Universal precursor of superconductivity in the cuprates

Guichuan Yu; D. D. Xia; D. Pelc; R. H. He; N. H. Kaneko; T. Sasagawa; Y. Li; X. Zhao; N. Barišić; A. Shekhter; Martin Greven

doi:10.1103/PhysRevB.99.214502

Universal precursor of superconductivity in the cuprates

Guichuan Yu, D. D. Xia, D. Pelc, R. H. He, N. H. Kaneko, T. Sasagawa, Y. Li, X. Zhao, N. Barišić, A. Shekhter, Martin Greven

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

27 Scopus citations

Abstract

Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlinear diamagnetism above Tc in four distinct compounds: single-CuO2-layer HgBa2CuO4+δ, La2-xSrxCuO4 and Bi2(Sr,La)2CuO6+δ, and double-layer Bi2Sr2Ca0.95Y0.05Cu2O8+δ. We find that SC diamagnetism vanishes in an exponential manner, characterized by a universal temperature scale that is approximately independent of compound and Tc. We discuss the possibility that this unusual behavior signifies the proliferation of SC clusters as a result of intrinsic inhomogeneity inherent to the cuprates.

Original language	English (US)
Article number	214502
Journal	Physical Review B
Volume	99
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.99.214502
State	Published - Jun 10 2019

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title = "Universal precursor of superconductivity in the cuprates",

abstract = "Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlinear diamagnetism above Tc in four distinct compounds: single-CuO2-layer HgBa2CuO4+δ, La2-xSrxCuO4 and Bi2(Sr,La)2CuO6+δ, and double-layer Bi2Sr2Ca0.95Y0.05Cu2O8+δ. We find that SC diamagnetism vanishes in an exponential manner, characterized by a universal temperature scale that is approximately independent of compound and Tc. We discuss the possibility that this unusual behavior signifies the proliferation of SC clusters as a result of intrinsic inhomogeneity inherent to the cuprates.",

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T1 - Universal precursor of superconductivity in the cuprates

AU - Yu, Guichuan

AU - Xia, D. D.

AU - Pelc, D.

AU - He, R. H.

AU - Kaneko, N. H.

AU - Sasagawa, T.

AU - Li, Y.

AU - Zhao, X.

AU - Barišić, N.

AU - Shekhter, A.

AU - Greven, Martin

PY - 2019/6/10

Y1 - 2019/6/10

N2 - Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlinear diamagnetism above Tc in four distinct compounds: single-CuO2-layer HgBa2CuO4+δ, La2-xSrxCuO4 and Bi2(Sr,La)2CuO6+δ, and double-layer Bi2Sr2Ca0.95Y0.05Cu2O8+δ. We find that SC diamagnetism vanishes in an exponential manner, characterized by a universal temperature scale that is approximately independent of compound and Tc. We discuss the possibility that this unusual behavior signifies the proliferation of SC clusters as a result of intrinsic inhomogeneity inherent to the cuprates.

AB - Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlinear diamagnetism above Tc in four distinct compounds: single-CuO2-layer HgBa2CuO4+δ, La2-xSrxCuO4 and Bi2(Sr,La)2CuO6+δ, and double-layer Bi2Sr2Ca0.95Y0.05Cu2O8+δ. We find that SC diamagnetism vanishes in an exponential manner, characterized by a universal temperature scale that is approximately independent of compound and Tc. We discuss the possibility that this unusual behavior signifies the proliferation of SC clusters as a result of intrinsic inhomogeneity inherent to the cuprates.

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Universal precursor of superconductivity in the cuprates

Abstract

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University of Minnesota MRSEC (DMR-1420013)

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Universal precursor of superconductivity in the cuprates

Abstract

Bibliographical note

MRSEC Support

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University of Minnesota MRSEC (DMR-1420013)

MRSEC IRG-1: Electrostatic Control of Materials

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