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http://ir.ncue.edu.tw/ir/handle/987654321/14096
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題名: | Quantum Dynamics of Tunneling Between Ferromagnets |
作者: | Lee, Yu-Li;Lee, Yu-Wen |
貢獻者: | 物理學系 |
日期: | 2003
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上傳時間: | 2012-09-10T06:07:48Z
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出版者: | The American Physical Society |
摘要: | We study the Josephson-like spin currents between two ferromagnetic metals by deriving the effective action of the junction. A dc spin Josephson current with the full O(3) symmetry is obtained. We also show that a time-independent uniform magnetic field can serve as the source of the ac spin Josephson effect. That is, the spin current in a uniform magnetic field becomes a periodic function of the time with the period proportional to the inverse of the magnitude of the external magnetic field. |
關聯: | Phys. Rev. B, 68(18): 184413 |
顯示於類別: | [物理學系] 期刊論文
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