| Photo-induced effect in the layered perovskite manganite La_(1.2)Sr_(1.8)Mn_(1.8)Co_(0.2)O_7 |
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| 作者姓名： | ZHANG Ruili DAI Jianming SONG Wenhai MA Yongqing YANG Jie & SUN Yuping . Key Laboratory of Internal Friction and Defects in Solids Institute of Solid State Physics Chinese Academy of Sciences Hefei China . National Laboratory of Solid State Microstructures Nanjing University Nanjing China Correspondence should be addressed to Zhang Ruili |
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| 基金项目： | 国家自然科学基金，安徽省自然科学基金，the Fundamental Bureau |
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| 摘 要： | 1IntroductionWiththediscoveryofcolossalmagnetoresistance(CMR)effectinmanganites,hole-dopingperovskitemanganiteswithunusualelectronictransportandmagneticpropertieshaveattractedconsiderableattention.Thesepropertiesresultfromanintrinsicinteractionbetweencharge,spin,orbitalandlatticedegreesoffreedomthatarestronglycoupledtoeachother1—6].DoubleexchangemodelcombinedwithJohn-Tellereffectwasusedtoexplainthesepropertiespartly7—9].InordertogetbetterunderstandingofthemechanismofCMReffect,externals…
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Photo-induced effect in the layered perovskite manganite La1.2Sr1.8Mn1.8Co0.2O7 |
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| ZHANG Ruili,DAI Jianming,SONG Wenhai,MA Yongqing,YANG Jie & SUN Yuping, . Key Laboratory of Internal Friction and Defects in Solids,Institute of Solid State Physics,Chinese Academy of Sciences,Hefei ,China, . National Laboratory of Solid State Microstructures,Nanjing University,Nanjing ,China Correspondence should be addressed to Zhang Ruili.Photo-induced effect in the layered perovskite manganite La_(1.2)Sr_(1.8)Mn_(1.8)Co_(0.2)O_7[J].Science in China(Physics Astronomy),2004,47(1). |
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| Authors: | ZHANG Ruili DAI Jianming SONG Wenhai Ma Yongqing YANG Jie SUN Yuping |
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| Institution: | 1. Key Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
2. Key Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008, China |
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| Abstract: | It is helpful to study the photo-induced effect in the perovskite manganites not only for elucidating the mechanism of colossal magnetoresistance (CMR) effect but also for potential applications in technology. The laser-induced effect in the Co doping layered perovskite manganites La1.2Sr1.8Mn1.8Co0.2O7 is studied in this paper and the obtained results are also compared with that gained in the Nd-doping manganites with cubic perovskite structure. |
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| Keywords: | laser layered perovskite manganites photo-induced effect spin-state |
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