Photoinduced phase transition accompanied with the changes in magnetic properties |
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| Authors: | Yoshihiro Ogawaa Akira Oiwa Shin-Ya Koshihara Hiro-O Munekata |
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| Institution: | 1. Tokyo Institute of Technology , 2-12-1 Oh-okayama, Meguro-ku, Tokyo , 152-8551 , Japan;2. Kanagawa Academy of Science and Technology (KAST) , Takatsu-ku, Kawasaki , Kanagawa 213-0012 , Japan;3. E-mail: yogawa@o.cc.titech.ac.jp;4. Kanagawa Academy of Science and Technology (KAST) , Takatsu-ku, Kawasaki , Kanagawa 213-0012 , Japan;5. Kanagawa Academy of Science and Technology (KAST) , Takatsu-ku, Kawasaki , Kanagawa 213-0012 , Japan |
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| Abstract: | Recently, many studies have been started in search for materials which show a photoinduced phase transition (PIPT). In this work, we review two systems as typical examples of PIPT accompanied with changes in magnetic characteristics; (1) organo-metal complex Fe(2-pic)3]Cl2 EtOH (2-pic = 2-amino-methyl-pyridine) and (2) III-V based magnetic semiconductors (In1-x , Mn x )As. In the former case, we show several nonlinear characteristics in dynamical process of photoinduced spin state transition from low-spin to high-spin states. In the latter one, photocarrier-induced ferromagnetic order has been observed by both magnetic and transport measurements. |
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| Keywords: | Organo-metal complex III—V based magnetic semiconductor Magnetic properties Photo-induced phase transition |
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