Real-time Detection of Magnetic Vortex Dynamics by Using Tunneling Magnetoresistance Effect
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- Kasai S.
- Institute for Chemical Research, Kyoto Univ.
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- Nakano K.
- Institute for Chemical Research, Kyoto Univ.
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- Kondou K.
- Institute for Chemical Research, Kyoto Univ.
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- Ohshima N.
- Device Platforms Research Laboratories, NEC Corp.
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- Kobayashi K.
- Institute for Chemical Research, Kyoto Univ.
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- Ono T.
- Institute for Chemical Research, Kyoto Univ.
Bibliographic Information
- Other Title
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- TMR効果を用いた磁気渦ダイナミクスの時間分解測定
- TMR コウカ オ モチイタ ジキウズ ダイナミクス ノ ジカン ブンカイ ソクテイ
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Abstract
Magnetic vortex dynamics has been intensively studied because of its potential application to non-volatile and high-density magnetic random access memory. Here, we demonstrate that the magnetic vortex dynamics can be detected by using a magnetic tunnel junction (MTJ). The huge output of the MTJ allows us to detect the magnetic vortex dynamics not only in the frequency domain, but also in the real-time regime. In the high current-density regime, changes of the phase of the output signal have been detected, which suggest switching events of the polarity of the magnetic vortex core.
Journal
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- Journal of the Magnetics Society of Japan
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Journal of the Magnetics Society of Japan 33 (1), 1-4, 2009
The Magnetics Society of Japan
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Keywords
Details
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- CRID
- 1390001205287836544
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- NII Article ID
- 110007008443
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- NII Book ID
- AA12297999
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- ISSN
- 18822932
- 18822924
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- NDL BIB ID
- 9761406
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed