Hyperfine Fields in R_2Co_<17>
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概要
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Nuclear magnetic resonances of Co^<59> in R_2Co_<17>(R=Ce, Pr, Gd, Tb, Dy, Ho) are observed at liquid N_2 temperature. Hyperfine fields of Co^<59> are estimated using H_<Co>=(a+b N_<Co>)μ_<Co>+cN_Rμ_R(s) and compared experimentally, where a=-30.4kOe/μ_B, b=-7.8kOe/μ_B, N_<Co> and N_R are the number of Co and R neighbors, respectively, and μ_R(s) are magnetic moments of Co and R spins, respectively. Magnetic moments of R_2Co_<17> are also calculated, based on NMR observations, and shown to be in agreement with magnetic measurement data. It is pointed out that the Co magnetic moment surrounded locally by only cobalt atoms will be different from that of the other cobalt sites.
- 1976-12-15
著者
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Inomata Koichiro
Toshiba Research And Development Center Tokyo Shibaura Electric Co. Ltd.
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Inomata Koichiro
Toshiba Corporation Advanced Research Laboratory Research And Development Center
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