University
of Toronto
Physics Department
Quantum Optics and Condensed Matter
MONDAY SEMINAR
University
of Toronto
| Speaker : | DR. ROB HILL
Department of Physics University of Toronto |
| Topic : | ARE HIGH Tc SUPERCONDUCTORS HOST TO A NEW STATE OF MATTER |
| Time : | Monday, November 13, 2000 at 12:10 p.m. |
| Place : | Room MP408, Burton Tower 60 St. George Street / 255 Huron Street |
Abstract
Of fundamental importance to understanding the physics of high-temperature
superconductors is the description of the underlying groundstate.
This starting point,
on which any theory must base itself, is at the heart of one of the
major debates in condensed matter physics. Put succinctly the question
is this: are these materials metals once they have been stripped
of their superconductivity?
In this talk I present data from charge and thermal transport measurements
in these materials. These results show unequivocally that the groundstate
in the absence of superconductivity in certain high-temperature superconductors
is NOT metallic. Whether this behaviour is generic remains an open
question, but nevertheless promises a controversial future for this continued
debate.
Local Host: Prof.
Louis Taillefer
(416-978-7868)