TY - JOUR
T1 - Effect of Optical Spin Injection on Ferromagnetically Coupled Mn Spins in the III-V Magnetic Alloy Semiconductor [Formula presented]
AU - Oiwa, A.
AU - Mitsumori, Y.
AU - Moriya, R.
AU - Słupinski, T.
AU - Munekata, H.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2002
Y1 - 2002
N2 - We report on the new type of photoinduced magnetization in ferromagnetic [Formula presented] thin films. Optically generated spin-polarized holes change the orientation of ferromagnetically coupled Mn spins and cause a large change in magnetization, being [Formula presented] of the saturation magnetization, without the application of a magnetic field. The memorization effect has also been found as a trace after the photoinduced magnetization. The observed results suggest that a small amount of nonequilibrium carrier spins can cause collective rotation of Mn spins presumably through the [Formula presented] exchange interaction.
AB - We report on the new type of photoinduced magnetization in ferromagnetic [Formula presented] thin films. Optically generated spin-polarized holes change the orientation of ferromagnetically coupled Mn spins and cause a large change in magnetization, being [Formula presented] of the saturation magnetization, without the application of a magnetic field. The memorization effect has also been found as a trace after the photoinduced magnetization. The observed results suggest that a small amount of nonequilibrium carrier spins can cause collective rotation of Mn spins presumably through the [Formula presented] exchange interaction.
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U2 - 10.1103/PhysRevLett.88.137202
DO - 10.1103/PhysRevLett.88.137202
M3 - Article
AN - SCOPUS:85038335804
SN - 0031-9007
VL - 88
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
ER -