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SPIN-WAVE EXCITATIONS IN Gd AT LOW TEMPERATURES
http://hdl.handle.net/10258/753
http://hdl.handle.net/10258/753f828e2c5-0282-4c57-b40c-26b9d4797637
名前 / ファイル | ライセンス | アクション |
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kiyo38_rikou_pp37-58.pdf (1.4 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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公開日 | 2014-03-04 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | SPIN-WAVE EXCITATIONS IN Gd AT LOW TEMPERATURES | |||||||||||
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 | |||||||||||
アクセス権 | ||||||||||||
アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
著者 |
永田, 正一
× 永田, 正一× 宮崎, 雅年× 藤田, 英司× 戎, 修二
WEKO
197
× 山村, 秀美× 谷口, 哲 |
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室蘭工業大学研究者データベースへのリンク | ||||||||||||
戎 修二(EBISU Shuji) | ||||||||||||
http://rdsoran.muroran-it.ac.jp/html/100000219_ja.html | ||||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | It has been manifestly demonstrated that Gd is one of the best example to be realistically applied to the spin-wave theory of Heisenberg model for the localized magnetic moment. The magnetization of Gd has been measured in the temperature 4<T<310 K at a constant magnetic field of 6 kOe using a homemade vibrating sample magnetometer. We present an exact analysis of the spin-wave excitations for Gd. In the presence of an applied magnetic field, H, an energy gap exists in the spin-wave dispersion relation. As a consequence, the temperature dependence of the magnetization for ferromagnets must differ from the simple Bloch T³/² law. The low temperature magnetization per gram is found to obey the form: Δσ(T)/σ(0) = BZ(3/2,Tℊ/T)T³/² + CZ(5/2, Tℊ/T)T⁵/², where B and C are constants and Δσ(T) = σ(0) - σ(T). The modification factors Z(3/2, Tℊ/T) and Z(5/2, Tℊ/T) are the characteristic functions of T and the magnetic field, H. The spontaneous magnetization of ferromagnetic Gd follows BZ(3/2,Tℊ/T) T³/² relation (the modified Bloch T³/² law) with remarkable fidelity below 200 K. | |||||||||||
言語 | en | |||||||||||
書誌情報 |
ja : 室蘭工業大学研究報告. 理工編 en : Memoirs of the Muroran Institute of Technology. Science and engineering 巻 38, p. 37-58, 発行日 1988-11-10 |
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言語 | ja | |||||||||||
出版者 | 室蘭工業大学 | |||||||||||
論文ID(NAID) | ||||||||||||
関連タイプ | isIdenticalTo | |||||||||||
識別子タイプ | NAID | |||||||||||
関連識別子 | 40003627678 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 05802415 | |||||||||||
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収録物識別子タイプ | NCID | |||||||||||
収録物識別子 | AN00238225 | |||||||||||
権利 | ||||||||||||
言語 | ja | |||||||||||
権利情報 | © 1988 室蘭工業大学 | |||||||||||
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 | |||||||||||
フォーマット | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | application/pdf |