High-Resolution Transmission Electron Microscopy of Commensurate Modulation in Bi_2Sr_2CoO_y
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概要
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The modulated structure of Bi_2Sr_2CoO_y was directly observed by high-resolution electron microscopy. The modulation periodicity is four times commensurate with the tetragonal subcell, as was pointed out by Tarascon et al. (to be published in Phys. Rev. B), while the average structure is identical to that of compositionally analogous superconductor Bi_2Sr_2CuO_y which has an incommensurate modulation. Some of the weak satellite reflections appearing in the a^*- b^* diffraction pattern are, however, incompatible with the body-centered orthorhombic symmetry proposed by Tarascon et al., suggesting that weak additional modifications are induced in the structure.
- 社団法人応用物理学会の論文
- 1989-11-20
著者
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MATSUI Yoshio
National Institute for Research in Inorganic Materials
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KISHIO Kohji
Department of Superconductivity, Graduate School of Engineering, University of Tokyo
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HASEGAWA Tetsuya
Department of Management and Information Science, Kyushu School of Engineering, Kinki University
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Kishio Kohji
Department Of Industrial Chemistry University Of Tokyo
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Kishio Kohji
Department Of Applied Chemistry Faculty Of Engineering University Of Tokyo
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IKEDA Shozo
National Research Institute for Metals, Tsukuba Laboratories
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Ikeda Shozo
National Research Institute For Metals Tsukuba Laboratories
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Ikeda Shozo
National Nesearch Institute For Metals
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Tomioka Yasuhide
Department Of Industrial Chemistry University Of Tokyo
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Hasegawa Tetsuya
Department Of Chemistry The University Of Tokyo
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Matsui Yoshio
National Institute For Materials Science
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Hasegawa Tetsuya
Department Of Chemistry Graduate School Of Science The University Of Tokyo
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Hasegawa Tetsuya
Department Of Applied Chemistry Himeji Institute Of Technology
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