Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy

G. Grissonnanche; F. Laliberté; S. Dufour-Beauséjour; M. Matusiak; S. Badoux; F. F. Tafti; B. Michon; A. Riopel; O. Cyr-Choinière; J. C. Baglo; B. J. Ramshaw; R. Liang; D. A. Bonn; W. N. Hardy; S. Krämer; D. LeBoeuf; D. Graf; N. Doiron-Leyraud; Louis Taillefer

doi:10.1103/PhysRevB.93.064513

Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy

G. Grissonnanche
, F. Laliberté
, S. Dufour-Beauséjour
, M. Matusiak
, S. Badoux
, F. F. Tafti
, B. Michon
, A. Riopel
, O. Cyr-Choinière
, J. C. Baglo
, B. J. Ramshaw
, R. Liang
, D. A. Bonn
, W. N. Hardy
, S. Krämer
, D. LeBoeuf
, D. Graf
, N. Doiron-Leyraud
, Louis Taillefer

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

36 Citations (Scopus)

Abstract

The electrical and thermal Hall conductivities of the cuprate superconductor YBa2Cu3Oy, σxy and κxy, were measured in a magnetic field up to 35 T, at a hole concentration (doping) p=0.11. In the T=0 limit, we find that the Wiedemann-Franz law, κxy/T=(π2/3)(kB/e)2σxy, is satisfied for fields immediately above the vortex-melting field Hvs. This rules out the existence of a vortex liquid at T=0 and it puts a clear constraint on the nature of the normal state in underdoped cuprates, in a region of the doping phase diagram where charge-density-wave order is known to exist. As the temperature is raised, the Lorenz ratio, Lxy=κxy/(σxyT), decreases rapidly, indicating that strong small-q scattering processes are involved.

Original language	English
Article number	064513
Journal	Physical Review B
Volume	93
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.93.064513
Publication status	Published - 22 Feb 2016
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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Grissonnanche, G., Laliberté, F., Dufour-Beauséjour, S., Matusiak, M., Badoux, S., Tafti, F. F., Michon, B., Riopel, A., Cyr-Choinière, O., Baglo, J. C., Ramshaw, B. J., Liang, R., Bonn, D. A., Hardy, W. N., Krämer, S., LeBoeuf, D., Graf, D., Doiron-Leyraud, N., & Taillefer, L. (2016). Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy. Physical Review B, 93(6), Article 064513. https://doi.org/10.1103/PhysRevB.93.064513

@article{b186ee360fc34e5a8a76568ca526c237,

title = "Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy",

abstract = "The electrical and thermal Hall conductivities of the cuprate superconductor YBa2Cu3Oy, σxy and κxy, were measured in a magnetic field up to 35 T, at a hole concentration (doping) p=0.11. In the T=0 limit, we find that the Wiedemann-Franz law, κxy/T=(π2/3)(kB/e)2σxy, is satisfied for fields immediately above the vortex-melting field Hvs. This rules out the existence of a vortex liquid at T=0 and it puts a clear constraint on the nature of the normal state in underdoped cuprates, in a region of the doping phase diagram where charge-density-wave order is known to exist. As the temperature is raised, the Lorenz ratio, Lxy=κxy/(σxyT), decreases rapidly, indicating that strong small-q scattering processes are involved.",

author = "G. Grissonnanche and F. Lalibert{\'e} and S. Dufour-Beaus{\'e}jour and M. Matusiak and S. Badoux and Tafti, \{F. F.\} and B. Michon and A. Riopel and O. Cyr-Choini{\`e}re and Baglo, \{J. C.\} and Ramshaw, \{B. J.\} and R. Liang and Bonn, \{D. A.\} and Hardy, \{W. N.\} and S. Kr{\"a}mer and D. LeBoeuf and D. Graf and N. Doiron-Leyraud and Louis Taillefer",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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month = feb,

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doi = "10.1103/PhysRevB.93.064513",

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issn = "2469-9950",

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Grissonnanche, G, Laliberté, F, Dufour-Beauséjour, S, Matusiak, M, Badoux, S, Tafti, FF, Michon, B, Riopel, A, Cyr-Choinière, O, Baglo, JC, Ramshaw, BJ, Liang, R, Bonn, DA, Hardy, WN, Krämer, S, LeBoeuf, D, Graf, D, Doiron-Leyraud, N & Taillefer, L 2016, 'Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy', Physical Review B, vol. 93, no. 6, 064513. https://doi.org/10.1103/PhysRevB.93.064513

TY - JOUR

T1 - Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy

AU - Grissonnanche, G.

AU - Laliberté, F.

AU - Dufour-Beauséjour, S.

AU - Matusiak, M.

AU - Badoux, S.

AU - Tafti, F. F.

AU - Michon, B.

AU - Riopel, A.

AU - Cyr-Choinière, O.

AU - Baglo, J. C.

AU - Ramshaw, B. J.

AU - Liang, R.

AU - Bonn, D. A.

AU - Hardy, W. N.

AU - Krämer, S.

AU - LeBoeuf, D.

AU - Graf, D.

AU - Doiron-Leyraud, N.

AU - Taillefer, Louis

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/2/22

Y1 - 2016/2/22

N2 - The electrical and thermal Hall conductivities of the cuprate superconductor YBa2Cu3Oy, σxy and κxy, were measured in a magnetic field up to 35 T, at a hole concentration (doping) p=0.11. In the T=0 limit, we find that the Wiedemann-Franz law, κxy/T=(π2/3)(kB/e)2σxy, is satisfied for fields immediately above the vortex-melting field Hvs. This rules out the existence of a vortex liquid at T=0 and it puts a clear constraint on the nature of the normal state in underdoped cuprates, in a region of the doping phase diagram where charge-density-wave order is known to exist. As the temperature is raised, the Lorenz ratio, Lxy=κxy/(σxyT), decreases rapidly, indicating that strong small-q scattering processes are involved.

AB - The electrical and thermal Hall conductivities of the cuprate superconductor YBa2Cu3Oy, σxy and κxy, were measured in a magnetic field up to 35 T, at a hole concentration (doping) p=0.11. In the T=0 limit, we find that the Wiedemann-Franz law, κxy/T=(π2/3)(kB/e)2σxy, is satisfied for fields immediately above the vortex-melting field Hvs. This rules out the existence of a vortex liquid at T=0 and it puts a clear constraint on the nature of the normal state in underdoped cuprates, in a region of the doping phase diagram where charge-density-wave order is known to exist. As the temperature is raised, the Lorenz ratio, Lxy=κxy/(σxyT), decreases rapidly, indicating that strong small-q scattering processes are involved.

UR - https://www.scopus.com/pages/publications/84959562403

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84959562403&origin=recordpage

U2 - 10.1103/PhysRevB.93.064513

DO - 10.1103/PhysRevB.93.064513

M3 - RGC 21 - Publication in refereed journal

SN - 2469-9950

VL - 93

JO - Physical Review B

JF - Physical Review B

IS - 6

M1 - 064513

ER -

Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3 Oy

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