Interfacial Structure of Manganite Superlattice
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概要
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The interfacial atomic mixing in a perovskite type manganese oxide superlattice is studied. A superlattice made of antiferromagnetic insulator Pr0.5Ca0.5MnO3 (PCMO) and ferromagnetic metal La0.5Sr0.5MnO3 (LSMO) on a (011) surface of perovskite structured substrate is reported to have ferromagnetic PCMO layers, which implies the heterojunction affects the electronic and magnetic structure. We performed a surface x-ray diffraction measurement in order to clarify the origin of the interface effect on the electron system. Our structural observation reveals that the chemical interface between PCMO and LSMO layers has one monolayer of atomic mixing, which accounts for a part of the interfacial effects.
- 2011-07-15
著者
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Arima Taka-hisa
Institute Of Materials Science University Of Tsukuba
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Kimura Tsuyoshi
Division Of Biofunctional Molecules Institute Of Biomaterials And Bioengineering Tokyo Medical And D
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Tokura Yoshinori
Cross-correlated Materials Research Group (cmrg) And Correlated Electron Research Group (cerg) Riken
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Kawasaki Masashi
Cross-correlated Materials Research Group (cmrg) And Correlated Electron Research Group (cerg) Riken
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Tokura Yoshinori
Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG), Advanced Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
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Arima Taka-hisa
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Okuyama Daisuke
Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG), Advanced Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
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Yamasaki Yoshihiro
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Nakamura Masao
Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG), Advanced Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
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Wakabayashi Yusuke
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Wakabayashi Yusuke
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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Kimura Tsuyoshi
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Kawasaki Masashi
Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG), Advanced Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
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