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    題名: Exchange bias in spin glass (FeAu)/NiFe thin films
    作者: 李尚凡
    Yuan,Fu-Te;Lin,Jeng-Kai;Yao,Y. D.;Lee,Shang-Fan
    貢獻者: 應物所
    日期: 2010
    上傳時間: 2014-10-09 15:49:33 (UTC+8)
    摘要: The exchange bias of a ferromagnet in contact with a spin glass is evidenced in the sputter deposited (Fe 9.6 at. % Au)/NiFe bilayers. The biasing field decreases as temperature increases, change the sign after reaching a compensation temperature(To), and are reduced to zero at higher temperatures. Furthermore, To decreases with the decreasing FeAu layer thickness. Likewise, the inverse bias decreases with the increasing maximum field of a hysteresis loop. A spin structure model is suggested to explain our data. The results confirm the robust nature of the inverse bias in spin glass/ferromagnetic structure and reveal distinct physics from conventional antiferromagnetic/ferromagnetic systems.
    關聯: Appl. Phys. Lett,96,162502
    資料類型: article
    顯示於類別:[應用物理研究所 ] 期刊論文

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