Wiedemann-Franz law in Bi2Sr2CaCu2O8

Xiaoqun Du; Laszlo Mihaly; Philip B. Allen

doi:10.1016/0921-4526(94)91253-X

Wiedemann-Franz law in Bi₂Sr₂CaCu₂O₈

Xiaoqun Du
, Laszlo Mihaly
, Philip B. Allen

Physics and Astronomy

Stony Brook University

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

12 Scopus citations

Abstract

The measured thermal conductivity of insulating Bi₂Sr₂YCu₂O₈ is used to estimate the phonon part of the thermal conductivity κ(T) of the superconductor Bi₂Sr₂CaCu₂O₈. Subtraction gives an "experimental" electronic part κ_el, and thus a Wiedemann-Franz ratio L = κ_el/σT, close to the Lorenz number L₀, with a small temperature dependence opposite to conventional electron-phonon scattering.

Original language	English
Pages (from-to)	1507-1508
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91253-X
State	Published - Feb 2 1994

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title = "Wiedemann-Franz law in Bi2Sr2CaCu2O8",

abstract = "The measured thermal conductivity of insulating Bi2Sr2YCu2O8 is used to estimate the phonon part of the thermal conductivity κ(T) of the superconductor Bi2Sr2CaCu2O8. Subtraction gives an {"}experimental{"} electronic part κel, and thus a Wiedemann-Franz ratio L = κel/σT, close to the Lorenz number L0, with a small temperature dependence opposite to conventional electron-phonon scattering.",

author = "Xiaoqun Du and Laszlo Mihaly and Allen, \{Philip B.\}",

year = "1994",

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T1 - Wiedemann-Franz law in Bi2Sr2CaCu2O8

AU - Du, Xiaoqun

AU - Mihaly, Laszlo

AU - Allen, Philip B.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - The measured thermal conductivity of insulating Bi2Sr2YCu2O8 is used to estimate the phonon part of the thermal conductivity κ(T) of the superconductor Bi2Sr2CaCu2O8. Subtraction gives an "experimental" electronic part κel, and thus a Wiedemann-Franz ratio L = κel/σT, close to the Lorenz number L0, with a small temperature dependence opposite to conventional electron-phonon scattering.

AB - The measured thermal conductivity of insulating Bi2Sr2YCu2O8 is used to estimate the phonon part of the thermal conductivity κ(T) of the superconductor Bi2Sr2CaCu2O8. Subtraction gives an "experimental" electronic part κel, and thus a Wiedemann-Franz ratio L = κel/σT, close to the Lorenz number L0, with a small temperature dependence opposite to conventional electron-phonon scattering.

UR - https://www.scopus.com/pages/publications/0028759968

U2 - 10.1016/0921-4526(94)91253-X

DO - 10.1016/0921-4526(94)91253-X

M3 - Article

AN - SCOPUS:0028759968

SN - 0921-4526

VL - 194-196

SP - 1507

EP - 1508

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART 2

ER -

Wiedemann-Franz law in Bi₂Sr₂CaCu₂O₈

Abstract

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