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首页> 外文期刊>Thin Solid Films >Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer
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Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer

机译:界面结构对带有Ag缓冲层的超薄Fe / Pt(111)薄膜的磁性的影响

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摘要

For Fe/Pt(111) grown at 180 K, the easy axis of magnetization changes from out-of-plane to in-plane while the surface structure changes from fcc( 111) to bcc( 110). The Curie temperature for 1 ML Fe/Pt( 111) is close to room temperature. After insertion of submonolayer Ag, no significant change for the Curie temperature is observed. By thermally annealing Ag/Pt( 111) at 550 K to form a Ag-Pt surface alloy, we demonstrate that the Curie temperature of the deposited Fe films is elevated to be higher than room temperature. For an ultrathin Fe/Ag/Fe/Pt(111) sandwich system, the strong interaction between the two Fe layers is superior due to the effect of the double Fe/Ag interfaces. This causes that the easy axis of the magnetization switches back to the in-plane direction during the deposition of Fe overlayer on the surface of a Ag/Fe/Pt(lll) film.
机译:对于在180 K下生长的Fe / Pt(111),易磁化轴从平面外变为平面内,而表面结构从fcc(111)变为bcc(110)。 1 ML Fe / Pt(111)的居里温度接近室温。插入亚单分子层Ag后,未观察到居里温度发生明显变化。通过在550 K下对Ag / Pt(111)进行热退火以形成Ag-Pt表面合金,我们证明了沉积的Fe膜的居里温度升高到高于室温。对于超薄的Fe / Ag / Fe / Pt(111)三明治体系,由于双Fe / Ag界面的作用,两个Fe层之间的强相互作用更为出色。这导致在Fe覆盖层在Ag / Fe / Pt(III)膜的表面上沉积期间,磁化的易轴转换回到面内方向。

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  • 来源
    《Thin Solid Films》 |2011年第23期|p.8343-8346|共4页
  • 作者单位

    Department of Computer and Communication Engineering, Taipei College of Maritime Technology, 212, Sec. 9, Van-Pin N. Road, Taipei 111, Taiwan;

    Department of Physics, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan;

    Department of Science Education, National Taipei University of Education, 134, Sec. 2, Heping E. Road, Taipei 106, Taiwan;

    Department of Physics, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    magneto-optic kerr effect; spin-reorientation transition; surface alloy; Fe; Ag;

    机译:磁光克尔效应自旋取向转变;表面合金铁银;

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