Concentration Dependence of Photo-Induced Magnetization in Diluted Magnetic Semiconductor Cd1-xMnxTe |
| Y. Yamaguchi, H. Kawai and T. Sato Department of Instrumentation Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama-shi, Kanagawa, Japan |
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| The photo-induced decrease in magnetization ΔMphoto was observed in Cd1-xMnxTe (0.25 < x < 0.42) under unpolarized light illumination whose photon energy is smaller than the band gap of the sample. The photo-induced magnetization decreases with increasing Mn content through Mn2+-Mn2+ antiferromagnetic interaction, which supports our idea for origin of it based on the flipping of Mn spins in the bound magnetic polarons accompanied by the spin-flip Raman scattering. |
| DOI: 10.12693/APhysPolA.91.479 PACS numbers: 75.50.Lk, 75.50.Pp |