TY - JOUR
T1 - Observation of antiferromagnetic interlayer exchange coupling in a Ga 1-xMnxAs/GaAs:Be/Ga1-xMnx As trilayer structure
AU - Leiner, J.
AU - Lee, H.
AU - Yoo, T.
AU - Lee, Sanghoon
AU - Kirby, B. J.
AU - Tivakornsasithorn, K.
AU - Liu, X.
AU - Furdyna, J. K.
AU - Dobrowolska, M.
PY - 2010/11/16
Y1 - 2010/11/16
N2 - Interlayer exchange coupling (IEC) between two Ga0.95 Mn 0.05 As 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.
AB - Interlayer exchange coupling (IEC) between two Ga0.95 Mn 0.05 As 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.
UR - http://www.scopus.com/inward/record.url?scp=78649755372&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.195205
DO - 10.1103/PhysRevB.82.195205
M3 - Article
AN - SCOPUS:78649755372
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 19
M1 - 195205
ER -