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锰位铁掺杂La0.67Sr0.33FexMn1-xO3薄膜的光诱导效应

唐 晶 陈长乐 金克新 赵省贵

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锰位铁掺杂La0.67Sr0.33FexMn1-xO3薄膜的光诱导效应

唐 晶, 陈长乐, 金克新, 赵省贵

Photo-induced effect of Mn site Fe doping in La0.67Sr0.33FexMn1-xO3 thin films

Tang Jing, Chen Chang-Le, Jin Ke-Xin, Zhao Sheng-Gui
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  • 分别采用溶胶-凝胶法和脉冲激光沉积的方法制备了La067Sr033FexMn1-xO3(x=0, 005, 010, 015)系列块材和薄膜,研究了Fe部分替代对La067Sr033FexMn1-xO3薄膜
    The compounds and films of La067Sr033FexMn1-xO3(x=0, 005, 010, 015) were prepared by the sol-gel technique and pulsed laser deposition method, respectively. The effect of Fe doping on the transport and photo-induced properties of La067Sr033FexMn1-xO3 film was investigated. Experimental results indicate that the Fe doping lowers the insulator-metal transition temperature, but increases the resistance. The photo-induced relative change in resistance increases initially with increasing temperature, then followed by a decrease.The maximum value of the relative change in resistance increases with increasing x, it reaching 38% when x =015 The intriguing mechanism of photo-induced effect on the resistance was discussed in connection with lattice effect.
    • 基金项目: 国家自然科学基金(批准号:50331040,60171034,50702046)资助的课题.
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  • 文章访问数:  6358
  • PDF下载量:  944
  • 被引次数: 0
出版历程
  • 收稿日期:  2007-05-24
  • 修回日期:  2007-06-25
  • 刊出日期:  2008-01-05

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