Gerhard Ertl Lecture & Award

The Ertl Lecture Award was established in 2008 by the three Berlin universities (Humboldt University, Technical University and Free University) and the Fritz Haber Institute of the Max Planck Society and is awarded once a year. It commemorates former FHI Director Gerhard Ertl's Nobel Prize in Chemistry, which he received in 2007. The prize honours outstanding personalities and researchers in the field of catalysis where Ertl carried out exceptional research for many decades. The prize, sponsored by BASF, includes a one-week research stay at the participating Berlin institutions and a keynote lecture. The winner is typically announced in Spring, the lecture takes place around the December 10th, the anniversary of Ertl's Nobel Prize reception.

Terahertz spin dynamics in Mn2Au driven by the Neel spin-orbit torque

• PC Online Talk
• Date: Jun 25, 2020
• Time: 03:00 PM (Local Time Germany)
• Speaker: Dr. Alexander Chekhov
• FHI Department PC

Neel spin-orbit torque (NSOT) is a novel tool for spin manipulation in antiferromagnets with special symmetry (CuMnAs, Mn₂Au). As shown experimentally, application of current through such materials can lead to switching of the Neel vector. With clear opportunity of high-speed control of antiferromagnetic ordering, there were yet no investigations of NSOT time-dynamics in the terahertz range.This talk will present our recent results in measuring ultrafast spin dynamics in Mn₂Au following application of free-space terahertz pulses. The data indicates that the THz-induced NSOT acts on Mn₂Au spins and launches an 0.6 THz antiferromagnetic resonance mode. [more]