Relation between vortex excitation and thermal conductivity in superconductors

M. Takigawa; M. Ichioka; K. Machida

doi:10.1140/epjb/e2002-00159-0

Relation between vortex excitation and thermal conductivity in superconductors

M. Takigawa, M. Ichioka, K. Machida

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Thermal conductivity K_xx(T) under a field is investigated in d_x2-y2-wave superconductors and isotropic s-wave superconductors by the linear response theory, using a microscopic wave function of the vortex lattice states. To study the origin of the different field dependence of K_XX(T) between higher and lower temperature regions, we analyze the spatially-resolved thermal conductivity around a vortex at each temperature, which is related to the spectrum of the local density of states. We also discuss the electric conductivity in the same formulation for a comparison.

Original language	English
Pages (from-to)	303-311
Number of pages	9
Journal	European Physical Journal B
Volume	27
Issue number	3
DOIs	https://doi.org/10.1140/epjb/e2002-00159-0
Publication status	Published - Jun 1 2002

Keywords

74.25.Fy Transport properties
74.25.Jb Electronic structure
74.60.Ec Mixed state

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1140/epjb/e2002-00159-0

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abstract = "Thermal conductivity Kxx(T) under a field is investigated in dx2-y2-wave superconductors and isotropic s-wave superconductors by the linear response theory, using a microscopic wave function of the vortex lattice states. To study the origin of the different field dependence of KXX(T) between higher and lower temperature regions, we analyze the spatially-resolved thermal conductivity around a vortex at each temperature, which is related to the spectrum of the local density of states. We also discuss the electric conductivity in the same formulation for a comparison.",

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AU - Takigawa, M.

AU - Ichioka, M.

AU - Machida, K.

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N2 - Thermal conductivity Kxx(T) under a field is investigated in dx2-y2-wave superconductors and isotropic s-wave superconductors by the linear response theory, using a microscopic wave function of the vortex lattice states. To study the origin of the different field dependence of KXX(T) between higher and lower temperature regions, we analyze the spatially-resolved thermal conductivity around a vortex at each temperature, which is related to the spectrum of the local density of states. We also discuss the electric conductivity in the same formulation for a comparison.

AB - Thermal conductivity Kxx(T) under a field is investigated in dx2-y2-wave superconductors and isotropic s-wave superconductors by the linear response theory, using a microscopic wave function of the vortex lattice states. To study the origin of the different field dependence of KXX(T) between higher and lower temperature regions, we analyze the spatially-resolved thermal conductivity around a vortex at each temperature, which is related to the spectrum of the local density of states. We also discuss the electric conductivity in the same formulation for a comparison.

KW - 74.25.Fy Transport properties

KW - 74.25.Jb Electronic structure

KW - 74.60.Ec Mixed state

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JF - European Physical Journal B

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Relation between vortex excitation and thermal conductivity in superconductors

Abstract

Keywords

ASJC Scopus subject areas

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