Femtosecond Laser Pulse Induced Magnetization Reversal of α-Gd23.1Fe71.9Co5.0
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- Hohlfeld J.
- Research Institute for Materials
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- Gerrits Th.
- Research Institute for Materials
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- Bilderbeek M.
- Research Institute for Materials
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- Awano H.
- Tsukuba Research Laboratory, Hitachi Maxell
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- Ohta N.
- Tsukuba Research Laboratory, Hitachi Maxell
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- Rasing Th.
- Research Institute for Materials
書誌事項
- タイトル別名
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- Femtosecond Laser Pulse Induced Magnetization Reversal of .ALPHA.-Gd23.1Fe71.9Co5.0.
- Femtosecond Laser Pulse Induced Magnetization Reversal of アルファ Gd23 1Fe71 9Co5 0
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抄録
Femtosecond laser pulse induced magnetization reversal of α-Gd23.1Fe71.9Co5.0 was investigated by time-resolved measurements of the polar Kerr-rotation. The dynamics is found to follow the Bloch-equation via a relaxation time that does not depend on temperature but strongly decreases with increasing excitation density. A minimum value of (190±40)ps was obtained for the highest applicable pump-fluence. Comparing the reversal dynamics to temperature induced variations of magnetization within a single domain state and to the magnetization dynamics measured in remanence, the different contributions of transient temperature and domain formation to the magnetic response are separated.
収録刊行物
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- 日本応用磁気学会誌
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日本応用磁気学会誌 25 (3-2), 202-205, 2001
公益社団法人 日本磁気学会
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詳細情報 詳細情報について
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- CRID
- 1390282680069678336
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- NII論文ID
- 110002810919
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- NII書誌ID
- AN0031390X
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- ISSN
- 18804004
- 02850192
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- NDL書誌ID
- 5737693
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
