Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4

R. A. Cooper, Y. Wang, B. Vignolle, O. J. Lipscombe, S. M. Hayden, Y. Tanabe, T. Adachi, Y. Koike, Minoru Nohara, H. Takagi, Cyril Proust, N. E. Hussey

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Abstract

The presence or absence of a quantum critical point and its location in the phase diagram of high-temperature superconductors have been subjects of intense scrutiny. Clear evidence for quantum criticality, particularly in the transport properties, has proved elusive because the important low-temperature region is masked by the onset of superconductivity. We present measurements of the low-temperature in-plane resistivity of several highly doped La 2-xSrxCuO4 single crystals in which the superconductivity had been stripped away by using high magnetic fields. In contrast to other quantum critical systems, the resistivity varies linearly with temperature over a wide doping range with a gradient that scales monotonically with the superconducting transition temperature. It is maximal at a critical doping level (pc) ∼ 0.19 at which superconductivity is most robust. Moreover, its value at pc corresponds to the onset of quasi-particle incoherence along specific momentum directions, implying that the interaction that first promotes high-temperature superconductivity may ultimately destroy the very quasi-particle states involved in the superconducting pairing.

Original languageEnglish
Pages (from-to)603-607
Number of pages5
JournalScience
Volume323
Issue number5914
DOIs
Publication statusPublished - Jan 30 2009

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Temperature
Transition Temperature
Magnetic Fields
Superconductivity

ASJC Scopus subject areas

  • General

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Cooper, R. A., Wang, Y., Vignolle, B., Lipscombe, O. J., Hayden, S. M., Tanabe, Y., ... Hussey, N. E. (2009). Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4. Science, 323(5914), 603-607. https://doi.org/10.1126/science.1165015

Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4. / Cooper, R. A.; Wang, Y.; Vignolle, B.; Lipscombe, O. J.; Hayden, S. M.; Tanabe, Y.; Adachi, T.; Koike, Y.; Nohara, Minoru; Takagi, H.; Proust, Cyril; Hussey, N. E.

In: Science, Vol. 323, No. 5914, 30.01.2009, p. 603-607.

Research output: Contribution to journalArticle

Cooper, RA, Wang, Y, Vignolle, B, Lipscombe, OJ, Hayden, SM, Tanabe, Y, Adachi, T, Koike, Y, Nohara, M, Takagi, H, Proust, C & Hussey, NE 2009, 'Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4', Science, vol. 323, no. 5914, pp. 603-607. https://doi.org/10.1126/science.1165015
Cooper RA, Wang Y, Vignolle B, Lipscombe OJ, Hayden SM, Tanabe Y et al. Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4. Science. 2009 Jan 30;323(5914):603-607. https://doi.org/10.1126/science.1165015
Cooper, R. A. ; Wang, Y. ; Vignolle, B. ; Lipscombe, O. J. ; Hayden, S. M. ; Tanabe, Y. ; Adachi, T. ; Koike, Y. ; Nohara, Minoru ; Takagi, H. ; Proust, Cyril ; Hussey, N. E. / Anomalous criticality in the electrical resistivity of La 2-xSrxCuO4. In: Science. 2009 ; Vol. 323, No. 5914. pp. 603-607.
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