Nuclear magnetic resonance study of (Y1−xRx)2Co14B compounds (R Gd, Tb)
| Autor: | Tadamiki Hihara, Takashi Ohno, T. Myojin, T. Ushida, M. Hayashi, A. Tsujimura, Y. Imaeda |
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| Rok vydání: | 1993 |
| Předmět: |
Coupling constant
Field (physics) Chemistry Mechanical Engineering Metals and Alloys Ferromagnetic resonance Magnetization Nuclear magnetic resonance Mechanics of Materials Materials Chemistry Condensed Matter::Strongly Correlated Electrons Spin (physics) Hyperfine structure Two-dimensional nuclear magnetic resonance spectroscopy Phase diagram |
| Zdroj: | Journal of Alloys and Compounds. 193:252-255 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/0925-8388(93)90362-q |
| Popis: | Influence of the Gd spin on the Co hyperfine field has been studied by 59Co nuclear magnetic resonance (NMR) in (Y1−xGdx)2Co14B compounds. It is shown that the hyperfine coupling constants from the Gd spin for 8j1 and 8j2 sites are negative while those for 16k1 and 16k2 sites are positive. The dependence of the spin orientation temperature on the non-magnetic Y concentration in (Y1−xTbx)2Co14B is also investigated by magnetization and 59Co NMR measurements. A spin phase diagram for this compound is proposed. |
| Databáze: | OpenAIRE |
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