Spins meet electric dipoles: modelling, discoveries and perspectives

Main list: Physics and Astronomy Colloquia

Abstract

Dr Silvia Picozzi
CNR, Chieti

The discovery of novel properties, effects or phenomena in modern materials science is often driven by the quest for the coexistence and/or coupling of several functional properties into a single system. Within this framework, I will focus on the microscopic mechanisms leading to the interplay between spin and dipolar degrees of freedom, along with their theoretical modelling. I will first address the coupling of long-range magnetic and electric dipolar orders in multiferroics, in particular in electronic ferroelectrics, where the spin/charge/orbital order induces an electric polarization. Second, I will discuss (non-magnetic) ferroelectric semiconductors, where the spin-orbit interaction leads to a tight link between Rashba spin-splitting in the electronic structure, spin-texture and electric polarization. The common denominator is to achieve the electric-field control of magnetism and, therefore, the long-sought integration of spintronics with ferroelectricity.

  • Venue

    Physics Theatre C

  • Date

    October 18, 2019

  • Time

    From: 10h00 To: 11h00

  • Sponsor

    University of St Andrews
    The oldest university in Scotland, with international renown for both research and education of undergraduates and postgraduates.

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