Kolloquium Fiebig

Date

Jan 31, 2023

Time

10:00 AM - 11:30 AM

Speaker

Manfred Fiebig

Affiliation

ETH Zürich

Language

en

Main Topic

Physik

Host

Sandra Hamann

Description

"Magnetoelectric functionalities in inhomogeneous multiferroics" Multiferroics are materials simultaneously exhibiting magnetic and electric order. Requirements to "good multiferroics" are tough. They are supposed to have a spontaneous magnetization and a spontaneous polarization, preferably parallel to each other, with a strong magnetoelectric coupling between them to permit magnetization control by a small voltage rather than by an energy-intensive magnetic field. Because of all these requirements, multiferroic are typically described by a very complex set of order parameters ― complex enough to fulfil so many conditions at once. With the world's focus on electric-field-controlled magnetic order, it goes unnoticed that these degrees of freedom will permit many phenomena other than the coveted magnetoelectric coupling. In my talk, I will describe the quest for such phenomena in our group. They include a remarkable inversion of a domain configuration, a verification of post-Big-Bang processes in the universe and ― believe it or not ― a form of teleportation.

Last modified: Jan 31, 2023, 7:36:06 AM