物理学报2012，Vol.61Issue(1)：459-463,5.
结构相变对Fe掺杂TiO_2薄膜室温铁磁性的影响
Influence of structural phase transition on Ferromagnetism in Fe-doped TiO_2 thin films
摘要
Abstract
Fe doped TiO_2 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 TiO_2 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 TiO_2 film with Fe concentration 7%.With the increase of Fe concentration,the crystal structure of TiO_2 film transforms gradually from anatase phase to rutile phases,and magnetism in the film weakened.The changes of crystal structure and crystallization in TiO_2 film resulting from Fe doping affect the change of ferromagnetism in the film.关键词
稀磁半导体/结构相变/铁磁性Key words
diluted magnetic semiconductor/structural phase transition/ferromagnetism分类
数理科学引用本文复制引用
顾建军,孙会元,刘力虎,岂云开,徐芹..结构相变对Fe掺杂TiO_2薄膜室温铁磁性的影响[J].物理学报,2012,61(1):459-463,5.基金项目
河北省自然科学基金 （）
河北民族师范学院博士基金 （）
河北省教育厅基金（批准号：Z2007422）资助的课题~~ （）
