Low-Temperature Dependence of the Shear Viscosity in Superconductor Sr2RuO4

被引：1

作者：

Yazdani-Hamid, M. ^{[1
]}

Yavari, H. ^{[1
]}

Shahzamanian, M. A. ^{[1
]}

Karimi, A. ^{[1
]}

机构：

[1] Univ Isfahan, Fac Sci, Dept Phys, Esfahan 81744, Iran

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2017年 / 30卷 / 04期

关键词：

Sr2RuO4; Boltzmann equation; Isotropic gap; Horizontal line node; ULTRASOUND ATTENUATION; LAYERED PEROVSKITE; SYMMETRY;

D O I：

10.1007/s10948-016-3875-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Low-temperature dependence of the shear viscosity components in superconductor Sr2RuO4 is investigated within the framework of the Boltzmann equation. We will show that this dissipative viscosity has a power-law temperature dependence as T-2 for the gamma band of the Fermi surface with the isotropic gap. Lupien et al. experimentally found that the shear viscosity components of superconductor Sr2RuO4 change as T-1.8 at low temperatures. This relative consistency between the temperature dependence for the isotropic gap and experimental results implies that the gap node of Sr2RuO4 may be a horizontal line node.

引用

页码：865 / 869

页数：5

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