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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260826T124442Z
LAST-MODIFIED:20171023T193234Z
DTSTART:20171027T160000Z
DTEND:20171027T173000Z
UID:event1835@bu.edu
URL:http://physics.bu.edu/internal/events/show/1835
SUMMARY:"Putting hydrodynamic into solid state"
DESCRIPTION:Featuring Kin Chung Fong\, Raytheon BBN Technologies and Harvar
	d University\nHosted by: Scott Bunch\n\nPart of the Condensed Matter Theory
	 Seminar Series.\n\nDespite of the strong Coulomb interaction\, electrons i
	n simple metal behave as a non-interacting Fermi gas with long-lived quasi-
	particle excitation. However\, weak screening near the charge neutrality po
	int of the massless Dirac fermions in graphene can lead to a new collective
	 behavior described by hydrodynamics. By listening to the Johnson noise of 
	the electrons\, we are able to probe simultaneously the thermal and electri
	cal transport of the Dirac fluid and observe how it departs from Fermi liqu
	id physics. At high temperature near the neutrality point\, we find a stron
	g enhancement of the thermal conductivity and breakdown of Wiedemann-Franz 
	law in graphene. This is attributed to the non-degenerate electrons and hol
	es forming a strongly coupled Dirac fluid.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:TENTATIVE
CLASS:PUBLIC
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