Low temperature thermal hall conductivity of a nodal chiral superconductor

Low temperature thermal hall conductivity of a nodal chiral superconductor
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节点手性超导体的低温热霍尔电导率

DOI:
10.1088/0953-2048/29/8/085006
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发表时间:
2016
影响因子:
3.6
通讯作者:
S. Yip
S. Yip
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
S. Yip

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在Sr2RuO4的激励下,我们考虑了一种手性超导体,其间隙沿某些动量方向被强烈抑制。我们采用最简单的各向同性杂质散射模型,评估了在无间隙状态下,即在低温下与杂质带宽度γ相比的热霍尔电导率。我们发现,在有利的情况下,这种霍尔热导率可以非常显著,并且仅比对角线分量(通用热导率)小1 / ln (2 Δ M / γ),其中Δ M是最大间隙。
Motivated by Sr2RuO4, we consider a chiral superconductor where the gap is strongly suppressed along certain momentum directions. We evaluate the thermal Hall conductivity in the gapless regime, i.e., at low temperature compared with the impurity band width γ, taking the simplest model of isotropic impurity scattering. We find that, under favorable circumstances, this thermal Hall conductivity can be quite significant and is smaller than the diagonal component (the universal thermal conductivity) only by a factor of 1 / ln ( 2 Δ M / γ ) , where Δ M is the maximum gap.
DOI: 10.1143/jpsj.71.404
发表时间: 2002-02-01
影响因子: 1.7
作者:
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DOI: 10.1126/science.1133239
发表时间: 2006-11-24
期刊: SCIENCE
影响因子: 56.9
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发表时间: 2004-01-30
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