A technique for micromagnetic simulation of the magnetoelectric (ME) effect in Cr2O3 based structures has been developed. It has been observed that the microscopic ME susceptibility differs significantly from the experimentally measured values. The deviation between the two susceptibilities becomes more prominent near the Curie temperature, affecting the operation of the device at room temperature. A fully electric field controlled ME switching element has been proposed for use at technologically interesting densities: it employs quantum mechanical exchange at the boundaries instead of the applied magnetic field needed in traditional switching schemes. After establishing temperature dependent physics-based parameters, switching performances have been studied for different temperatures, applied electric fields, and Cr2O3 cross-sections. It has been found that our proposed use of quantum mechanical exchange favors reduced electric field operation and enhanced scalability while retaining reliable thermal stability.
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A fully electric field driven scalable magnetoelectric switching element
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30 April 2018
Research Article|
May 01 2018
A fully electric field driven scalable magnetoelectric switching element
R. Ahmed
;
R. Ahmed
a)
Department of Electrical and Computer Engineering, University of Minnesota
, Minneapolis, Minnesota 55455, USA
a)Author to whom correspondence should be addressed: ahmed519@umn.edu
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R. H. Victora
R. H. Victora
Department of Electrical and Computer Engineering, University of Minnesota
, Minneapolis, Minnesota 55455, USA
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a)Author to whom correspondence should be addressed: ahmed519@umn.edu
Appl. Phys. Lett. 112, 182401 (2018)
Article history
Received:
January 19 2018
Accepted:
March 30 2018
Citation
R. Ahmed, R. H. Victora; A fully electric field driven scalable magnetoelectric switching element. Appl. Phys. Lett. 30 April 2018; 112 (18): 182401. https://doi.org/10.1063/1.5023003
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