论文标题
了解富氢的超导体：有效质量和肮脏极限的重要性
Understanding Hydrogen Rich Superconductors: Importance of Effective Mass and Dirty Limit
论文作者
论文摘要
已知与II型超导性一致的一类富氢（富含H的）系统具有很高的超导过渡温度TC和上临界磁场BC2值（分别为288 K和222 t）。通过查看迄今为止据报道的所有富含H的实验性超导体，最高的TC值是在交叉中到清洁方案。在此框架中，清楚地了解了一些以前无法解释的行为：（1）BC2中的最大值作为TC的函数； （2）TC中斜率的明显变化是CSH压力的函数； （3）在零磁场中，超导过渡的宽度随着TC的增加而减小； （4）在应用磁场中，超导宽度与场的斜率随着TC的增加而减小。 Ginzburg-Landau-Abrikosov-Gorkov（GLAG）理论用于解释在TC增加与电子有效质量和散射长度的增加有关的框架内的所有这些效应。
A class of hydrogen-rich (H-rich) systems, consistent with Type II superconductivity, are known to have very high superconducting transition temperatures Tc and upper critical magnetic field Bc2 values (up to 288 K and 222 T respectively). By looking at all the experimental H-rich superconductors reported to date most are in the dirty limit, with only the highest Tc values being in the crossover to the clean regime. In this framework, there is a clear understanding of some previous unexplained behaviors: (1) A maximum in Bc2 as a function of Tc; (2) a clear change in slope in Tc as a function of pressure in CSH; (3) in zero magnetic field the width of the superconducting transition decreasing with increasing Tc; and (4) in applied magnetic field the slope of the superconducting width versus field decreasing with increasing Tc. Ginzburg-Landau-Abrikosov-Gorkov (GLAG) theory is used to explain all four of these effects within a framework where increasing Tc is related to increases in both the electron effective mass and scattering length.
