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Physics Colloquium: Yasumasa Takano

August 31, 2018 @ 1:30 pm - 2:30 pm

Date: August 31, 2018

Time: 1:30-2:30pm

Location: PSB 160/161

Speaker: Yasumasa Takano (University of Florida)

Abstract: Spin triangles as building blocks of a new multiferroic

Multiferroics, materials in which both magnetic dipole moments and electric
dipoles are simultaneously ordered, are attracting interest of a growing number of
physicists and material scientists because of their fascinating properties and
potential applications in electronics.
The great majority of multiferroics identified or synthesized to date rely on the
Dzyaloshinskii-Moriya interaction–the asymmetric part of exchange interaction
that arises from spin-orbit coupling–or a structural change involving atomic
displacements. However, a totally new mechanism for multiferroicity, involving
spin triangles, have been proposed in the last decade by Bulaevskii and
collaborators and by Kamiya and Batista. I will describe a first realization of this
mechanism, in an organic molecular crystal, and explain underlying physics —
geometric frustration.


August 31, 2018
1:30 pm - 2:30 pm
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