Harvesting spin-orbit physics at interfaces
9th November 2023
Timing : 1:30 pm EST
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For a list of all talks at the NanoBio seminar Series Fall'23, see here
In these systems, typically multilayers of transition-metal ferromagnets and heavy materials (e.g., W, Pt, Ta, Bi2Se3, WTe2), interfacial spin-orbit coupling promotes a wealth of remarkable physical phenomena: the generation of spin-orbit torques, the interconversion between spin and charge currents, and the stabilization of topological magnetic skyrmions. The recent synthesis of novel classes of materials has profoundly enriched this vivid field of research by unlocking unforeseen forms of torques and magnetic interactions, thereby enhancing the functionalities of spin-orbitronic devices.
In this presentation, I 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 present standard phenomenological descriptions of these two effects, 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 and CuPt/CoPt(111) bilayers.
Dr. Aurelien Manchon
Professor of Physics
Interdisciplinary Center for Nanoscience of Marseille (CINaM)
Aix-Marseille University, France
Aurelien Manchon is a Professor of Physics at Aix-Marseille University at the Interdisciplinary Center for Nanoscience of Marseille (CINaM). His research focuses on the field of theoretical spintronics and aims at identifying novel mechanisms that can be used to operate spin-based devices. His research interest spans from spin-orbit coupled transport to chiral magnetism, antiferromagnets and ultrafast spin dynamics. Before joining Aix-Marseille University, he was an Assistant (2009-2015), and an Associate Professor (2015-2019) of Materials Science and Engineering at the King Abdullah University of Science and Technology (KAUST), in Saudi Arabia. He joined KAUST in 2009 after a postdoctoral fellowship at University of Missouri-Columbia and University of Arizona-Tuscon. He graduated from the Ecole Polytechnique, Palaiseau, France in 2004 and earned his PhD in Physics in 2007 from University Joseph Fourier and CEA/SPINTEC laboratory in France.
Professor of Physics
Interdisciplinary Center for Nanoscience of Marseille (CINaM)
Aix-Marseille University, France
Aurelien Manchon is a Professor of Physics at Aix-Marseille University at the Interdisciplinary Center for Nanoscience of Marseille (CINaM). His research focuses on the field of theoretical spintronics and aims at identifying novel mechanisms that can be used to operate spin-based devices. His research interest spans from spin-orbit coupled transport to chiral magnetism, antiferromagnets and ultrafast spin dynamics. Before joining Aix-Marseille University, he was an Assistant (2009-2015), and an Associate Professor (2015-2019) of Materials Science and Engineering at the King Abdullah University of Science and Technology (KAUST), in Saudi Arabia. He joined KAUST in 2009 after a postdoctoral fellowship at University of Missouri-Columbia and University of Arizona-Tuscon. He graduated from the Ecole Polytechnique, Palaiseau, France in 2004 and earned his PhD in Physics in 2007 from University Joseph Fourier and CEA/SPINTEC laboratory in France.