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The Vanishing Superfluid Density in Cuprates—and Why It Matters

  • I. Božović
  • X. He
  • J. Wu
  • A. T. Bollinger
Review Paper
  • 18 Downloads

Abstract

Recently, we have released the results of a comprehensive study of a couple thousand single-crystal La2−xSrxCuO4 films, covering densely the entire overdoped side of the phase diagram (Božović et al. Nature 536, 309–311, 2016; Wu et al. Nature 547, 432–435, 2017). Here, we review the key experimental findings, place them in the context of other important well-established facts and observations, and discuss their implications for our understanding of high-temperature superconductivity in cuprates. We conclude that it involves some new physics that requires going beyond the standard Fermi liquid description of the normal state and Bardeen-Cooper-Schrieffer description of the superconducting state.

Keywords

High-temperature superconductivity Cuprate Thin films Molecular beam epitaxy Superfluid density 

Notes

Acknowledgments

This research was done at BNL and was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division.

Funding Information

X.H. is supported by the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4410.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • I. Božović
    • 1
    • 2
  • X. He
    • 1
    • 2
  • J. Wu
    • 1
  • A. T. Bollinger
    • 1
  1. 1.Brookhaven National LaboratoryUptonUSA
  2. 2.Department of Applied PhysicsYale UniversityNew HavenUSA

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