Polarized Neutron Diffraction Study of CoS_2. I : Magnetic Moment Distribution of CoS_2
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概要
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The magnetic form factor of CoS_2 has been determined for 27 Bragg reflections by means of the polarized neutron diffraction technique. Fourier transform of the observd data shows that the magnetic moment is localized on cobalt atoms, and the moment distribution is aspherical around cobalt nuclei, and there is almost no magnetic moment delocalized in the region between cobalt atoms. The measured magnetic form factor agrees well with the calculated free ion form factor for Co^<2+>. The comparison between calculated and measured magnetic form factors shows that the magnetic moment delocalized in the region between cobalt atoms is very small, 0.01_3±0.02_4 (μ_B/CoS_2), compared with those in ferromagnetic 3d-transition metals. It shows further that 69±4% of the unpaired 3d electrons occupy e_g orbitals on the basis of the point charge model for the cubic crystalline field.
- 社団法人日本物理学会の論文
- 1976-04-15
著者
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Yamaguchi Yasuo
The Research Institute For Iron Steel And Other Metals Tohoku University
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WATANABE Hiroshi
The Research Institute for Iron, Steel and Other Metals, Tohoku University
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OHSAWA Akira
The Research Institute for Iron, Steel and Other Metals, Tohoku University
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ITOH Hiroki
Department of Physics, Faculty of Science, Hokkaido University
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Itoh Hiroki
Department Of Cardiology Tokyo Women's Medical University
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Yamaguchi Yasuo
The Research Institute For Iron Steel And Other Metals
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Itoh Hiroki
Department Of Physics Faculty Of Science Hokkaido University
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Ohsawa Akira
The Research Institute For Iron Steel And Other Metals Tohoku University
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Watanabe Hiroshi
The Research Institute For Iron Steel And Other Metals Tohoku University
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Watanabe Hiroshi
The Research Institute For Iron Steel And Other Metals
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