Aurélien Manchon
Aix-Marseille University, France
地点:TencentMeeting: 838-816-189
时间:2022-03-11 16:00
This lecture will provide a theoretical perspective of the advancement of the fascinating field of spin-orbitronics, focusing on two emblematic mechanisms: the spin-orbit torque and the Dzyaloshinskii-Moriya interaction. I will examine what theory and materials modeling can tell us about these two effects, and what future research directions they open. I will first introduce key concepts in spintronics, such as spin currents and spintransfer torque, and show how spin-orbit coupling enables new physical effects of high interest for potential applications. I will present standard phenomenological descriptions of these two effects, spin-orbit torque and Dzyaloshinskii-Moriya interaction, determine the symmetry rules that govern them, and give a broad overview of the current state-of-the-art of the field from experimental and theoretical standpoints. Finally, I will explore how spin-orbitronics takes a completely new form in materials possessing low crystalline symmetries, such as Fe3GeTe2, CuPt/CoPt bilayers, and noncollinear antiferromagnets (e.g., Mn3Sn).
Aurélien Manchon is a Professor of Physics at Aix-Marseille University in the Interdisciplinary Center for Nanoscience of Marseille. He graduated from the École Polytechnique, Palaiseau, in 2004 and earned the Ph.D. in physics in 2007 from Université Joseph Fourier and SPINTEC lab in Grenoble, France. He was a postdoctoral fellow at University of Missouri-Columbia and University of Arizona, Tucson. He was an Assistant (2009-2015) and Associate Professor (2015-2019) of Materials Science and Engineering at King Abdullah University of Science and Technology, Saudi Arabia. His research focuses on theoretical spintronics and aims at identifying novel mechanisms that can be used to operate low-power, ultrafast, spin-based devices. His research interests include spin-orbit coupled transport, chiral magnetism, antiferromagnets, and ultrafast dynamics.