Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor

R. Daou; Nicolas Doiron-Leyraud; David Leboeuf; S. Y. Li; Francis Laliberté; Olivier Cyr-Choinière; Y. J. Jo; L. Balicas; J. Q. Yan; J. S. Zhou; J. B. Goodenough; Louis Taillefer

doi:10.1038/nphys1109

Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor

R. Daou
, Nicolas Doiron-Leyraud
, David Leboeuf
, S. Y. Li
, Francis Laliberté
, Olivier Cyr-Choinière
, Y. J. Jo
, L. Balicas
, J. Q. Yan
, J. S. Zhou
, J. B. Goodenough
, Louis Taillefer

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

203 Scopus citations

Abstract

A fundamental question for high-emperature superconductors is the nature of the pseudogap phase, which lies between the Mott insulator at zero doping and the Fermi liquid at high doping p (refs1, 2). Here we report on the behaviour of charge carriers near the zero-temperature onset of this phase, namely at the critical doping p*, where the pseudogap temperature T* goes to zero, accessed by investigating a material in which superconductivity can be fully suppressed by a steady magnetic field. Just below p*, the normal-state resistivity and Hall coefficient of La 1.6x Nd 0.4 Sr x CuO 4 are found to rise simultaneously as the temperature drops below T*, suggesting a change in the Fermi surface with a large associated drop in conductivity. At p*, the resistivity shows a linear temperature dependence as the temperature approaches zero, a typical signature of a quantum critical point. These findings impose new constraints on the mechanisms responsible for inelastic scattering and Fermi-surface transformation in theories of the pseudogap phase.

Original language	English
Pages (from-to)	31-34
Number of pages	4
Journal	Nature Physics
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/nphys1109
State	Published - Jan 2009
Externally published	Yes

Funding

We thank K. Behnia, A. Chubukov, P. Coleman, Y.B. Kim, S.A. Kivelson, G. Kotliar, K. Haule, G.G. Lonzarich, A.J. Millis, M.R. Norman, C. Proust, T.M. Rice, S. Sachdev, T. Senthil, H. Takagi and A.-M.S. Tremblay for discussions, and J. Corbin for his assistance with the experiments. L.T. acknowledges support from the Canadian Institute for Advanced Research and funding from NSERC, FQRNT, and a Canada Research Chair. L.B. was supported by NHMFL-UCGP and Y.J.J. by the NHMFL-Schuller fellow program. J.S.Z. and J.B.G. were supported by an NSF grant. The NHMFL is supported by an NSF grant and the State of Florida.

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Daou, R., Doiron-Leyraud, N., Leboeuf, D., Li, S. Y., Laliberté, F., Cyr-Choinière, O., Jo, Y. J., Balicas, L., Yan, J. Q., Zhou, J. S., Goodenough, J. B., & Taillefer, L. (2009). Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor. Nature Physics, 5(1), 31-34. https://doi.org/10.1038/nphys1109

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title = "Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor",

abstract = "A fundamental question for high-emperature superconductors is the nature of the pseudogap phase, which lies between the Mott insulator at zero doping and the Fermi liquid at high doping p (refs1, 2). Here we report on the behaviour of charge carriers near the zero-temperature onset of this phase, namely at the critical doping p*, where the pseudogap temperature T* goes to zero, accessed by investigating a material in which superconductivity can be fully suppressed by a steady magnetic field. Just below p*, the normal-state resistivity and Hall coefficient of La 1.6x Nd 0.4 Sr x CuO 4 are found to rise simultaneously as the temperature drops below T*, suggesting a change in the Fermi surface with a large associated drop in conductivity. At p*, the resistivity shows a linear temperature dependence as the temperature approaches zero, a typical signature of a quantum critical point. These findings impose new constraints on the mechanisms responsible for inelastic scattering and Fermi-surface transformation in theories of the pseudogap phase.",

author = "R. Daou and Nicolas Doiron-Leyraud and David Leboeuf and Li, \{S. Y.\} and Francis Lalibert{\'e} and Olivier Cyr-Choini{\`e}re and Jo, \{Y. J.\} and L. Balicas and Yan, \{J. Q.\} and Zhou, \{J. S.\} and Goodenough, \{J. B.\} and Louis Taillefer",

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Daou, R, Doiron-Leyraud, N, Leboeuf, D, Li, SY, Laliberté, F, Cyr-Choinière, O, Jo, YJ, Balicas, L, Yan, JQ, Zhou, JS, Goodenough, JB & Taillefer, L 2009, 'Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor', Nature Physics, vol. 5, no. 1, pp. 31-34. https://doi.org/10.1038/nphys1109

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AU - Doiron-Leyraud, Nicolas

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AU - Li, S. Y.

AU - Laliberté, Francis

AU - Cyr-Choinière, Olivier

AU - Jo, Y. J.

AU - Balicas, L.

AU - Yan, J. Q.

AU - Zhou, J. S.

AU - Goodenough, J. B.

AU - Taillefer, Louis

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AB - A fundamental question for high-emperature superconductors is the nature of the pseudogap phase, which lies between the Mott insulator at zero doping and the Fermi liquid at high doping p (refs1, 2). Here we report on the behaviour of charge carriers near the zero-temperature onset of this phase, namely at the critical doping p*, where the pseudogap temperature T* goes to zero, accessed by investigating a material in which superconductivity can be fully suppressed by a steady magnetic field. Just below p*, the normal-state resistivity and Hall coefficient of La 1.6x Nd 0.4 Sr x CuO 4 are found to rise simultaneously as the temperature drops below T*, suggesting a change in the Fermi surface with a large associated drop in conductivity. At p*, the resistivity shows a linear temperature dependence as the temperature approaches zero, a typical signature of a quantum critical point. These findings impose new constraints on the mechanisms responsible for inelastic scattering and Fermi-surface transformation in theories of the pseudogap phase.

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Linear temperature dependence of resistivity and change in the Fermi surface at the pseudogap critical point ofahigh-Tc superconductor

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