论文标题

($ d_ {zx}+id_ {yz} $)的表面状态的破坏 - 表面粗糙度的浪潮超导体:应用于sr $ _2 $ ruo $ _4 $

Destruction of surface states of ($d_{zx}+id_{yz}$)-wave superconductor by surface roughness: application to Sr$_2$RuO$_4$

论文作者

Suzuki, Shu-Ichiro, Ikegaya, Satoshi, Golubov, Alexander A.

论文摘要

($ d_ {zx}+id_ {yz} $)的手性表面电流的脆弱性 - 波浪超导体,这是SR $ _2 $ ruo $ _4 $的潜在候选者,使用表面粗糙度,证明了准确的Eilenberger理论。比较($ d_ {zx}+id_ {yz} $)的手性表面电流 - wave和($ p_ {x}+ip_ {y} $) - 波配对,我们得出结论($ d_ {zx}+id_ {yz {yz {yz} $ sc sc ye the the the($ p),我们得出了($ d_ {zx}+id_ vave sc $ the($ d)的chiral电流。可以从奇数库珀对的轨道对称性来理解差异。我们的结果表明($ d_ {zx}+id_ {yz} $) - 波场景可以解释sr $ _2 $ ruo $ _4 $实验中的无效自发磁化。

The fragility of the chiral surface current of ($d_{zx}+id_{yz}$)-wave superconductor, a potential candidate for Sr$_2$RuO$_4$, against surface roughness is demonstrated utilizing the quasiclassical Eilenberger theory. Comparing the chiral surface currents of ($d_{zx}+id_{yz}$)-wave and ($p_{x}+ip_{y}$)-wave pairings, we conclude the chiral current for ($d_{zx}+id_{yz}$)-wave SC is much more fragile than that for the ($p_x+ip_y$)-wave one. The difference can be understood in terms of the orbital symmetry of the odd-frequency Cooper pairs arising at the surface. Our results show the ($d_{zx}+id_{yz}$)-wave scenario can explain the null spontaneous magnetization in Sr$_2$RuO$_4$ experiments.

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