Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs: Be spacer

J. Leiner, K. Tivakornsasithorn, X. Liu, J. K. Furdyna, M. Dobrowolska, B. J. Kirby, H. Lee, T. Yoo, Sang Hoon Lee

Research output: Contribution to journalArticle

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Abstract

Interlayer exchange coupling (IEC) between two Ga0.95Mn 0.05As layers separated by Be-doped GaAs spacers was investigated using magnetometry and neutron scattering measurements, which indicated the presence of robust antiferromagnetic IEC under certain conditions. We argue that the observed behavior arises from a competition between the IEC field and magnetocrystalline anisotropy fields intrinsic to GaMnAs layers. We estimate the magnitude of the IEC field and show how it decays with increasing temperature.

Original languageEnglish
Article number07C307
JournalJournal of Applied Physics
Volume109
Issue number7
DOIs
Publication statusPublished - 2011 Apr 1

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spacers
interlayers
magnetic measurement
neutron scattering
anisotropy
decay
estimates
scattering
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Leiner, J., Tivakornsasithorn, K., Liu, X., Furdyna, J. K., Dobrowolska, M., Kirby, B. J., ... Lee, S. H. (2011). Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs: Be spacer. Journal of Applied Physics, 109(7), [07C307]. https://doi.org/10.1063/1.3536669

Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs : Be spacer. / Leiner, J.; Tivakornsasithorn, K.; Liu, X.; Furdyna, J. K.; Dobrowolska, M.; Kirby, B. J.; Lee, H.; Yoo, T.; Lee, Sang Hoon.

In: Journal of Applied Physics, Vol. 109, No. 7, 07C307, 01.04.2011.

Research output: Contribution to journalArticle

Leiner, J, Tivakornsasithorn, K, Liu, X, Furdyna, JK, Dobrowolska, M, Kirby, BJ, Lee, H, Yoo, T & Lee, SH 2011, 'Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs: Be spacer', Journal of Applied Physics, vol. 109, no. 7, 07C307. https://doi.org/10.1063/1.3536669
Leiner J, Tivakornsasithorn K, Liu X, Furdyna JK, Dobrowolska M, Kirby BJ et al. Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs: Be spacer. Journal of Applied Physics. 2011 Apr 1;109(7). 07C307. https://doi.org/10.1063/1.3536669
Leiner, J. ; Tivakornsasithorn, K. ; Liu, X. ; Furdyna, J. K. ; Dobrowolska, M. ; Kirby, B. J. ; Lee, H. ; Yoo, T. ; Lee, Sang Hoon. / Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs : Be spacer. In: Journal of Applied Physics. 2011 ; Vol. 109, No. 7.
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