...
首页> 外文期刊>Physical review >Volovik effect in a highly anisotropic multiband superconductor: Experiment and theory
【24h】

Volovik effect in a highly anisotropic multiband superconductor: Experiment and theory

机译:高各向异性多带超导体中的Volovik效应:实验和理论

获取原文
获取原文并翻译 | 示例
           

摘要

We present measurements of the specific heat coefficient γ (≡C/ T) in the low-temperature limit as a function of an applied magnetic field for the Fe-based superconductor BaFe_2(As_(0.7)P_(0.3))_2. We find both a linear regime at higher fields and a limiting square root H behavior at very low fields. The crossover from a Volovik-like H~(1/2) to a linear field dependence can be understood from a multiband calculation in the quasiclassical approximation assuming gaps with different momentum dependence on the hole- and electronlike Fermi surface sheets.
机译:我们提出了在低温极限下的比热系数γ(≡C/ T)的测量值,作为铁基超导体BaFe_2(As_(0.7)P_(0.3))_ 2施加磁场的函数。我们发现在较高磁场下的线性状态和在极低磁场下的有限平方根H行为。从类沃洛维克H〜(1/2)到线性场相关性的交叉可以从准经典近似中的多带计算中理解,假设间隙对空穴和类电子费米表面板的动量依赖性不同。

著录项

  • 来源
    《Physical review》 |2011年第18期|p.184524.1-184524.10|共10页
  • 作者单位

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

    Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

    Research Center for Low Temperature and Materials Sciences, Kyoto University, Kyoto 606-8501, Japan;

    Research Center for Low Temperature and Materials Sciences, Kyoto University, Kyoto 606-8501, Japan;

    Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan;

    Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan;

    Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA;

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

    pairing symmetries (other than s-wave); thermodynamic properties;

    机译:配对对称性(s波除外);热力学性质;

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