CMSP Seminar Series @ICTP Stasi Room Thursday 13 December 2:00 p.m. - Silvia PICOZZI

[CM Section]

ICTP Seminar Series in Condensed Matter and Statistical Physics
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KINDLY NOTE UNUSUAL HOUR (AFTERNOON)

Thursday 13 December at 2:00 p.m.

Luigi Stasi Seminar Room, first floor, ICTP Leonardo building
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Speaker: Silvia PICOZZI
CNR-SPIN, Univ. 'G. D'Annunzio, Chieti-Pescara

Title:Interplay Between Spin and Dipolar Degrees of Freedom

Abstract:
The discovery of novel properties, effects or microscopic mechanisms
in modern materials science is often driven by the quest for the coexistence
and/or interaction of several functional properties into a single compound.
Within this framework, by exploiting the cross-coupling between spin and
electric dipoles via spin-orbit coupling in ferroelectric 
semiconductors, I will
focus on the tight link between k-dependent spin-splitting in the electronic
structure, spin-texture and electric polarization. Based on density 
functional
simulations, I will show our theoretical predictions of a giant Rashba
spin-splitting in several materials (ranging from bulk GeTe to oxides), 
labeled
as Ferro-Electric Rashba Semi-Conductors (FERSC) - where the chirality
of the spin texture is one-to-one linked to polarization.