Temperature Dependence of the Spin-Wave Spectrum of Yttrium Iron Garnet
The temperature dependence of the exchange constant D in the equation of the spin-wave spectrum has been measured from 4.2°K–500°K in single crystals of very pure yttrium iron garnet. The results are compared,with good agreement up to 325°K, to predictions based on an extension of the random phase a...
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| Veröffentlicht in: | Journal of applied physics 1961-03, Vol.32 (3), p.S167-S168 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The temperature dependence of the exchange constant D in the equation of the spin-wave spectrum has been measured from 4.2°K–500°K in single crystals of very pure yttrium iron garnet. The results are compared,with good agreement up to 325°K, to predictions based on an extension of the random phase approximation to a ferrimagnet. |
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| ISSN: | 0021-8979 1089-7550 |
| DOI: | 10.1063/1.2000390 |