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Vivek Amin

Vivek Amin is a UMD Postdoctoral Researcher in the Alternative Computing Group in the Nanoscale Device Characterization Division of the Physical Measurement Laboratory (PML). He received a B.S. in Electrical Engineering from The University of Texas at Austin and a Ph.D. in Physics from Texas A&M University. His doctoral research focused on the theoretical development of a novel imaging technique that measures spin textures using a scanned magnetic probe, and on how spin-orbit coupling affects thermoelectric properties in magnetic tunnel junctions. Vivek is working with Mark Stiles researching current-induced magnetization switching, specifically attempting to create new models of spin orbit torque in heavy metal/ferromagnetic bilayers.

Selected Publications

  • Large-tunneling anisotropic magneto-Seebeck effect in a CoPt/MgO/Pt tunnel junction, V. P. Amin, J. Zemen, J. Železný, T. Jungwirth, and J. Sinova, Physical Review B 90, 140406 (2014).
  • Experimental demonstration of scanned spin-precession microscopy, V. P. Bhallamudi, C. S. Wolfe, V. P. Amin, D. E. Labanowski, A. J. Berger, D. Stroud, J. Sinova, and P. C. Hammel, Physical Review Letters 111, 117201 (2013).
  • Detection of electrically modulated inverse spin hall effect in an Fe/GaAs microdevice, K. Olejnik, J. Wunderlich, A. C. Irvine, R. P. Campion, V. P. Amin, J. Sinova, and T. Jungwirth, Physical Review Letters 109, 076601 (2012).

Publications

Coherent spin pumping in a strongly coupled magnon-magnon hybrid system

Author(s)
Yi Li, Wei Cao, Vivek P. Amin, Zhizhi Zhang, Jonathan Gibbons, Joseph Sklenar, John Pearson, Paul M. Haney, Mark D. Stiles, William E. Bailey, Valentine Novosad, Axel Hoffmann, Wei Zhang
We have experimentally identified coherent spin pumping acting as a dampinglike coupling in the magnon-magnon hybrid modes of permalloy/yttrium iron garnet (Py

Anomalous spin–orbit torques in magnetic single-layer films

Author(s)
Wenrui Wang, Tao Wang, Vivek P. Amin, Yang Wang, Anil Radhakrishna, Angie Davidson, Shane Allen, Thomas J. Silva, Hendrik Ohldag, Davor Balzar, Barry L. Zink, Paul M. Haney, John Xiao, D.G. Cahill, Virginia O. Lorenz, Xin Fan
Spin-orbit interaction (SOI) couples charge and spin transport, enabling electrical control of magnetization, the foundation of next-generation spintronic

Intrinsic spin currents in ferromagnets

Author(s)
Vivek P. Amin, Junwen Li, Mark D. Stiles, Paul M. Haney
First principles calculations show that electric fields applied to ferromagnets generate spin currents flowing perpendicularly to the electric field. Reduced

Interface-generated spin currents

Author(s)
Vivek P. Amin, Jan Zemen, Mark D. Stiles
Transport calculations based on ab-initio band structures reveal large interface-generated spin currents at Co/Pt, Co/Cu, and Pt/Cu interfaces. These spin
Created August 28, 2019, Updated February 21, 2020