摘要
Fe/Sn-codoped In_(2)O_(3)powders and films are prepared by a vacuum annealing process and a pulsed laser deposition technique,respectively.The structural and magnetic properties of the samples are investigated.The obvious room-temperature ferromagnetism is observed in both(In_(0.92)Fe_(0.05)Sn_(0.03))_(2)O_(3)powders and films,but their magnetic behaviors are very different.The ferromagnetism of the vacuum-annealed powders is partially due to precipitated Fe_(3)O_(4)impurity.By contrast,the ferromagnetism of the films is intrinsic and does not originate from any magnetic impurity,as confirmed by the extensive x-ray absorption spectroscopy and magnetization studies.
作者
江凤仙
席识博
马荣荣
秦秀芳
樊晓晨
张敏刚
周俊琪
许小红
JIANG Feng-Xian;XI Shi-Bo;MA Rong-Rong;QIN Xiu-Fang;FAN Xiao-Chen;ZHANG Min-Gang;ZHOU Jun-Qi;XU Xiao-Hong(Key Laboratory of Magnetic Molecules and Magnetic Information Material(Ministry of Education),School of Chemistry and Materials Science,Shanxi Normal University,Linfen 041004;Beijing Synchrotron Radiation Facility,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049;School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024)
基金
the National Science Foundation for Distinguished Young Scholars of China(No 51025101)
the National Natural Science Foundation of China(Nos 11274214 and 61204097)
the Ministry of Education of China(IRT1156)
the Research Fund for the Doctoral Program of Higher Education(20121404110004)
the Youth Science Foundation of Shanxi Province(2011021021-2).
