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BEGIN:VEVENT
DTSTAMP:20261018T170721Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20070424T191500Z
DTEND:20070424T210000Z
UID:event70@bu.edu
URL:http://physics.bu.edu/internal/events/show/70
SUMMARY:A Tale of Two Fluids: From the Kondo Lattice to Underdoped Cuprates
DESCRIPTION:Featuring David Pines\, Physics Dept. UC Davis and UIUC\, and M
	PA Division\, Los Alamos\nHosted by: David Campbell\n\nPart of the Physics 
	Department Colloquia Series.\n\nIn Kondo Lattice materials\, new states of 
	matter emerge at low temperatures as a lattice of localized spins interacts
	 with the spins carried by conduction electrons. These states include heavy
	 electron Kondo liquids that exhibit non-Landau scaling behavior\, d-wave s
	uperconductors\, antiferromagnets\, and quantum critical matter. Quite rema
	rkably one encounters nearly the same states on the underdoped side of the 
	high temperature superconductors—except that in place of a Kondo liquid t
	hat becomes superconducting at low temperatures\, one finds still another k
	ind of exotic electronic matter- pseudogap matter—out of which supercondu
	ctivity grows at comparatively high temperatures. In this colloquium I revi
	ew our present understanding of both classes of materials\, what makes them
	 similar\, and what makes them different. I show that both contain at high 
	temperatures two distinct fluids—a spin liquid of localized spins and a c
	onduction electron Fermi liquid—and that in both the magnetic coupling be
	tween these localized spins sets the characteristic energy scale for their 
	exotic normal state behavior\, which differs because of the quite different
	 magnitudes of that interaction.
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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