%0 Journal Article
%T Influence of structural phase transition on Ferromagnetism in Fe-doped TiO2 thin films<br>结构相变对Fe掺杂TiO2薄膜室温铁磁性的影响
%A Gu Jian-Jun
%A Sun Hui-Yuan
%A Liu Li-Hu
%A Qi Yun-Kai
%A Xu Qin
%A <br>顾建军
%A 孙会元
%A 刘力虎
%A 岂云开
%A 徐芹
%J 物理学报
%D 2012
%I 
%X Fe doped TiO2 films are deposited on glass substrates using dc magnetron sputtering. The crystal structures and the magnetic properties of these films are studied. Room temperature ferromagnetism is observed in each of all the Fe doped TiO2 films. The source of magnetism is related to an exchange interaction between the transition-metal (Fe) ions and localized strapped holes. The maximal magnetization is observed in a TiO2 film with Fe concentration 7%. With the increase of Fe concentration, the crystal structure of TiO2 film transforms gradually from anatase phase to rutile phases, and magnetism in the film weakened. The changes of crystal structure and crystallization in TiO2 film resulting from Fe doping affect the change of ferromagnetism in the film.
%K diluted magnetic semiconductor
%K structural phase transition
%K ferromagnetism<br>稀磁半导体
%K 结构相变
%K 铁磁性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9903A07B9322879A023B9452AA64BC7C&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=CA4FD0336C81A37A&sid=0BCD86F73009ACFF&eid=0BCD86F73009ACFF&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=24