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[磁学国家重点实验室学术报告] Putting Magnetic Vortices to Work in Spintronics
时间: 2019年12月11日 10:30
地点: 中科院物理所M楼 253会议室
报告人: Prof. Yaroslav Tserkovnyak

Department of Physics and Astronomy, University of California Los Angeles, USA

报告摘要:

Magnetic vortices in thin (anti)ferromagnetic films can realize mobile objects, which can be injected, manipulated, and detected by electrical currents. We develop a nonequilibrium thermodynamic perspective on the emergent topological hydrodynamics of vorticity, as a new paradigm for yielding spintronic functionality. A flow of vorticity injected across a magnetic strip, which can be controlled by the interfacial spin torques, builds up a magnetic winding density along the strip, which is akin to charging a capacitor by an impinging electrical flow. We thus show how a simple insulating magnetic strip can realize an effective RC circuit for vorticity transport and discuss how it can be used for (topological) energy storage.

报告人简介

Originally from Ukraine, earned a Ph.D. in physics at Harvard University in 2003. Following a stint as a Harvard Junior Fellow, he has been on faculty at the University of California, Los Angeles, since 2006 (tenured in 2009, full professor 2013). His main interests are in the theory of quantum transport and nonequilibrium dynamics in low-dimensional electron systems, with a focus on spin and topology.

联系人:于国强 (82649215),孙阳(82648080)


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