Observation of antiferromagnetic interlayer exchange coupling in a Ga1-xMnxAs/GaAs:Be/Ga1-xMnxAs trilayer structure

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

doi:10.1103/PhysRevB.82.195205

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Observation of antiferromagnetic interlayer exchange coupling in a Ga1-xMnxAs/GaAs:Be/Ga1-xMnxAs trilayer structure

Leiner, J.;
Lee, H.;
Yoo, T.;
Lee, Sanghoon;
Kirby, B. J.;
외 4명

Citations

WEB OF SCIENCE

30

Citations

SCOPUS

29

초록

Interlayer exchange coupling (IEC) between two Ga0.95Mn0.05As layers separated by Be-doped GaAs spacers was investigated experimentally using magnetization, magnetotransport and neutron-scattering measurements, which all indicated the presence of robust antiferromagnetic IEC when the GaAs spacer is sufficiently thin. We argue that the observed behavior arises from a competition between the interlayer exchange field and magnetocrystalline anisotropy fields intrinsic to GaMnAs layers.

키워드

HETEROSTRUCTURES; MULTILAYERS

제목: Observation of antiferromagnetic interlayer exchange coupling in a Ga1-xMnxAs/GaAs:Be/Ga1-xMnxAs trilayer structure

저자: Leiner, J.; Lee, H.; Yoo, T.; Lee, Sanghoon; Kirby, B. J.; Tivakornsasithorn, K.; Liu, X.; Furdyna, J. K.; Dobrowolska, M.

DOI: 10.1103/PhysRevB.82.195205

발행일: 2010-11-16

유형: Article

저널명: Physical Review B

권: 82

호: 19