University of Toronto
Physics Department
Quantum Optics and Condensed Matter
University of Toronto
Physics Department
Quantum Optics and Condensed Matter
| Speaker : | PROFESSOR PETER SCHIFFER Department of Physics University of Notre Dame Notre Dame, Indiana |
| Topic : | GEOMETRICAL FRUSTRATION IN MAGNETS: COMMON BEHAVIOR AND UNIQUE GROUND STATES |
| Time : | Friday, October 23, 1998 at 2:00 p.m. (NOTE: SPECIAL DATE AND TIME) |
| Place : | Room 408, Burton Tower 60 St. George Street / 255 Huron Street |
Abstract
Geometrically frustrated antiferromagnets display anomalous low temperature behavior not observed in other magnetic materials. This common behavior will be discussed in terms of a simple model. Detailed data will be presented for one such magnet, gadolinium gallium garnet, which displays a spin-glass-like transition in the limit of low disorder and a three dimensional spin liquid state and a long-range-ordered antiferromagnetic ground state induced by applied magnetic field.
Contact: Dr. Aephraim Steinberg
(416-978-0713)
See http://www.physics.utoronto.ca/~qocmp