Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary

H. Takagi; R. J. Cava; M. Marezio; B. Batlogg; J. J. Krajewski; W. F. Peck; P. Bordet; D. E. Cox

doi:10.1103/PhysRevLett.68.3777

Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary

H. Takagi, R. J. Cava, M. Marezio, B. Batlogg, J. J. Krajewski, W. F. Peck, P. Bordet, D. E. Cox

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207 Scopus citations

Abstract

The electronic and structural phase diagram of heavily doped La2-xSrxCuO4 (0.15x0.3) is reexamined. We demonstrate that the disappearance of superconductivity in overdoped La2-xSrxCuO4 is associated with an orthorhombic to tetragonal structural phase transition near x=0.2, implying a relationship between superconductivity and subtle structural change. The bulk superconducting phase is thus confined to a much narrower composition range than believed. A complete solid solution of La and Sr is observed in the composition range investigated.

Original language	English (US)
Pages (from-to)	3777-3780
Number of pages	4
Journal	Physical review letters
Volume	68
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.68.3777
State	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.68.3777

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title = "Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary",

abstract = "The electronic and structural phase diagram of heavily doped La2-xSrxCuO4 (0.15x0.3) is reexamined. We demonstrate that the disappearance of superconductivity in overdoped La2-xSrxCuO4 is associated with an orthorhombic to tetragonal structural phase transition near x=0.2, implying a relationship between superconductivity and subtle structural change. The bulk superconducting phase is thus confined to a much narrower composition range than believed. A complete solid solution of La and Sr is observed in the composition range investigated.",

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T1 - Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary

AU - Takagi, H.

AU - Cava, R. J.

AU - Marezio, M.

AU - Batlogg, B.

AU - Krajewski, J. J.

AU - Peck, W. F.

AU - Bordet, P.

AU - Cox, D. E.

PY - 1992

Y1 - 1992

N2 - The electronic and structural phase diagram of heavily doped La2-xSrxCuO4 (0.15x0.3) is reexamined. We demonstrate that the disappearance of superconductivity in overdoped La2-xSrxCuO4 is associated with an orthorhombic to tetragonal structural phase transition near x=0.2, implying a relationship between superconductivity and subtle structural change. The bulk superconducting phase is thus confined to a much narrower composition range than believed. A complete solid solution of La and Sr is observed in the composition range investigated.

AB - The electronic and structural phase diagram of heavily doped La2-xSrxCuO4 (0.15x0.3) is reexamined. We demonstrate that the disappearance of superconductivity in overdoped La2-xSrxCuO4 is associated with an orthorhombic to tetragonal structural phase transition near x=0.2, implying a relationship between superconductivity and subtle structural change. The bulk superconducting phase is thus confined to a much narrower composition range than believed. A complete solid solution of La and Sr is observed in the composition range investigated.

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Disappearance of superconductivity in overdoped La2-xSrxCuO4 at a structural phase boundary

Abstract

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