The Wiedemann-Pranz ratio in YBa2Cu3O7-δ determined from the thermal Hall conductivity

Physica C: Superconductivity and its Applications

Volumn 341-348, Issue PART 2, 2000, Pages 1833-1836

  Xu, Z A ^a,d   Zhang, Y ^a   Ong, N P ^a   Krishana, K ^a   Gagnon, R ^b   Taillefer, L ^c  

^a PRINCETON UNIVERSITY   (United States)

^b MCGILL UNIVERSITY   (Canada)

^c UNIVERSITY OF TORONTO   (Canada)

^d ZHEJIANG UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

ENTROPY; HALL EFFECT; PHONONS; SUPERCONDUCTIVITY; THERMAL CONDUCTIVITY OF SOLIDS; YTTRIUM BARIUM COPPER OXIDES;

HALL LORENZ NUMBER; THERMAL HALL CONDUCTIVITY; WIEDEMANN-FRANZ RATIO;

OXIDE SUPERCONDUCTORS;

EID: 0342527638     PISSN: 09214534     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0921-4534(00)01123-0     Document Type: Article

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14. e = 0) produces an undisplaced F S with a skewed Fermi distribution. This leads to a heat current that is far larger than the Peltier current, but sensitive to relaxation by N processes. By contrast, in lattice conduction, the absence of U processes leads to a rigid displacement of the Bose-Einstein distribution, but there is no cancelling backflow corresponding to the hole current. Phonon heat conduction is convective, while the electronic current is particle-number conserving. See Ref. [3].