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Electric-Field-Induced Magnetization Reversal in a Ferromagnet-Multiferroic Heterostructure

J. T. Heron, M. Trassin, K. Ashraf, M. Gajek, Q. He, S. Y. Yang, D. E. Nikonov, Y-H. Chu, S. Salahuddin, and R. Ramesh
Phys. Rev. Lett. 107, 217202 – Published 14 November 2011
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Abstract

A reversal of magnetization requiring only the application of an electric field can lead to low-power spintronic devices by eliminating conventional magnetic switching methods. Here we show a nonvolatile, room temperature magnetization reversal determined by an electric field in a ferromagnet-multiferroic system. The effect is reversible and mediated by an interfacial magnetic coupling dictated by the multiferroic. Such electric-field control of a magnetoelectric device demonstrates an avenue for next-generation, low-energy consumption spintronics.

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  • Received 7 July 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.217202

© 2011 American Physical Society

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Zigzag Polarization Straightens Magnetization Out

Published 14 November 2011

Ferroelectric domain patterns enable voltage-induced magnetization reversal in a magnetic alloy.

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Authors & Affiliations

J. T. Heron1, M. Trassin2,*, K. Ashraf3, M. Gajek2, Q. He2, S. Y. Yang2, D. E. Nikonov4, Y-H. Chu2,5, S. Salahuddin3, and R. Ramesh1,2,6

  • 1Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
  • 2Department of Physics, University of California, Berkeley, California 94720, USA
  • 3Department of Electrical Engineering and Computer Science, University of California, Berkeley, California 94720, USA
  • 4Components Research, Intel Corporation, Santa Clara, California 95052, USA
  • 5Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan, Republic of China
  • 6Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *mtrassin@berkeley.edu

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Issue

Vol. 107, Iss. 21 — 18 November 2011

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