Photoinduced Resistance Change in an Oxygen-Deficient La 0.9 Sr 0.1 MnO 3-δ Thin Film
YAN Zi-Jie1, YUAN Xiao1, GAO Guo-Mian2, LUO Bing-Cheng2, JIN Ke-Xin2, CHEN Chang-Le2
1School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 2Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072
Photoinduced Resistance Change in an Oxygen-Deficient La 0.9 Sr 0.1 MnO 3-δ Thin Film
YAN Zi-Jie1;YUAN Xiao1;GAO Guo-Mian2;LUO Bing-Cheng2;JIN Ke-Xin2;CHEN Chang-Le2
1School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 2Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072
摘要Photoinduced resistance change (△R/R) in an oxygen-deficient La0.9Sr0.1MnO3-δ thin film is studied. At room temperature, the resistance change of about 30% and response time of about 75ns are observed under the illumination with a 532nm laser pulse of 7ns and light power of 750mW. It is also found that △R/R changes with the light power. The phenomena are explained in terms of the photoinduced hole carriers and localized insulator-to-metal transition, which may have potential applications in optoelectronic devices.
Abstract：Photoinduced resistance change (△R/R) in an oxygen-deficient La0.9Sr0.1MnO3-δ thin film is studied. At room temperature, the resistance change of about 30% and response time of about 75ns are observed under the illumination with a 532nm laser pulse of 7ns and light power of 750mW. It is also found that △R/R changes with the light power. The phenomena are explained in terms of the photoinduced hole carriers and localized insulator-to-metal transition, which may have potential applications in optoelectronic devices.
(Other topics in magnetic properties and materials)
引用本文:
YAN Zi-Jie;YUAN Xiao;GAO Guo-Mian;LUO Bing-Cheng;JIN Ke-Xin;CHEN Chang-Le. Photoinduced Resistance Change in an Oxygen-Deficient La 0.9 Sr 0.1 MnO 3-δ Thin Film[J]. 中国物理快报, 2007, 24(5): 1397-1399.
YAN Zi-Jie, YUAN Xiao, GAO Guo-Mian, LUO Bing-Cheng, JIN Ke-Xin, CHEN Chang-Le. Photoinduced Resistance Change in an Oxygen-Deficient La 0.9 Sr 0.1 MnO 3-δ Thin Film. Chin. Phys. Lett., 2007, 24(5): 1397-1399.
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