Modeling temperature dependent exchange bias in systems with magnetoelectric chromia

Rizvi Ahmed, R. H. Victora

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Exchange bias in a magnetoelectric Cr2O3/ferromagnet system at finite temperature, based on the formation of a domain wall in Cr2O3, has been investigated using Monte Carlo simulation. It has been shown that the calculation of the exchange bias based on domain wall formation yields a more realistic value than that calculated using interfacial exchange coupling between Cr2O3 and the adjacent ferromagnet. Possible shortcoming of the magnetoelectric effect in setting the switchable exchange bias in the low temperature regime has also been demonstrated based on an energy threshold requirement. Specifically, it has been found that the magnetoelectric effect becomes intrinsically less effective in switching the exchange bias at low temperature, thus making the applicability of the system limited to only a certain temperature range.

Original languageEnglish (US)
Article number055817
JournalAIP Advances
Volume7
Issue number5
DOIs
StatePublished - May 1 2017

Bibliographical note

Funding Information:
The authors would like to thank C. Binek for valuable information pertinent to the work. This work was supported by C-SPIN, one of six centers of STARnet, a Semiconductor Research Corporation program sponsored by MARCO and DARPA

Publisher Copyright:
© 2017 Author(s).

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

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