Alexey V. Kimel

Date

3 March 2021

Host

Steve Johnson

Title

Ultrafast Magnetism – Terra Incognita Beyond the Classical Approximations

Abstract

While magnetism is the strongest quantum mechanical phenomenon, the modern description of magnetization dynamics relies on thermodynamics and the corresponding approximations. I will show that a femtosecond laser pulse is a unique stimulus in magnetism that pushes the magnetization dynamics into a counter-intuitive regime, where the classical approximations fail, heat does not destroy, but reverses magnetization and a flash of light can control the quantum forces as well as write magnetic bits at the edge of time

Zoom

external page https://ethz.zoom.us/j/96465954015