Lattice Modulation in the Long Period Ordered Alloys Studied by X-Ray Diffraction. IV : Pd_3Mn
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概要
- 論文の詳細を見る
Crystal structures of palladium-manganese alloys with compositions in the neighborhood of 25 at.% Mn have been studied, and it has been confirmed that the alloys with manganese less than about 24 at.% have the disordered F.C.C. lattice and those with the manganese contents ranging from about 24 to 30 at.% the one-dimensional long period ordered structure with M=2. Refinement of the structure analysis of the long period ordered alloy Pd_3Mn by X-ray diffraction has been made using single crystals, and periodic atom displacements of the heavy and light atoms have been found to occur with displacement directions similar to those in Cu_3Pd(α"), the magnitude of displacements being as small as 0.01 A for both the kinds of atom. These atom displacements are discussed in relation to the electron-atom ratio of the alloy. Neutron diffraction powder patterns have been observed, in order to see whether the nuclei in Pd_3Mn are displaced together with the electron clouds belonging to them or not, but no definite conclusion has been drawn.
- 東北大学の論文
著者
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IWASAKI HIROSHI
The Research Institute for Iron, Steel and Other Metals Tohoku University
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Iwasaki Hiroshi
The Research Institute For Iron Steel And Other Metals Tohoku University
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OGAWA Shiro
The Research Institute for Iron Steel and Other Metals, Tohoku University
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Ogawa Shiro
The Research Institute For Iron Steel And Other Metals
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OKAMURA Kiyohito
The Research Institute for Iron, Steel and Other Metals, Tohoku University
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Okamura Kiyohito
The Research Instituta For Iron Steel And Other Metals Tohoku University
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Ogawa Shiro
The Rcsearch Institute For Iron Steel And Other Metals Tohoku University
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Iwasaki Hiroshi
The Research Instisuse For Iron Steel And Other Metals Tohoku University
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