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Composite Magnetoelectrics by N Sun, S Priya, G Srinivasan

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12

Progress toward magnetoelectric spintronics

T. Nan,  and N.X. Sun     Northeastern University, Boston, MA, USA

Abstract

Ferromagnetic materials can be used for information storage because they have bistable states that can be seen as “1” and “0.” In magnetic-based memory devices such as magnetic tapes, magnetic hard drives, and magnetic random access memory, information is stored by switching the magnetic state using a magnetic field that is generated by electric currents. Such a field should, however, be larger enough to overcome the coercive field of the materials and thus consumes a large amount of power. Although the spin transfer torque generated by the spin current lowers the current requirement of switching one bit by orders of magnitude, ...

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