Chin. Phys. Lett.  2009, Vol. 26 Issue (11): 117503    DOI: 10.1088/0256-307X/26/11/117503
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Room-Temperature Anisotropic Ferromagnetism in Fe-Doped In2O3 Heteroepitaxial Films
XING Peng-Fei1, CHEN Yan-Xue1, TANG Min-Jian1, YAN Shi-Shen1, LIU Guo-Lei1, MEI Liang-Mo1, JIAO Jun1,2
1School of Physics and National Key Laboratory of Crystal Materials, Shandong University, Jinan 2501002Department of Physics, Portland State University, PO Box 751, Portland OR, 97207, U.S.A.
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XING Peng-Fei, CHEN Yan-Xue, TANG Min-Jian et al  2009 Chin. Phys. Lett. 26 117503
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Abstract Fe-doped In2O3 films are grown epitaxially on YSZ (100) substrates by pulsed laser deposition. The in-situ reflection high-energy electron diffraction, the atomic force microscopy, and the x-ray diffraction patterns show that the films have a well defined cubic structure epitaxially oriented in the (100) direction. Room temperature ferromagnetism is observed by an alternating gradient magnetometer. Strong perpendicular magnetic anisotropy with a remnant magnetization ratio of 0.83 and a coercivity of 2.5kOe is revealed. Both the structural and the magnetic measurements suggest that this ferromagnetism is an intrinsic property deriving from the spin-orbit coupling between the diluted Fe atoms.
Keywords: 75.30.Gw      75.50.Pp      75.30.-m      75.70.Ak     
Received: 19 February 2009      Published: 30 October 2009
PACS:  75.30.Gw (Magnetic anisotropy)  
  75.50.Pp (Magnetic semiconductors)  
  75.30.-m (Intrinsic properties of magnetically ordered materials)  
  75.70.Ak (Magnetic properties of monolayers and thin films)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/26/11/117503       OR      https://cpl.iphy.ac.cn/Y2009/V26/I11/117503
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XING Peng-Fei
CHEN Yan-Xue
TANG Min-Jian
YAN Shi-Shen
LIU Guo-Lei
MEI Liang-Mo
JIAO Jun
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