Program on Quantum Magnetism in Novel Materials and Geometries

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INSTITUTE FOR THEORETICAL PHYSICS

Program on

Quantum Magnetism in Novel Materials and Geometries

August - December, 1999

Coordinators: R. Singh, W. Pickett, D. Khomskii, G. Sawatzky

Speakers: Please give your transparencies to the ITP staff members in the front office (Rm 1102) for scanning. They will be returned promptly to your mailbox.

Time	Speaker	Title
8/26 12:15 p.m.	Dr. W. Putikka ITP & Ohio State	Phase Separation in the t-J models[Audio]
8/26 3:30	Dr. A. Aharony ITP & Tel-Aviv University	Spin-Orbit Anisotrophy: A Review[Audio]
8/27 10:00 a.m.	Dr. D. Basov UCSD	Optical Studies of Spectral Weight Transfer in Correlated Electron Systems[Audio]
8/31 10:00 a.m.	Dr. D. Mattis, ITP & University of Utah Dr. A. Kampf, ITP & University of Augsburg	Discussion: Random Magnetic Systems
9/2 10:00 a.m.	Dr. Ian Affleck ITP & U British Columbia	Notes on Continuum Limit of Hubbard and Heisenberg Model, Bosonization, etc.[Audio]
9/2 12:15 p.m.	Dr. L. Balents UCSB Physics Dept.	Excitonic Ordering from Weak to Strong Coupling: Enhanced Symmetry, Phase Separation, and Ferromagnetism[Audio]
9/3 10:00 a.m.	Dr. I. Mazin, ITP & Naval Research Lab Dr. H. Monien, ITP & Universitat at Bohn	Discussion: Ruthenates[Audio]
9/7, 10:00 a.m.	Dr. I. Mazin ITP & Naval Research Lab	Spin-polarized Tunneling[Audio]
9/7, 3:30 p.m.	Dr. I. Affleck ITP & University of Britsh Columbia	Bosonization II[Audio]
9/8, 2:00 p.m.	Dr. Martin Greven Stanford University	Diluted Spin - 1/2 Heisenberg Antiferromagnet[Audio]
9/9, 12:15 p.m.	Dr. C. Lhuillier ITP & University Pierre et Marie Curie	What Can Exact Diagonalization Teach Us: From Neel LRO to Quantum Disorder[Audio]
9/10, 10:00 a.m.	Dr. I. Affleck ITP & University of British Columbia	Bosonization III[Audio]
9/10, 12:15 p.m.	Dr. C. Lhuillier ITP & University Pierre et Marie Curie	Spin 1/2 Kagome Antiferromagnet: First Excitations and Open Questions[Audio]
9/14, 10:00 a.m.	Dr. C. Hamer ITP and Univeristy of New South Wales	Series Expansions and the J1-J2 Model[Audio]
9/16, 12:15 p.m.	Dr. Franca Manghi ITP & Universita di Modena	Correlations in Multiband Systems[Audio]
9/20, 2:00 p.m.	Dr. Vladimir Anisimov ITP & IMP-Ekaterinburg	Correlation Effects in Electronic Structure Calculations: LDA + Model Hamiltonian[Audio]
9/21, 10:00 a.m.	Dr. Gen Shirane ITP & Brookhaven National Laboratory	Cuprate Magnetism[Audio]
9/22, 1:30 p.m.	Dr. Antoine Georges ITP & l'Ecole Normale Suprieure	Dynamical Mean Field Theory for Correlated Electron Systems[Audio]
9/23, 12:15 p.m.	Dr. Erwin Müller-Hartmann ITP & Univ. Köln, ITP	Quantum Spin Systems with Fully Dimerized Ground States
9/27, 2:00 p.m.	Dr. Balazs Gyorffy ITP & University of Bristol	Disordered Local Moments and Finite Temperature Magnetism[Audio]
9/28, 10:00 a.m.	Dr. Ian Affleck (ITP & University of British Columbia) Dr. Wolfram Brenig (ITP & TU Braunschweig) Dr. Claudius Gros (ITP & Univ. Saarlandes) Dr. Roser Valenti (ITP & Univ. Saarlandes)	Spin-Peierls Phenomena[Audio]
10/4, 2:00 p.m.	Dr. Claudius Gros ITP & Universität des Saarlandes	Sodium Vanadates: Results and Open Questions[Audio]
10/5, 10:00 a.m.	Dr. Claudius Gros (ITP & Universität des Saarlandes) Dr. Roser Valenti (ITP & Universität des Saarlandes) Dr. Erwin Mueller-Hartmann (ITP & Universität zu Köln)	Spin-Peierls Phenomena (continued)
10/7, 12:15 p.m.	Dr. Wolfram Brenig ITP & TU Braunschweig	Carrier Dynamics in Frustrated and Dimerized Spin Chains[Audio]
10/11, 2:00 p.m.	Dr. Art Ramirez ITP & Bell Labs	Geometrical Frustration, Negative Thermal Expansion and the Physics of Underconstraint
10/12, 10:00 a.m.	Dr. Vladimir Anisimov ITP & Institute of Metal Physics, Ekaterinburg	Exchange Interactions and Kondo Energy Scales in Vanadates[Audio]
10/14, 12:15 p.m.	Dr. Mark Jarrell ITP & University of Cincinnati	Beyond Dynamical Mean-Field Theory[Audio]
10/18, 2:00 p.m.	Dr. Johannes Zaanen ITP & University of Leiden	Stripes in Cuprate[Audio]
10/19, 10:00 a.m.	Dr. Robert Kiefl University of British Columbia	Local Magnetic Properties of Geometrically Frustrated Magnets Observed by Muon Spin Rotation/Relaxation[Audio]
10/21, 12:15 p.m.	Dr. Ross McKenzie ITP & University of New South Wales	A Strongly Correlated Electron Model for Layered Organic Superconductors[Audio]
10/22, 10:00 a.m.	Dr. Heinrich Roder	Introduction to Wavelets: Toylets (first of two part tutorial)[Audio]
10/25, 2:00 p.m.	Dr. Johannes Zaanen ITP & University of Leiden	Stripes in Cuprates: The Sequel[Audio]
10/26, 10:00 a.m.	Dr. Ian Affleck ITP & University of British Columbia	Theory of ESR in Half-Integer S Antiferromagnetic Chains: Application to Cu Benzoate[Audio]
10/27, 12:15 p.m.	Dr. Heinrich Roder ITP & Los Alamos National Lab	Introduction to Wavelets: Part II[Audio]
10/28, 12:15 p.m.	Dr. Oleg Sushkov ITP & University of New South Wales	Spontaneous Spin Stripe Dimerization in the Doped t-J Model[Audio]
11/1, 2:00 p.m.	Dr. Matthew Fisher ITP	Vortices and Z₂ Gauge Theory of Correlated Electrons[Audio]
11/2, 10:00 a.m.	Dr. Warren Pickett ITP and UC Davis	A Superconducting Ferromagnet RuSr₂GdCu₂O₈[Audio]
11/4, 12:15 p.m.	Dr. Hans-Jurgen Mikeska ITP and University Hannover	Elementary Excitations in Spin Ladder with Nonzero Biquadratic Exchange[Audio]
11/8, 2:00 p.m.	Dr. Nicolai Prokofiev ITP, UCSB	Diagrammatic Monte Carlo & Worm-Algorithm Methods, Application to Polarons[Audio]
11/9, 10:00 a.m.	Dr. Jean-Pierre Locquet IBM, Zurich	Strong Enhancement of Tc in Strained HTS Thin Films[Audio]
11/10, 12:15 p.m.	Dr. John Hill Brookhaven National Lab	X-Ray Resonant Scattering: A New Probe of Charge and Orbital Ordering in Transition Metal Oxides[Audio]
11/11, 12:15 p.m.	Dr. Wolfgang Wernsdorfer L. Neel-CNRS	Tunneling, Berry Phase, and Decoherence in Molecular Nanomagnets Fe8[Audio]
11/12, 10:00 a.m.	Dr. Irinel Chiorescu L. Neel-CNRS	Environmental Effects on a Low Spin Molecular Magnet V₁₅[Audio]
11/15, 2:00 p.m.	Dr. Z. X. Shen Stanford University	Doping of Mott Insulators in Cuprates[Audio]
11/16, 10:00 a.m.	Dr. Steven R. White UC Irvine	Phase Separation, Stripe Formation and Superconductivity in the t-J Model[Audio]
11/16, 2:00 p.m.	Dr. Hiroshi Yasuoka Advanced Research Center, Japan Atomic Energy Research Institute	NMR Studies of Exotic Oxides[Audio]
11/17, 2:00 p.m.	Dr. Gabriel Aeppli NEC Research Institute	From Fundamental Magnetism to Brute Force Quantum Computation
11/18, 12:00 p.m.	Dr. Gabriel Aeppli (NEC Research Institute) Dr. George Sawatzky (ITP, UCSB)	Discussion: Spin-Waves in 2-d s=1/2 Heisenberg Antiferomagnets
11/19, 11:00 a.m.	Dr. Philip Stamp ITP, UBC, Vancouver and Utrecht	The Decoherence Puzzle in Quantum Magnets (& Superconductors, and Conductors!)
11/22, 2:00 p.m.	Dr. Balazs Gyorffy ITP, UCSB & Bristol University	Bose-Einstein Condensation for d-wave Superconductors[Audio]
11/23, 10:00 a.m.	Dr. Ganapathy Baskaran ITP, UCSB & Institute of Mathematical Sciences, India	Competition Between Superconductivity and Charge Stripe Order in High Tc Cuprates[Audio]
11/24, 10:00 a.m.	Dr. Konstantin Kikoin ITP, UCSB	Kondo Effect in Quantum Dots with Even Number of Electrons
11/29, 2:00 p.m.	Dr. David Johnston Department of Physics & Astronomy, Iowa State University	The First d-electron Based Heavy Fermion System LiV₂0₄[Audio]
11/30, 10:00 a.m.	Dr. Chris Henley ITP, UCSB & Cornell University	Semiclassical Approach to Quantum Spin Systems[Audio]
11/30, 2:00 p.m.	Dr. Vasili Perebeinos SUNY, Stonybrook	Polarons and Self-Trapped Excitons in LaMn0₃[Audio]
12/2, 12:15 p.m.	Dr. Yutaka Moritomo Nagoya University, Japan	Electronic Structure of Several Half-Metallic Compounds[Audio]
12/6, 10:00 a.m.	Dr. Matthias Troyer ETH, Zurich	Quantum Phase Transitions in Heisenberg Antiferromagnets
12/7, 10:00 a.m.	Dr. Sang-Wook Cheong Lucent Technologies, Rutgers University	Phase Separation and Percolation in Manganites[Audio]
12/7, 2:00 p.m.	Dr. Jeroen Van den Brink (ITP & University of Twente) Dr. Sashi Satpathy (ITP & University of Missouri) Dr. Daniil Khomskii (ITP & University of Groningen)	Manganites[Audio]
12/8, 10:00 a.m.	Dr. Tiruppattur Ramakrishnan ITP & Indian Institute of Science	Electronic Properties of Cuprate Superconductors in a Magnetic Field[Audio]
12/9, 12:15 p.m.	Dr. David Singh ITP & NRL	Magnetism in Ruthenates and a Colbaltate that is Not Magnetic[Audio]
12/10, 10:00 a.m.	Dr. Maxim Mostovoy ITP & University of Groningen	Charge Ordering, Spin-gap Opening and Frustration in NaV₂O₅[Audio]
12/13, 2:00 p.m.	Dr. Francisco Guinea ITP & Institute de Ciencia de Materiales, Spain	Phase Separation Near Magnetic Transitions[Audio]
12/14, 10:00 a.m.	Dr. Brian Maple UCSD	Non-Fermi Liquid Regimes in the Low Temperature Phase Diagrams of the Systems U_1-x M_xPd₂Al₃ (M=Y,Th)[Audio]
12/14, 2:00 p.m.	Dr. Alexander Lichtenstein ITP & University of Nijmegen	Dynamical Mean Field Theory of Spin and Charge Order in Cuprates
12/16, 12:15 p.m.	Dr. Daniel Cox ITP & UC Davis	Electron Transfer via Magnetic Bound States in Biological Molecules[Audio]

last modified 12/12/99 dme