Presentations

Invited Talks at International Meetings

  • 2014

    1. “Molecular quantum magnetism in LiZn2Mo3O8”, C. Broholm, at International Conference on Frustration and Topology in Condensed Matter, Tainan, Taiwan, February 2014.
  • 2013

    1. “Recent work on the superconductor-metal quantum phase transition,” N. P. Armitage, SudipFest, 65th birthday Festschrift for Sudip Chakravarty, Stanford, CA, December 2013.
    2. “How to kill a topological insulator,” N. P. Armitage, SLAC Workshop on Ultrafast Phenomena in Solids, October 2013.
    3. “Emergent quantum phenomena from new chemistry and new materials” T.M. McQueen, for the Exxon-Mobil Solid State Faculty Fellowship Award Symposium, American Chemical Society National Meeting, Indianapolis, IN, September 2013.
    4. “Neutron scattering from short range ordered quantum spin systems,” C. Broholm, Advances in quantum Magnets dynamics, Workshop at Kolymbari, Crete, Greece, September 2013.
    5. “THz investigations of exotic quantum states of matter,” N. P. Armitage, Stanford Oxide Workshop: August 2013.
    6. “Neutron scattering and frustrated magnetism”, C. Broholm, International Materials Conference, Cancun, Mexico, August 2013.
    7. “Spin ice and kagome antiferromagnet,” O. Tchernyshyov, Princeton Summer School on Condensed Matter Physics, August 2013.
    8. “Magnetic neutron scattering”, C. Broholm, Summer School on Neutron and X-ray Scattering, Oak Ridge National Laboratory, Oak Ridge, TN, August 2013.
    9. “Z2 spin liquid in the Heisenberg antiferromagnet on kagome,” Oleg Tchernyshyov, Aspen Center for Physics. Aspen, CO, July 2013.
    10. “Faraday and Kerr effect measurements of cuprates in THz regime,” N. P. Armitage, Conference on ”Spectroscopies in Novel Superconductors” 11, Berkeley, CA, June 2013.
    11. “THz magneto-ellipsometry of high-Tc superconductors and topological band insulators,” N. P. Armitage, 6th International Conference on Spectroscopic Ellipsometry, Kyoto, Japan, May 2013
    12. “Entangled magnetism,” C. Broholm, International Workshop on New states of matter and their excitations,” Berlin, Germany, April 2013.
    13. “Entangled magnetism: synthesis, detection, and potential applications,” C. Broholm, Symposium on Industrial Physics, March Meeting of the American Physical Society, Baltimore, MD, March 2013.
    14. “Incommensurate correlations and mesoscopic spin resonance in YbRh2Si2,” C. Broholm, March Meeting of the American Physical Society, Baltimore, MD March (2013).
    15. “Phenomenological theory for the Z2 spin-liquid phase of the S=1/2 kagome Heisenberg antiferromagnet,” Yuan Wan, APS March Meeting, Baltimore, MD, March 2013.
    16. “THz response of topological insulator surface states,” N. P. Armitage, DPG Spring Meeting of the German Physical Society, Regensburg, Germany, March 2013
    17. “Low-frequency electrodynamics of topological insulator surface states,” N. P. Armitage, Banff International Research Station workshop on Topological Phenomena in Quantum Dynamics and Disordered Systems, February 2013.
    18. “Low-frequency electrodynamics of topological insulator surface states,” N. P. Armitage, 2013 EMN West Meeting on Topological Insulators, January 2013.
  • 2012

    1. “Incommensurate correlations & mesoscopic spin resonance in YbRh2Si2,” C. Broholm, second workshop on “Heavy Fermions and Quantum Phase Transitions” at the Institute of Physics, Chinese Academy of Sciences in Beijing from November 11, 2012.
    2. “Phenomenological theory for the Z2 spin-liquid phase of an S=1/2 kagome Heisenberg antiferromagnet,” Yuan Wan, KITP Program on frustrated magnets and quantum spin liquids, Kavli Institute for Theoretical Physics, November 6, 2012. [link]
    3. “Neutron Scattering from Quantum and Frustrated Spin Chains”, M. Mourigal, SYNEMAG 2012 “Workshop on Synchrotron and Neutron Applications of High Magnetic Fields”, Grenoble, France, October 2012.
    4. “Geometric magnetic frustration in LiZn2Mo3O8,” T. M. McQueen, Fragnets conference, invited talk, Kavli Institute for Theoretical Physics, October 11, 2012 [link].
    5. “Quantum fluctuations in exchange based spin-ice,” C. Broholm, International Workshop on Exotic Phases of Strongly Correlated Electron Systems, Kavli Institute for Theoretical Physics, Santa Barbara, California, October 10, 2012.
    6. “Multichannel Cold Neutron Spectroscopy on MACS,” C. Broholm, Tenth International Conference on Quasielastic Neutron Scattering and Workshop on Inelastic Neutron Scattering Instrumentation, Nikko, Japan October 2, 2012.
    7. “Incommensurate correlations & mesoscopic spin resonance in YbRh2Si2,” C. Broholm, Workshop on Frontiers in Quantum Materials Fields Institute Center for Quantum Materials, University of Toronto, Toronto, Canada, September 25, 2012.
    8. “THz measurements of cuprate superconductors,” N. P. Armitage, Montauk conference on Strongly Correlated Physics in the Cuprates, organized by BNL, September, 2012.
    9. “Quantum fluctuations in exchange based spin-ice”, C. Broholm, German-ORNL collaborative meeting, Oak Ridge National Laboratory, September 13, 2012.
    10. “Adventures in magnetism,” O. Tchernyshyov, International Workshop on “New States of Matter and their Excitations,” Oak Ridge National Laboratory, Oak Ridge, TN, September 13-14, 2012.
    11. “Incommensurate correlations & mesoscopic spin resonance in YbRh2Si2,” C. Broholm, Innovations in Strongly Correlated Electronic Systems: School and Workshop, Trieste, Italy August 15, 2012.
    12. “Friedel-like Oscillations in Superconducting Fe1+yTe0.62Se0.38,” C. Broholm, Materials and Mechanisms of Superconductivity, M2S, Washington DC, July 30, 2012.
    13. “The low energy electrodynamics of topological surface states,” N. P. Armitage, International Conference on Low Energy Electrodynamics, Nappa Valley, California, July 2012.
    14. “THz measurements of cuprate superconductors,” N. P. Armitage, Materials and Mechanisms of Superconductivity, Washington, DC, July, 2012.
    15. “Spin-orbital short-range order on a honeycomb-based lattice,” C. Broholm, International Conference on Magnetism, Busan, South Korea, July 9, 2012.
    16. “Exotic ground states and excitations in quantum magnets,” O. Tchernyshyov, Symposium on “Frontiers in quantum matter,” George Mason University, Fairfax, VA, June 22, 2012.
    17. “Broadband microwave measurements of disordered superconductors,” N. P. Armitage, Non-equilibrium and coherent phenomena at nanoscale, Chernogolovka, Russia, June 2012.
    18. “Quantum fluctuations in exchange based spin-ice,” C. Broholm, International Conference on Highly Frustrated Magnetism, Hamilton, Ontario, Canada, June 8, 2012.
    19. “Artificial spin ice,” O. Tchernyshyov, International Conference on Highly Frustrated Magnetism 2012, Perimeter Institute, June 3, 2012. [link]
    20. “Geometric magnetic frustration in LiZn2Mo3O8,” T. M. McQueen, contributed talk at HFM 2012 McMaster University, June 6, 2012.
    21. “Spin ice on kagome: classical and quantum,” O. Tchernyshyov, International Conference on Highly Frustrated Magnetism 2012, McMaster University, June 4, 2012.
    22. “Spin-orbital short-range order on a honeycomb-based lattice,”  C. Broholm, Meeting of the Canadian Institute for Advanced Research, Quantum Materials Program, Toronto, Canada, May 19, 2012.
    23. “The low energy electrodynamics of topological surface states,” N. P. Armitage, NSLS/CFN Workshop on Topological Insulators, May 2012.
    24. “The THz response of topological surface states,” N. P. Armitage, DARPA, DSRC meeting: Solid State Devices with Vacuum Tube-like Electron, May 2012.
    25. “The low energy electrodynamics of topological surface states,” N. P. Armitage, Villa Conference on Energy, Materials and Nanotechnology – Topological Insulators, April 2012.
    26. “Scientific progress & opportunities using advanced neutron sources & instrumentation”, C. Broholm,  International Workshop on instrumentation for the European Spallation Neutron Source, Abingdon, United Kingdom, February 24, 2012.
  • 2011

    1. “Magnetic charges in spin ice on kagome,” International workshop Frustrated magnets: From spin ice to kagome planes, O. Tchernyshyov, International Institute of Physics, Natal, Brazil, December 11–16, 2011.
    2. “Spinons in the S=1/2 Heisenberg antiferromagnet on kagome,” O. Tchernyshyov, International workshop on Novel Quantum States, Yukawa Institute for Theoretical Physics, Kyoto, Japan, November 7 – December 9, 2011. [link]
    3. “THz measurements of the topological insulator Bi2Se3 (and its superconducting bilayers)”, N. P. Armitage, KITP Program on Topological Insulators and Superconductors, Kavli Institute for Theoretical Physics, October 14, 2011. [link]
    4. “THz measurements of the topological insulator Bi2Se3 (and its superconducting bilayers),” N. P. Armitage, Superconducting hybrids: From conventional to exotic, Villard de Lans, France, September 2011.
    5. “Interplay of Spin and Orbital Flavors in Iron-Based Superconductors”, Z. Tesanovic,European MRS Fall Meeting 2011, Warsaw, POLAND, September 19-23, 2011.
    6. “Terahertz spectroscopy of unconventional superconductors”, R. Valdez Aguilar,European MRS Fall Meeting 2011, Warsaw, POLAND, September 19-23, 2011.
    7. “AC transport in really, really dirty superconductors and near superconductor-insulator quantum phase transitions,” N. P. Armitage, Lorentz Center Workshop on Strongly Disordered Superconductors and Electronic Segregation, August 2011.
    8. “Spin-Orbit Interplay and Hidden Order in Iron-Pnictides”, Z. Tesanovic, XXVI International Conference on Low Temperature Physics, Beijing, CHINA, August 10-17, 2011. [pptx]
    9. “Field dependent spin resonance in superconducting CeCoIn5”, C. Broholm, XXVI International Conference on Low Temperature Physics, Beijing, CHINA, August 10-17, 2011.
    10. “Fast vortices and fluctuations in underdoped cuprates”, N. P. Armitage, XXVI International Conference on Low Temperature Physics, Beijing, CHINA, August 10-17, 2011.
    11. “The 2D superconductor-insulator transition,” N. P. Armitage, Princeton Summer School for Condensd Matter Physics, August 2011.
    12. “The Edge of Magnetism”, C. Broholm, Summer School on Cold Atoms and Magnetism, Department of Physics, Princeton University, Princeton, NJ, August 10,, 2011.
    13. “Magnetic Neutron Scattering”, C. Broholm, Summer School on Cold Atoms and Magnetism, Department of Physics, Princeton University, Princeton, NJ, August 10,, 2011.
    14. “Vortices in Correlated Superconductors”, Z. Tesanovic, XIII International Workshop on Vortex Matter in Superconductors, Chicago, IL, July 31 – August 5, 2011.
    15. “Fast vortices and fluctuations in underdoped cuprates and amorphous superconductors,” N. P. Armitage, Superstripes 2011, Rome, Italy, July 2011.
    16. “Lecture series on neutron scattering science and instrumentation,” C. Broholm, 8 x 50 min. lectures at the Institute for Solid State Physics, University of Tokyo, Kashiwa Campus, June-July, 2011.
    17. “Dynamics of Magnetic Charges in Artificial Spin Ice”, O. Tchernyshyov, Magnetic North II Workshop, St. John’s, CANADA, June 10-12, 2011.
    18. “Opportunities for strongly correlated electrons at high magnetic field and intensities,” N. P. Armitage, NHMFL “BigLight” workshop, April 2011.
    19. “Electron Correlations and High Temperature Superconductivity in Iron-Pnictides”, Z. Tesanovic, 2011 APCTP Winter Workshop on Frontiers in Electronic Quantum Matter, Pohang, SOUTH KOREA, February 16-19, 2011. [pptx]
    20. “Spinons in 2D quantum magnets”, C. Broholm, International Conference on Frustration in Condensed Matter (ICFCM), Sendai, JAPAN, Jan. 11-14, 2011.
    21. “Spin and Orbital Flavors in Pnictides”, Z. Tesanovic, KITP MiniProgram on Iron-Based Superconductors, Santa Barbara, CA, January 11-21, 2011. [pptxvideo]

  • 2010

    1. “Frontiers in Correlated Superconductivity”, Z. Tesanovic, New Opportunities in Hard Condensed Matter through Neutron Scattering, Oak Ridge NL, TN, December 16-18, 2010.
    2. “Five Neutron Experiments that Advanced Hard Condensed Matter”, New Opportunities in Hard Condensed Matter through Neutron Scattering, Oak Ridge NL, TN, December 16-18, 2010. [pptx]
    3. “From classical to quantum: Broadband microwave studies of superconducting fluctuations in 2D InO thin films”, N. P. Armitage, Argonne Conference on the Superconductor-Insulator Transition, ANL, November 16-19, 2010.
    4. “High Temperature Superconductors: From Copper to Iron”, Z. Tesanovic, International Workshop on Quantum Coherence and Correlations in Condensed Matter and Cold Atom Systems, Evora, PORTUGAL, October 11-15, 2010.
    5. “High Temperature Superconductivity in the Age of Iron”, Z. Tesanovic, Dutch National Seminar of Condensed Matter Physics, Leiden, THE NETHERLANDS, October 8, 2010.
    6. “Magnetic Fluctuations in Iron Superconductors”, C. Broholm, The 23rd General Conference of the Condensed Matter Division of the European Physical Society, August 31, 2010.
    7. “Ultrafast (but many-body) relaxation of a low density electron glass”, N. P. Armitage, KITP Conference on Out of Equlibrium Quantum Systems, Santa Barbara, CA, August 23-27, 2010.
    8. Recent Developments in High-Temperature Superconductivity: Pnictides versus Cuprates“, Z. Tesanovic, Nordita Program on Quantum Solids, Liquids and Gases, Stockholm, SWEDEN, July 19-August 27, 2010.
    9. “Unitarity in lattices and Cooper pair insulators”, P. Nikolic, Nordita Program on Quantum Solids, Liquids and Gases, Stockholm, SWEDEN, July 19-August 27, 2010.
    10. “Magnetism and Superconductivity in Pnictides”, Z. Tesanovic, ICTP Workshop on Principles and Design of Strongly Correlated Electronic Systems, Trieste, ITALY, August 2-13, 2010.
    11. “Two Lectures on Iron-Based Superconductors (and their cuprate cousins)”, Z. Tesanovic, 4th I2CAM/FaperJ Summer School, Rio de Janeiro, BRAZIL. June 6-12, 2010. [pptx1pptx2]
    12. “Magnetic Neutron Scattering”, C. Broholm, Tutorial at the American Conference on Neutron Scattering, Ottawa, CANADA, June 26, 2010. [pptxpdf]
    13. “Correlated High Temperature Superconductors: Pnictides versus Cuprates”, Z. Tesanovic, SNS2010, Shanghai, CHINA, May 23-28, 2010. [pptx]
    14. “Spin Excitations with Fermi Statistics in the S = 1/2 Heisenberg Model on kagome”, O. Tchernyshyov, International Workshop on Novel Physics on the Kagome Network, Orsay, FRANCE, January 18-20, 2010. [pdf]

  • 2009

    1. “Spin Resonance in Superconductors near Magnetic Instabilities”, C. Broholm, M2S IX, 9th International Conference on Materials and Mechanisms of Superconductivity, Tokyo, JAPAN, September 7-12 (2009). [pptx]
    2. “Spinon Pairs in the S=1/2 Heisenberg Model on Kagome”, O. Tchernyshyov, International Workshop on Topological Order: From quantum Hall systems to magnetic materials”, Dresden, Germany, July 2009.
    3. “Iron-Pnictide Superconductors as Multiband Correlated Metals”, Z. Tesanovic, International Workshop on High Temperature Superconductivity, Haifa, ISRAEL, June 14-18, 2009. [ppt]
    4. “Iron-Pnictide Superconductors as Multiband Correlated Metals”, Z. Tesanovic , CIFAR – Quantum Materials Program of the Canadian Institute for Advanced Research, Vancouver, CANADA, May 28-30, 2009. [ppt]
    5. “Multiband effects in FeAs superconductors”, Z. Tesanovic , New3SC-7, Seventh International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials, Beijing, CHINA, May 13-16, 2009.
    6. “Exploring Quantum Magnetism Through Neutron Scattering”, C. Broholm, International Conference on Neutron Scattering, Konoxville, Tennessee, May 4-7, 2009. [pptx]
    7. “Physics of the spin gap in the S=1/2 Heisenberg antiferromagnet on kagome”, O. Tchernyshyov, Meeting of the American Physical Society, Pittsburgh, PA, March 2009.
    8. “Quantum Critical Spin Fluctuations in YbRh2Si2”, C. Broholm, International Workshop on Quantum Critical Phenomena and Novel Phases in Super-clean Materials, Hawaii Imin International Conference Center , Honolulu, Hawaii, January 13 (2009).

  • 2008>

    1. “Valley Density-Wave and Superconductivity in Iron Pnictides”, Z. Tesanovic, Princeton Center for Theoretical Sciences Program on Iron-based High Temperature Superconductors, Princeton, NJ, November 13-14, 2008.
    2. “Spinon Pairs in the S=1/2 Heisenberg Model on Kagome”, O. Tchernyshyov, International Workshop on “Ordering Phenomena in Transition Metal Oxides”, Augsburg, Germany, October 5-8 2008.
    3. “Multiband effects in FeAs superconductors”, Z. Tesanovic, Hvar 2008, Conference on Concepts in Electron Correlations, Hvar, CROATIA, September 24-30, 2008.
    4. “Iron Superconductivity”, Z. Tesanovic, ASC 2008, Applied Superconductivity Conference Special Late-Breaking Session on Iron-based Superconductors, Chicago, IL, August 17-22, 2008.
    5. “Iron Superconductivity”, Z. Tesanovic, Max-Planck Institute Conference on Competing Orders, Pairing Fluctuations, and Spin Orbit Effects in Novel Unconventional Superconductors, Dresden, GERMANY, June 30 – July 11, 2008.
    6. “Quantum Coherence in Rings of Unconventional Superconductors”, Z. Tesanovic, SpiNor 2008, Center for Advanced Study, Norwegian Academy of Sciences, Oslo, NORWAY, May 13-16, 2008.

Invited Seminars and Colloquia


  • 2014

    1. “Z2 spin liquid in kagome Heisenberg antiferromagnet,” Yuan Wan, Brookhaven National Lab. Brookhaven, NY, January 2014.

  • 2013

    1. “How to kill a topological insulator,” N. P. Armitage, MIT. Cambridge, MA, December 2013.
    2. “Z2 spin liquid in kagome Heisenberg antiferromagnet,” Yuan Wan, Perimeter Institute. Waterloo, Canada, November 2013.
    3. “Skyrmion dynamics in helimagnets,” Jiadong Zang, University of Utah. Salt Lake City, UT, November 2013.
    4. “Entangled Magnetism,” C. Broholm, University of Missouri. Columbia, MO, November 2013.
    5. “How to kill a topological insulator,” N. P. Armitage, University of Michigan. Ann Arbor, MI, October 2013.
    6. “Heavy electrons, charge density fluctuations, and superconductivity in KNi2X2 (X=S,Se)” T. M. McQueen, National High Magnetic Field Laboratory. Tallahassee, FL, October 2013.
    7. “Quantum fluctuations in spin-ice-like Pr2Zr2O7”, C. Broholm, MIT. Cambridge, MA, October 2013.
    8. “How to kill a topological insulator,” N. P. Armitage, Louisiana State University. Baton Rouge, LA, September 2013.
    9. “How to kill a topological insulator,” N. P. Armitage, ISSP, University of Tokyo. Tokyo, Japan, May 2013.
    10. “How to kill a topological insulator,” N. P. Armitage, University of Osaka. Osaka, Japan, May 2013.
    11. “THz investigations of exotic quantum states of matter,” N. P. Armitage, Argonne National Lab. Chicago, IL, May 2013.
    12. “How to kill a topological insulator,” N. P. Armitage, University of Waterloo. Waterloo, Canada, May 2013.
    13. “Z2 spin liquid in kagome Heisenberg antiferromagnet,” Yuan Wan, University of Califormia. Irvine, CA, April 2013.
    14. “Z2 spin liquid in the Heisenberg antiferromagnet on kagome,” O. Tchernyshyov, Princeton University. Princeton, NJ, April 2014.
    15. “Z2 spin liquid in the Heisenberg antiferromagnet on kagome,” Oleg Tchernyshyov, University of Virginia. Charlottesville, VA, April 2014.
    16. “How to kill a topological insulator,” N. P. Armitage, Rutgers University. New Brunswick, NJ, March 2013.
    17. “Continuum Excitations in Crystalline Magnets,” C. Broholm, Princeton University. Princeton, NJ, March 2013.
    18. “Fractionalized quasi-particles in frustrated quantum magnets,” C. Broholm, Georgia Tech. Atlanta, GA, February 2013.
    19. “How to kill a topological insulator,” N. P. Armitage, University of Pennsylvania. Philadelphia, PA, February 2013.
    20. “Terahertz transport properties in the topological insulator Bi2Se3”, Rolando Valdés Aguilar, School of Physics and Astronomy Condensed Matter Seminar, University of Minnesota. Minneapolis, MN, February 2013.
    21. “Terahertz transport properties in the topological insulator Bi2Se3”, Rolando Valdés Aguilar, Department of Physics Condensed Matter Colloquium, Ohio State University. Columbus, OH, February 2013.
    22. “Heavy electrons, charge density fluctuations, and superconductivity in KNi2X2 (X=S,Se)” T. M. McQueen, Caltech. Pasadena, CA, February 2013.
    23. “Terahertz transport properties in the topological insulator Bi2Se3”, Rolando Valdés Aguilar, Department of Physics Colloquium, Emory University. Atlanta, GA, January 2013.
    24. “Heavy electrons, charge density fluctuations, and superconductivity in KNi2X2 (X=S,Se)” T. M. McQueen, National Institute for Standards and Technology. Gaithersburg, MD, January 2013.

  • 2012

    1. “Detecting pairing symmetry in Fe-based superconductors: Solitons and proximity patch,” V. Vakaryuk, Invited seminar at the Oklahoma University, Norman OK, December 7 2012.
    2. O. Tchernyshyov, National High Magnetic Field Laboratory, Tallahassee, FL, December 7, 2012.
    3.  “Quantum Correlated Materials,” C. Broholm, DoE program manager visit to Institute for Quantum Matter, December 3, 2012.
    4. “Detecting pairing symmetry in Fe-based superconductors: Solitons and proximity patch”. V. Vakaryuk, Invited seminar at George Mason University, Fairfax VA, November 2, 2012.
    5. “THz investigations of exotic quantum states of matter,” N. P. Armitage, Physics Department Colloquium, University of California, Santa Barbara, November, 2012.
    6. “Low frequency electrodynamics of topological insulator surface states,” N. P. Armitage, Condensed Matter Seminar, Department of Physics and Astronomy, Rice University, November, 2012.
    7. “Mixed-valence-driven heavy fermion behavior and superconductivity in KNi2X2 (X=S, Se),” T. M. McQueen, Naval Research Laboratory, invited seminar, November 9, 2012.
    8. “Low frequency electrodynamics of topological insulator surface states,” N. P. Armitage, Condensed Matter Seminar, Department of Physics and Astronomy, University of British Columbia, October, 2012.
    9. “Excitations fractionnaires et effet de la frustration dans les chaines de spins quantiques”, M. Mourigal, Laboratoire Leon Brillouin, Saclay, France, October, 2012.
    10. “Neutron Scattering Experiments for Quantum and Frustrated Spin Chains”, M. Mourigal, Kavli Institute for Theoretical Physics, Santa Barbara, USA, October 2012.
    11. O. Tchernyshyov, Ohio State University, Columbus, OH, October 15, 2012.
    12. “Low frequency electrodynamics of topological insulator surface states,” N. P. Armitage, Colloquium, CNAM colloquium, University of Maryland, College Park, September, 2012.
    13. “Hard Condensed Matter: Synthesis & Spectroscopy,” C. Broholm, Department of Physics and Astronomy, Johns Hopkins University, Fall 2012 Research Jamboree, August 30, 2012.
    14. “Magneto-elasticity in frustrated magnets,” C. Broholm, DoE Review of the Neutron Scattering Science Division of Oak Ridge National Laboratory, Oak Ridge, TN August 28, 2012.
    15. “Quantum Correlated Materials & Phenomena,” C. Broholm, Neutron Scattering Principal Investigators’ Meeting, Gaithersburg Marriott Washingtonian Center Gaithersburg, Maryland, July 22-25, 2012.
    16. “Neutron scattering from frustrated ferromagnetic spin chains,” M. Mourigal, Super-Pire Workshop 2012, Bethesda, USA, July 2012.
    17. “Neutron Scattering at High Magnetic Fields,” C. Broholm, Presentation to National Research Council committee on opportunities in high magnetic field research, May 17, 2012.
    18. “Fractionalized quasi-particles in frustrated quantum magnets,” C. Broholm, Distinguished Lecture in Quantum Magnetism, Department of Physics, Rice University, April 18, 2012.
    19. “Terahertz response and colossal Kerr rotation in the topological insulator Bi2Se3”, Rolando Valdés Aguilar, Center for Integrated Nanotechnologies Seminar, Los Alamos National Laboratory. Los Alamos, New Mexico. April 2012.
    20. “Interplay of magnetism and bonding in spin-ladder iron selenides,” T. M. McQueen, UCBS Materials Research Laboratory, Lange Lecture, Invited, April 6, 2012.
    21. “Spin correlations in unconventional superconductors,” C. Broholm, JHU-Nanjing meeting at Johns Hopkins University, March 5, 2012.
    22. O. Tchernyshyov, Los Alamos National Laboratories, Los Alamos, NM, February 15, 2012.

  • 2011

    1. “How fast are the vorticesin the cuprates,” N. P. Armitage, Condensed Matter Seminar, Caltech, December, 2011.
    2. The Edge of Magnetism,” C. Broholm, Colloquium, Department of Physics and Astronomy, University of Florida, November 10, 2011.
    3. “THz measurements of the topological insulator Bi2Se3 (and its superconducting bilayers),” N. P. Armitage, Condensed Matter Seminar, University of Illinois at Urbana Champaign, October 2011.
    4. “THz measurements of the topological insulator Bi2Se3 (and its superconducting bilayers),” N. P. Armitage, Condensed Matter Seminar, University of Delaware, October 2011.
    5. “Electron Correlations and High Tc Superconductivity in Iron Pnictides”, Z. Tesanovic, Centre Seminar, London Centre for Nanotechnology, September 22, 2011.
    6. “Correlated High Tc Superconductivity: Pnictides versus Cuprates”, Z. Tesanovic, Johns Hopkins-Nanjing Center, Nanjing University, CHINA, August 17, 2011.
    7. “Attempts at Magnetism on the Kagome Lattice”, C. Broholm, Colloquium, Institute for Solid State Physics, University of Tokyo Kashiwa Campus, May 12, 2011.
    8. “Donuts, coffee cups, and topological insulators,” N. P. Armitage, Colloquium, Millersville University, April 2011.
    9. “The Edge of Magnetism”, C. Broholm, Colloquium, School of Physics and Astronomy, University of Minnesota, April 13, 2011.
    10. “The Edge of Magnetism”, C. Broholm, Applied Physics Seminar, Caltech, April 5, 2011.
    11. “Superconductivity in the Iron Age”, Z. Tesanovic, Condensed Matter Science Colloquium, Los Alamos National Laboratory, April 6, 2011.
    12. “Fast vortices and fluctuations in underdoped cuprates and amorphous superconductors,” N. P. Armitage, Condensed Matter Colloquium, Hamburg DESY, February 2011.
    13. “Fast vortices and fluctuations in underdoped cuprates and amorphous superconductors,” N. P. Armitage, Condensed Matter Seminar, Landay Institute, Moscow, January 2011.

  • 2010

    1. “Ultrafast (but many-body) relaxation of a low density electron glass,” N. P. Armitage, Condensed Matter Seminar, University of Minnesota, December 2010.
    2. “Superconductivity in the Iron Age”, Z. Tesanovic, Physics Colloquium, Waterloo University, October 28, 2010.
    3. “Superconductivity in the Iron Age”, Z. Tesanovic, Condensed Matter Seminar, National High Magnetic Field Laboratory and FSU, October 22, 2010.
    4. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, Harvard University, September 20, 2010. [videopptx]
    5. “Fermionic spinons in the S=1/2 Heisenberg model on kagome,” O. Tchernyshyov, seminar, Max Planck Institute for Solid State Research, Stuttgart, GERMANY, June 23, 2010.
    6. “Fractional spin excitations in frustrated antiferromagnets,” O. Tchernyshyov, seminar, Max Planck Institute for the Physics of Complex Matter, Dresden, GERMANY, June 22, 2010.
    7. “Spinons in the S=1/2 Delta (sawtooth) chain,” O. Tchernyshyov, Max Planck Institute for the Physics of Complex Matter, Dresden, GERMANY, June 10, 2010.
    8. “High Tc Superconductivity: Iron vs Copper”, Z. Tesanovic, Seminar, Princeton University, April 12, 2010.
    9. “Dynamical measurements of superconducting fluctuations in underdoped cuprates and amorphous superconductors”, N. P. Armitage, Colloquium, Los Alamos National Laboratory, March 2010.
    10. “Spin Excitations with Fermi Statistics in Frustrated Antiferromagnets”, O. Tchernyshyov, Seminar, University of Toronto, March 31, 2010.
    11. “Spin Excitations with Fermi Statistics in Frustrated Antiferromagnets”, O. Tchernyshyov, Washington University (StLouis), March 8, 2010.
    12. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Colloquium, Fermi National Accelerator Laboratory, March 3, 2010. [video]
    13. “When Magnets Superconduct”, C. Broholm, Seminar, ETH Zurich, SWITZERLAND, February 19, 2010.
    14. “Dynamical measurements of superconducting fluctuations in underdoped cuprates and amorphous superconductors”, N. P. Armitage, Colloquium, Walther Meissner Institut, GERMANY, February 2010.
    15. “When Magnets Superconduct”, C. Broholm, Colloquium, University of Utah, January 14, 2010.

  • 2009

    1. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Colloquium, University of Wisconsin, November 20, 2009.
    2. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Colloquium, Brookhaven National Laboratory, October 20, 2009.
    3. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Colloquium, University of Illinois, Urbana-Champaign, October 8, 2009. [pptx]
    4. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Colloquium, Aspen Center for Physics, July 16, 2009. [pdf]
    5. “Magnetism Exposed – an Evolving View from Neutron Scattering”, C. Broholm, Symposium in honor of Dr. Dir. Michel Steiner, Helmholtz-Zentrum Berlin für Materialien und Energie, June 2-3, 2009. [pptx]
    6. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, University of Virginia, May 1, 2009.

  • 2008

    1. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, Iowa State University-Ames Laboratory, October 20, 2008.
    2. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, Simon Fraser University, October 17, 2008.
    3. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic , Physics Colloquium, University of British Columbia, October 16, 2008.
    4. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, University of Toronto, September 11, 2008.
    5. “Superconductivity at the Dawn of the Iron Age”, Z. Tesanovic, Physics Colloquium, McMaster University, September 10, 2008.

Contributed Presentations

Activities after instatement of DE-FG02-08ER46544 acknowledge DoE support. All others are indicated in italic font.


  • 2013

    1. “Superconductivity and New Compounds in the Bi-O-S System”, W. Adam Phelan, American Physical Society National Meeting, Baltimore, MD March (2013).
    2. “Terahertz excitations near the quantum critical point in the 1D Ising chain quantum magnet CoNb2O6,” Christopher M. Morris, American Physical Society National Meeting, Baltimore, MD March (2013).
    3. “Spin Correlations in the Different Phases of URu2Si2,” T. J. Williams, American Physical Society National Meeting, Baltimore, MD March (2013).
    4.  “Raman phonon study of Jahn-Teller distortion in Ba3CuSb2O9,” N. Drichko, American Physical Society National Meeting, Baltimore, MD March (2013).
    5. “Raman Evidence for Symmetry Breaking in SrCr2O4,” M. Valentine, American Physical Society National Meeting, Baltimore, MD March (2013).
    6. “Quasi-two-dimensional non-collinear magnetism in the Mott insulator Sr2F2Fe2OS,” Shan Wu, American Physical Society National Meeting, Baltimore, MD March (2013).
    7. “Dynamical spectra of quantum strings in quantum spin ice,” W. Fuhrman, American Physical Society National Meeting, Baltimore, MD March (2013).
    8. “Evidence of valence bond condensation in the frustrated cluster magnet LiZn2Mo3O8“, John P. Sheckelton, American Physical Society National Meeting, Baltimore, MD March (2013).
    9. “Spin dynamics of the triangular lattice antiferromagnet α-SrCr2O,” Martin Mourigal, American Physical Society National Meeting, Baltimore, MD March (2013).
    10. “Selective d-band Participation in Magnetic and Electronic Behavior of Spin-Ladder Iron-chalcogenides” Joseph Caron, American Physical Society National Meeting, Baltimore, MD March (2013).
    11. “Spin-1/2 Heisenberg antiferromagnet on kagome: Z2 spin liquid with fermionic spinons,” Oleg Tchernyshyov, American Physical Society National Meeting, Baltimore, MD March (2013).
    12. “Dislocations in the Kitaev honeycomb model,” Olga Petrova, American Physical Society National Meeting, Baltimore, MD March (2013).
    13. “Time domain terahertz study of quantum spin ice Yb2Ti2O,” LiDong, American Physical Society National Meeting, Baltimore, MD March (2013).
    14. “Charge density wave fluctuations and possible heavy fermion behavior without magnetism in ThCr2Si2-type KNi2S2 and KNi2Se,” J. Neilson, American Physical Society National Meeting, Baltimore, MD March (2013).
    15. “The Nature of the Superconductivity of Tl5Te,” K. Arpino, American Physical Society National Meeting, Baltimore, MD March (2013).
    16. “An abrupt change in transport dynamics across the topological phase transition in the (Bi1−xInx)2Se3 and ultra-thin Bi2Se3 systems,” Liang Wu, American Physical Society National Meeting, Baltimore, MD March (2013).

  • 2012

    1. “Terahertz response and colossal Kerr rotation in the topological insulator Bi2Se3” (poster), Rolando Valdés Aguilar, International Conference on Low Energy Electrodynamics in Solids, Napa Valley, California. July 2012.
    2. “Mixed-valence heavy-Fermion superconductivity in the ThCr2Si2 structure type,” J.R. Neilson, GRC Solid State Chemistry, New London, NH, July 22-27, 2012 (poster).
    3. “Local Displacements: Magnetoelastic Coupling and Bonding in Spin-Ladder Iron Selenides,” (Poster), T.M. McQueen, GRC Solid State Chemistry, New London, NH, July 22-27, 2012.
    4. “Magnetic-field induced quadrupolar magnetic order in LiCuVO4”, M. Mourigal, Highly Frustrated Magnetism 2012, McMaster University, Canada, June 2012.
    5. “Terahertz response and colossal Kerr rotation in the topological insulator Bi2Se3” (poster), Rolando Valdés Aguilar, Gordon Research Conference on Correlated Electron Systems, Mount Holyoke, Massachusetts. June 2012.
    6. “Magnetic-field induced quadrupolar magnetic order in LiCuVO4”, M. Mourigal, Rencontres Rossat-Mignot 2012, Seignosse, France, May 2012.
    7. “Raman phonon study of Jahn-Teller distortion in  Ba3CuSb2O9” (poster), N. Drichko, Highly Frustrated Magnetism 2012, McMaster University, Canada,  May 2012.
    8. “Quantum spin liquid in frustrated one dimensional LiCuSbO4”, M. Mourigal, APS March Meeting 2012, Boston, USA, March 2012.
    9. “Quantum Criticality on Graphs”, Adrian Del Maestro, James Murray and Zlatko Tesanovic,  APS March Meeting, Boston, MA, March 1, 2012.
    10. “Terahertz response and colossal Kerr rotation in the topological insulator Bi2Se3“, Rolando Valdés Aguilar, APS March Meeting. Boston, Massachusetts. March 2012.
    11. “Local Displacements, Magnetoelastic Coupling, and Bonding in Spin-Ladder Iron Selenides,” J.R. Neilson, APS National Meeting, Boston, March 2, 2012.
    12. “Dynamical strings in quantum spin ice,” Y. Wan, March Meeting of the APS, Boston, MA, February 27-March 2, 2012.

  • 2011

    1. “Herbertsmithite: a slightly less than ideal kagome antiferromagnet,” Y. Wan, Z. H. Hao, and O. Tchernyshyov, APS 2011 March Meeting, Dallas, TX, BAPS.2011.MAR.D18.5.
    2. “Metallic magnetization plateau on triangular lattice,” Z. H. Hao and O. Starykh, APS 2011 March Meeting, Dallas, TX, BAPS.2011.MAR.P18.7.
    3. “Unitarity in periodic potentials and correlated s-wave Cooper pair insulators”, P. Nikolic, (contributed talk) March Meeting of the American Physical Society, Dallas, TX, March 21-25 2011.
    4. “Large D-2 Theory of Superconducting Fluctuations in a Magnetic Field and Its Application to Iron-Pnictides” J. M. Murray, March Meeting of the American Physical Society, Dallas, TX, March 21, 2011.

  • 2010

    1. “Pair density wave instability and Cooper pair insulators in gapped fermion systems” (poster), P. Nikolic, International Conference on Strongly Correlated Electron Systems, Santa Fe, June 27 – July 2, (2010).
    2. “Pair density wave instability and Cooper pair insulators in gapped fermion systems” (poster), P. Nikolic, Gordon Research Conference on Correlated Electron Systems, South Hadley, June 13-18, (2010).
    3. “Spinons in the S=1/2 Heisenberg antiferromagnet on kagome,” Zhihao Hao, contributed talk, International Conference on Highly Frustrated Magnetism, August 1-6, (2010).
    4. “Dynamical structure factor of spin 1/2 Heisenberg antiferromagnet on kagome lattice,” contributed talk, Zhihao Hao, APS March Meeting, Portland, OR, March 15-20, (2010).
    5. “A second species of spinons in the S=1/2 Heisenberg antiferromagnet on kagome,” contributed talk, Paula Mellado, APS March Meeting, Portland, OR, March 15-20, (2010).
    6. “Magnetic fluctuations and quasi-static magnetism in optimally doped FeSe0.4Te0.6”, Vivek Thampy, (contributed talk), March Meeting of the American Physical Society, Portland, March 15–19, (2010).
    7. “The Persistence of Superconducting Fluctuations in Underdoped LSCO”, Lucas Bilbro, (contributed talk), March Meeting of the American Physical Society, Portland, March 15–19, (2010).
    8. “Finite Momentum Pairing Instability of Band-Insulators with Multiple Bands” (contributed talk), P. Nikolic, March Meeting of the American Physical Society, Portland, March 15–19, (2010).
    9. “Three-Band Superconductivity and Time-Reversal Symmetry Breaking Order Parameter” (contributed talk), V. Stanev, APS March Meeting, Portland, OR, March 15-19 (2010).
    10. “Properties of Spin-Waves in Iron Pnictides” (contributed talk), J. Kang, APS March Meeting, Portland, OR, March 15-19, (2010).
    11. “Ginzburg-Landau Theory of Layered Superconductors: Application to Iron Pnictides” (contributed talk), J. M. Murray, APS March Meeting, Portland, OR, March 15-19, (2010).
    12. “Spin Density Wave in Iron Pnictides” (poster), J. Kang, Workshop on Exotic Insulating states of Matter, Johns Hopkins University, January 14-16, (2010).
    13. “Fluctuation Effects in Layered Superconductors: Application to Iron Pnictides” (poster), J. M. Murray, ICAM Workshop on Exotic Insulating States of Matter, Johns Hopkins University, Baltimore, MD, January 14-16, (2010).

  • 2009

    1. Luke Bilbro “Time-domain THz spectroscopy of underdoped La2-xSrxCuO4”, Poster Presentation, International Workshop on the Search for New Superconductors – Frontier and Future, May 12-16, 2009 Kanagawa, Japan
    2. Luke Bilbro, “Time-domain THz spectroscopy of underdoped La2-xSrxCuO4”, Contributed Presentation, 2009 APS March meeting

  • 2008

    1. Lucas Bilbro, V. Cvetkovic, Wei Liu, and J. Murray, Participants at NSF Boulder School for Condensed Matter and Materials Physics Strongly Correlated Materials, Boulder, CO, June 30 -July 18, 2008.