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Determination of Exchange Integrals J_1 and J_2 and Magnetic Surface-Anisotropy Energy in EuS from Standing-Spin-Wave Resonance(Physics)
http://hdl.handle.net/10097/27879
http://hdl.handle.net/10097/278795e661e88-46c8-4aa2-adeb-3771ba4b37fa
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004198357.pdf (77.7 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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| 公開日 | 2008-05-02 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Determination of Exchange Integrals J_1 and J_2 and Magnetic Surface-Anisotropy Energy in EuS from Standing-Spin-Wave Resonance(Physics) | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||
| 著者 |
SCHWOB, Peter K.
× SCHWOB, Peter K.
× TACHIKI, M.
× EVERETT, Glen E.
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The standing-spin-wave absorption spectrum in thin EuS films has been measured in the temperature interval 1.3-4.2 K. The dependence of the magnetization on temperature has been determined from the ferromagnetic-resonance field and compared with spin-wave theory. The results are well described by the exchange-parameter combination (J_1+J_2)/k_B=(0.096±0.003) K. The temperature dependence of the exchange stiffness parameter D(T) has been calculated including the contribution of a nonzero internal field. The experimental results have been analyzed taking the surface boundary conditions into account and correcting for the temperature and field dependence of H_1. The results show that the apparent temperature dependence of D(T) arises almost entirely from the surface-anisotropy energy. The small observed variation ΔD(T)/D_0 has been analyzed yielding J_2/J_1=-0.57±0.05. The results, expressed as J_1/K_B=(0.214±0.026) K, J_2/k_B=-(0.122±0.025) K are in essential agreement with the inelastic-neutron-scattering determination of Passell et al. but in marked disagreement with Swendsen's Green's-function theory and its application to the calculation of the ferromagnetic and paramagnetic Curie temperature. A comparison with other experimental determinations of J_1 and J_2 is made. | |||||||||||
| 書誌情報 |
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 巻 26, p. 351-351, 発行日 1976 |
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| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 00408808 | |||||||||||
| 書誌レコードID | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA00836167 | |||||||||||
| フォーマット | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | application/pdf | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | Tohoku University | |||||||||||
| 資源タイプ | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | 紀要類(bulletin) | |||||||||||
| 登録日 | ||||||||||||
| 日付 | 2008-05-02 | |||||||||||
| 日付タイプ | Created | |||||||||||
| 公開日（投稿完了日） | ||||||||||||
| 日付 | 2008-05-02 | |||||||||||
| 日付タイプ | Created | |||||||||||
| 発行日 | ||||||||||||
| 日付 | 1976 | |||||||||||
| 日付タイプ | Created | |||||||||||
| フォーマット | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | 77672 bytes | |||||||||||
| 更新日 | ||||||||||||
| 日付 | 2010-01-27 | |||||||||||
| 日付タイプ | Created | |||||||||||
