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SUMMARY:Recent Progress on the Phase Diagram of High Temperature Supercond
 uctors - Doug Bonn\, University of British Columbia
DTSTART:20080604T131500Z
DTEND:20080604T141500Z
UID:TALK12378@talks.cam.ac.uk
CONTACT:Michael Sutherland
DESCRIPTION:The appearance of superconductivity at high temperatures in a 
 family of layered cuprates has been a puzzle for more than twenty years.  
 One of their most distinguishing features is that they have a rather low\n
 density of free electrons\, relative to conventional metals\, which makes 
 their high critical temperatures even more remarkable. This low carrier de
 nsity is associated with many properties that differ enormously from conve
 ntional superconductors. I will review recent breakthroughs in the control
  over sample quality that have clarified the origin and consequences of lo
 w carrier density in YBCO\, including ARPES\, quantum osillations\, and su
 perfluid phase stiffness.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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