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VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20261016T195415Z
LAST-MODIFIED:20191029T182511Z
DTSTART:20191206T170000Z
DTEND:20191206T180000Z
UID:event2225@bu.edu
URL:http://physics.bu.edu/internal/events/show/2225
SUMMARY:The Unprecedented Thermoelectric Properties of Nodal Semimetals in 
	a Magnetic Field
DESCRIPTION:Featuring Brian Skinner\, Massachusetts Institute of Technology
	 and Ohio State University\nHosted by: Julian Ingham\n\nPart of the Condens
	ed Matter Theory Seminar Series.\n\nThe thermoelectric effect is a phenomen
	on in which a temperature difference applied to a conducting material induc
	es a voltage difference.  This effect has a range of important applications
	\, since it allows one to convert waste heat into useful electric power. In
	 conventional metals and semiconductors\, however\, the strength of the the
	rmoelectric effect faces fundamental limitations. In this talk I consider w
	hether these same limitations apply to the three-dimensional nodal semimeta
	ls. I show that\, surprisingly\, the electron-hole symmetry of nodal semime
	tals allows for a thermopower that grows without bound under the applicatio
	n of a strong magnetic field. This nonsaturating thermopower can be underst
	ood in terms of quantum Hall-like edge states\, and the corresponding therm
	oelectric Hall conductivity achieves a universal plateau value at large mag
	netic field.  These effects have been observed experimentally\, and they ma
	y enable the development of thermoelectric devices with record efficiency.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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