Literature DB >> 11017248

Determining the Wiedemann-Franz ratio from the thermal hall conductivity: application to Cu and YBa2Cu3O6.95.

Y Zhang1, N P Ong, Z A Xu, K Krishana, R Gagnon, L Taillefer.   

Abstract

The Wiedemann-Franz (WF) ratio compares the thermal and electrical conductivities in a metal. We describe a new way to determine its value, based on the thermal Hall conductivity. The technique is applied to copper and to untwinned YBaCuO. In the latter, we uncover a T-linear dependence and suppression of the Hall-channel WF ratio. We discuss the implications of this suppression. The general suppression of the WF ratio in systems with predominant electron-electron scattering is discussed.

Entities:  

Year:  2000        PMID： 11017248     DOI： 10.1103/PhysRevLett.84.2219

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  6 in total

1.  Emergence of nontrivial magnetic excitations in a spin-liquid state of kagomé volborthite.

Authors:  Daiki Watanabe; Kaori Sugii; Masaaki Shimozawa; Yoshitaka Suzuki; Takeshi Yajima; Hajime Ishikawa; Zenji Hiroi; Takasada Shibauchi; Yuji Matsuda; Minoru Yamashita
Journal:  Proc Natl Acad Sci U S A       Date:  2016-07-20       Impact factor: 11.205

2.  Anomalous thermal diffusivity in underdoped YBa2Cu3O6+x.

Authors:  Jiecheng Zhang; Eli M Levenson-Falk; B J Ramshaw; D A Bonn; Ruixing Liang; W N Hardy; Sean A Hartnoll; Aharon Kapitulnik
Journal:  Proc Natl Acad Sci U S A       Date:  2017-05-08       Impact factor: 11.205

3.  Phonon drag thermal Hall effect in metallic strontium titanate.

Authors:  Shan Jiang; Xiaokang Li; Benoît Fauqué; Kamran Behnia
Journal:  Proc Natl Acad Sci U S A       Date:  2022-08-22       Impact factor: 12.779

4.  Gross violation of the Wiedemann-Franz law in a quasi-one-dimensional conductor.

Authors:  Nicholas Wakeham; Alimamy F Bangura; Xiaofeng Xu; Jean-Francois Mercure; Martha Greenblatt; Nigel E Hussey
Journal:  Nat Commun       Date:  2011-07-19       Impact factor: 14.919

5.  Temperature dependence of electrical and thermal conduction in single silver nanowire.

Authors:  Zhe Cheng; Longju Liu; Shen Xu; Meng Lu; Xinwei Wang
Journal:  Sci Rep       Date:  2015-06-02       Impact factor: 4.379

6.  The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa₂Cu₄O₈.

Authors:  A F Bangura; Xiaofeng Xu; N Wakeham; N Peng; S Horii; N E Hussey
Journal:  Sci Rep       Date:  2013-11-20       Impact factor: 4.379
  6 in total

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