Quasiclassical calculation of the quasiparticle thermal conductivity in a mixed state

Hiroto Adachi, Predrag Miranovic, Masanori Ichioka, Kazushige Machida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the result of calculation of the quasiparticle thermal conductivity κ xx (∇ T ⊥ B) in the vortex state of a two-dimensional superconductor. We compute κ xx for both s-wave and d-wave superconductors, taking account of the spatial dependence of normal Green's function g, which is neglected in the previous studies using the Brandt-Pesch-Tewordt (BPT) method. Our results indicate that κ xx based on the BPT method is slightly underestimated due to its incoherent spatial averaging procedure.

Original languageEnglish
Pages (from-to)640-642
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - Mar 2007

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Superconducting materials
Thermal conductivity
thermal conductivity
Green's function
Vortex flow
Green's functions
vortices

Keywords

  • Nodal superconductor
  • Quasiparticle thermal conductivity
  • Vortex state

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Quasiclassical calculation of the quasiparticle thermal conductivity in a mixed state. / Adachi, Hiroto; Miranovic, Predrag; Ichioka, Masanori; Machida, Kazushige.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 1, 03.2007, p. 640-642.

Research output: Contribution to journalArticle

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AB - We report the result of calculation of the quasiparticle thermal conductivity κ xx (∇ T ⊥ B) in the vortex state of a two-dimensional superconductor. We compute κ xx for both s-wave and d-wave superconductors, taking account of the spatial dependence of normal Green's function g, which is neglected in the previous studies using the Brandt-Pesch-Tewordt (BPT) method. Our results indicate that κ xx based on the BPT method is slightly underestimated due to its incoherent spatial averaging procedure.

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