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R. G. Herb Condensed Matter Seminars

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Events During the Week of February 26th through March 5th, 2017

Monday, February 27th, 2017

No events scheduled

Tuesday, February 28th, 2017

No events scheduled

Wednesday, March 1st, 2017

No events scheduled

Thursday, March 2nd, 2017

Spiraling energy dispersion of arc states in Weyl semimetals
Time: 10:00 am
Place: Chamberlin 5310
Speaker: Anton Andreev, University of Washington
Abstract: Weyl semimetals are recently discovered materials in which the
valence and conduction bands touch at isolated points (Weyl nodes)
in the Brillouin zone. This gives rise to unusual electronic properties
of these materials. In particular, Weyl semimetals host peculiar
surface electron states whose Fermi lines have the form of open arcs.
I will show that static electric fields that are necessarily present
near the crystal surface result in a spiraling structure of Fermi arcs.
The winding angle of the spiral is controlled by the chirality of the Weyl
node and the magnitude of the surface potential. I will also discuss
magnetoresistance of a pn-junction in a Weyl semimetal.
Host: Levchenko
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Friday, March 3rd, 2017

No events scheduled
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