...
首页> 外文期刊>Physical review >Effect of magnetic Gd impurities on the superconducting state of amorphous Mo-Ge thin films with different thickness and morphology
【24h】

Effect of magnetic Gd impurities on the superconducting state of amorphous Mo-Ge thin films with different thickness and morphology

机译:磁性Gd杂质对不同厚度和形貌的非晶Mo-Ge薄膜超导状态的影响

获取原文
获取原文并翻译 | 示例
           

摘要

We studied the effect of magnetic doping with Gd atoms on the superconducting properties of amorphous Mo_(70)Ge_(30) films. We observed that in uniform films deposited on amorphous Ge, the pair-breaking strength per impurity strongly decreases with film thickness initially and saturates at a finite value in films with thickness below the spin-orbit scattering length. The variation is likely caused by surface-induced magnetic anisotropy and is consistent with the fermionic mechanism of superconductivity suppression. In thin films deposited on SiN the pair-breaking strength becomes zero. Possible reasons for this anomalous response are discussed. The morphological distinctions between the films of the two types were identified using atomic force microscopy with a carbon nanotube tip.
机译:我们研究了磁掺杂Gd原子对非晶Mo_(70)Ge_(30)薄膜超导性能的影响。我们观察到,在沉积在非晶态Ge上的均匀膜中,每个杂质的成对断裂强度均会随着膜厚度的开始而显着降低,并且在厚度低于自旋轨道散射长度的膜中达到一定的饱和值。该变化很可能是由表面感应的磁各向异性引起的,并且与超导性抑制的费米离子机理相一致。在沉积在SiN上的薄膜中,成对断裂强度变为零。讨论了这种异常响应的可能原因。使用具有碳纳米管尖端的原子力显微镜,可以确定两种类型薄膜之间的形态学区别。

著录项

  • 来源
    《Physical review》 |2012年第2期|p.024518.1-024518.7|共7页
  • 作者单位

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

    Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA;

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

    granular, melt-textured, amorphous and composite;

    机译:粒状;熔融织构;无定形和复合材料;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号