论文标题
超导ute2中的低温特异性热和热导率
Low temperature specific heat and thermal conductivity in superconducting UTe2
论文作者
论文摘要
测量值（phys.rev.b {\ bf 100}，220504（r）（2019））在t = 0限制中的超导ute $ _2 $中未检测到明显的热导率。同时，相同的晶体表现出与正常状态值相当的较大剩余密度。样品质量的改善会导致过渡到超导状态的临界温度的增加，并伴随着剩余的特异性热比$ c（t）/t $ $ t \ t \ 0 $的降低。在ute $ _2 $中对称性允许的对称性允许的对称性允许的三重态超导状态的混凝土案例中，提出了这种反相关属性的分析推导。与观测值合理的对应关系，获得的剩余热导率的明确公式是合理的。
The measurements (Phys.Rev.B {\bf 100}, 220504(R) (2019)) do not detect noticeable thermal conductivity in superconducting UTe$_2$ in the T=0 limit. At the same time the same crystals exhibit a large residual density of states comparable with its normal state value. The improvement of samples quality leads to the augmentation of critical temperature of transition to the superconducting state accompanied by the decreasing of residual specific heat ratio $C(T)/T$ at $T\to 0$. There is presented an analytic derivation of this inverse correlation property in concrete cases of triplet superconducting states with node-less and point-nodes order parameters allowed by symmetry in UTe$_2$. The obtained explicit formulas for the residual thermal conductivity are in reasonable correspondence with observations.
