Universal Heat Transport in [Formula presented]

M. Suzuki, M. A. Tanatar, N. Kikugawa, Z. Q. Mao, Y. Maeno, T. Ishiguro

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Abstract

We present the temperature dependence of the thermal conductivity [Formula presented] of the unconventional superconductor [Formula presented] down to low temperatures [Formula presented]. In the [Formula presented] limit we found a finite residual term in [Formula presented], providing clear evidence for the superconducting state with an unconventional pairing. The residual term remains unchanged for samples with different [Formula presented], demonstrating the universal character of heat transport in this spin-triplet superconductor. The low-temperature behavior of [Formula presented] suggests the strong impurity scattering with a phase shift close to [Formula presented]. A criterion for the observation of universality is experimentally deduced.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number22
DOIs
Publication statusPublished - Jan 1 2002

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Suzuki, M., Tanatar, M. A., Kikugawa, N., Mao, Z. Q., Maeno, Y., & Ishiguro, T. (2002). Universal Heat Transport in [Formula presented]. Physical Review Letters, 88(22). https://doi.org/10.1103/PhysRevLett.88.227004