Incoherent transport and the evolution of power-law scaling of the magnetoresistance in cuprate superconductors.

ORAL

Abstract

The normal state of overdoped cuprate superconductors within the strange metal regime (p* < p < psc) is characterized by a T-linear in-plane resistivity that persists to lowest temperatures and grows with the strength of superconductivity as optimal doping is approached from the overdoped end of the superconducting dome at psc until p* (the doping at which the pseudogap temperature reaches 0 K). Analysis of the high-field, low-temperature Hall coefficient reveals a simultaneous reduction in carrier density nH from 1+p → p [1] indicating that coherent quasiparticles are being lost. We report high-field in-plane magnetoresistance (MR) studies of Tl2201 and Bi2201 in which signatures of incoherent transport are observed. In particular, an unexpectedly large linear-in-field MR has been observed at high H and low T that is insensitive to disorder, magnetic-field orientation and obeys quadrature (H/T) scaling [2]. The growth of the magnitude of the linear-in-H MR coincides with the growth of the low-T T-linear resistivity [3]. At p < p* ∼ 0.19, the growth of the linear-in-field MR at high fields persists, yet a dramatic change in the low-field behavior occurs. The quadrature (H/T) power-law scaling that is obeyed for p > p* abruptly cedes to H/T2 scaling as the pseudogap regime is entered [3]. The anticorrelation of the loss of coherent quasiparticles probed via the Hall effect and the growth of the incoherent MR indicates the presence of two charge sectors. Such an anticorrelation naturally prompts the question: from which of these charge sectors does superconductivity emerge? We also present evidence to support the hypothesis that superconductivity emerges from those carriers that exhibit signatures of incoherent transport [4].

*EPSRC (ref. EP/L015544/1, ref. EP/T517872/1, ref. EP/R011141/1), HFML (member of the EMFL, EMFL-EPSRC, ref. EP/N01085X/1), LNCMI, the former FOM (grant no. 16METL01, 'Strange Metals'), ERCl (nos 835279-Catch-22 and 715262-HPSuper).

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Publication: 1. C. Putzke, S. Benhabib, W. Tabis, J. Ayres, Z. Wang, L. Malone, S. Licciardello, J. Lu, T. Kondo, T. Takeuchi, N. E. Hussey, J. R. Cooper, and A. Carrington, Reduced Hall carrier density in the overdoped strange metal regime of cuprate superconductors, Nature Physics 17, 826-831 (2021)
2. J. Ayres*, M. Berben*, M. Čulo, Y.-T. Hsu, E. van Heumen, Y. Huang, J. Zaanen, T. Kondo, T. Takeuchi, J. R. Cooper, C. Putzke, S. Friedemann, A. Carrington, N. E. Hussey, Incoherent transport across the strange metal regime of highly overdoped cuprates, Nature 595, 661-666 (2021)
3. M. Berben*, J. Ayres*, C. Duffy, M. Leroux, I. Gilmutdinov, M. Massoudzadegan, D. Vignolles, Y.-T. Hsu, Y. Huang, T. Kondo, T. Takeuchi, J. R. Cooper, S. Friedemann, A. Carrington, C. Proust, N. E. Hussey, Power-law scaling of the in-plane magnetoresistance in high-Tc cuprates, (in preparation)
4. M. Čulo, C. Duffy, J. Ayres, M. Berben, Y.-T. Hsu, R. D. H. Hinlopen, B. Bernáth, N. E. Hussey, Possible superconductivity from incoherent carriers in overdoped cuprates,
SciPost Phys. 11, 012 (2021)

Presenters

  • Jake Ayres

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
    • University of Bristol

Authors

  • Jake Ayres

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
    • University of Bristol

  • Maarten Berben

    • High Field Magnet Laboratory (HFML-EMFL), Radboud University, Nijmegen, Netherlands.
    • High Field Magnet Laboratory (HFML-EMFL), Netherlands

  • Matija Culo

    • Institut za fiziku, P.O. Box 304, HR-10001 Zagreb, Croatia

  • Yu-Te Hsu

    • High Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, Netherlands
    • High Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and Materials, Radboud University

  • Erik van Heumen

    • Van der Waals–Zeeman Institute, University of Amsterdam, Amsterdam, Netherlands. 5 QSoft, Science, Park 123, Amsterdam, Netherlands
    • University of Amsterdam

  • Yingkai Huang

    • Univ of Amsterdam
    • Van der Waals–Zeeman Institute, University of Amsterdam, Amsterdam, Netherlands. 5 QSoft, Science, Park 123, Amsterdam, Netherlands.
    • University of Amsterdam

  • Jan Zaanen

    • Leiden University

  • Takeshi Kondo

    • Institute for Solid State Physics, University of Tokyo, Kashiwa, Japan.

  • Tsunehiro Takeuchi

    • Toyota Technological Institute, Nagoya, Japan

  • John R Cooper

    • Department of Physics, University of Cambridge, Cambridge, UK.

  • Carsten Putzke

    • Ecole Polytechnique Federale de Lausanne
    • Laboratory of Quantum Materials (QMAT), Institute of Materials (IMX), Ecole Polytechnique Federale de Lausanne (EPFL)

  • Sven Friedemann

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.

  • Antony Carrington

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.

  • Nigel E Hussey

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
    • High Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and Materials, Radboud University; H. H. Wills Physics Laboratory, University of Bristol
    • University of Bristol, United Kingdom & High Field Magnet Laboratory (HFML-EMFL), Netherlands