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arXiv 2005.09029cond-mat.supr-con
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$\text{Sr}_2\text{Ru}\text{O}_4$的$T_c$和Pauli极限临界场:单轴应变依赖性

$T_c$ and Pauli limited critical field of $\text{Sr}_2\text{Ru}\text{O}_4$: uniaxial strain dependence

Yue Yu, Stuart Brown, S. Raghu, Kun Yang

摘要:

最近有文献报道了$\text{Sr}_2\text{Ru}\text{O}_4$在单轴应力下的临界温度$T_c$和面内临界场$H_{c2}$的变化。我们比较了$T_c$和$H_{c2}$在各种配对通道($d$ -波,扩展的s-波和$p$ -波)与实验观察的应变依赖性,通过研究一个三带紧束缚模型,包括自旋轨道和塞曼耦合的影响和一个可分离的配对相互作用。我们的研究有助于缩小配对通道的可能性。还强调了$\text{Sr}_2\text{Ru}\text{O}_4$的多频带性质的重要性。

英文摘要:

Variations of critical temperature $T_c$ and in-plane critical field $H_{c2}$ of $\text{Sr}_2\text{Ru}\text{O}_4$ under uniaxial stress have recently been reported. We compare the strain dependence of $T_c$ and $H_{c2}$ in various pairing channels ($d$-wave, extended s-wave and $p$-wave) with the experimental observations, by studying a three-band tight-binding model that includes effects of spin-orbit and Zeeman couplings and a separable pairing interaction. Our study helps narrow down the possibility of pairing channels. The importance of the multi-band nature of $\text{Sr}_2\text{Ru}\text{O}_4$ is also highlighted.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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