Domain Nucleation and Annihilation in Uniformly Magnetized State under Current Pulses in Narrow Ferromagnetic Wires
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概要
- 論文の詳細を見る
We investigate the current-driven magnetization dynamics in narrow Permalloy wires by means of Lorentz microscopy and electron holography. Current pulses are found to transform the magnetic structure in the uniformly magnetized state below the Curie temperature. A variety of magnetic states including reversed magnetic domains are randomly obtained in low probability. The dynamics of vortices found in most of observed magnetic states seems to play a key role in triggering the magnetization reversal.
- Japan Society of Applied Physicsの論文
- 2006-12-25
著者
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Harada Ken
Frontier Research System The Institute Of Physical And Chemical Research (riken)
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Matsuda Tsuyoshi
Frontier Research System The Institute Of Physical And Chemical Research (riken)
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TOGAWA Yoshihiko
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN)
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AKASHI Tetsuya
Advanced Research Laboratory, Hitachi, Ltd.
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TONOMURA Akira
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN)
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Tonomura Akira
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako, Saitama 351-0198, Japan
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Otani Yoshichika
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako, Saitama 351-0198, Japan
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Togawa Yoshihiko
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako, Saitama 351-0198, Japan
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Akashi Tetsuya
Advanced Research Laboratory, Hitachi, Ltd., Akanuma, Hatoyama, Saitama 350-0395, Japan
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Kimura Takashi
Frontier Research System, the Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako, Saitama 351-0198, Japan
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OTANI Yoshichika
Frontier Research System, The Institute of Physical and Chemical Research (RIKEN)
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