Excitation of Coherent Spin Waves in GdFeCo film(Magnetism and Spin Dynamics)
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概要
- 論文の詳細を見る
We present results of a time-resolved study of the ultrafast magnetic response of Gd_<23.1>Fe_<71.9>Co_<5.0> MAMMOS structures under conditions near actual read/write temperatures. An all-optical pump and probe method was used in which an intense (pump) light beam excited a medium due to ultrafast laser heating and a less intense (probe) beam monitored this photo-excited state through the magneto-optical Kerr effect. Our experiment clearly demonstrates that the photo-excitation effectively excites coherent spin waves in the magnetic material. Precession frequencies of several GHz and relaxation times in the nanosecond range were observed.
- 社団法人日本磁気学会の論文
- 2004-11-01
著者
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Kimel A.
Nsrim Institute University Of Nijmegen
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Rasing Th.
Nsrim Institute University Of Nijmegen
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Awano H
Hitachi Maxell Ltd. Yawara Jpn
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Awano H
Central Research Laboratory Hitachi Ltd.
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Awano Hiroyuki
Development And Technology Division Hitachi Maxell. Ltd.
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Ota N
Hitachi Maxell Ltd.
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Itoh A
Nihon University
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Tsukamoto A.
NSRIM Institute, University of Nijmegen
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Nakagawa K.
College of science and technology, Nihon University
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Itoh A.
College of science and technology, Nihon University
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Tsvetkov A.
NSRIM Institute, University of Nijmegen
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Awano H.
Tsukuba Research Laboratory, Hitachi Maxell Ltd.
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Ohta N.
Tsukuba Research Laboratory, Hitachi Maxell Ltd.
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Kirilyuk A.
NSRIM Institute, University of Nijmegen
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Tsukamoto A.
Nihon University
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Kirilyuk A.
Nsrim Institute University Of Nijmegen
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Awano H.
Tsukuba Research Laboratory Hitachi Maxell
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Kimel A.
NSRIM Institute, University of Nijmegen
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