Neutron-scattering evidence for a periodically modulated superconducting phase in the underdoped cuprate

Zhijun Xu; C. Stock; Songxue Chi; A. I. Kolesnikov; Guangyong Xu; Genda Gu; J. M. Tranquada

doi:10.1103/PhysRevLett.113.177002

Neutron-scattering evidence for a periodically modulated superconducting phase in the underdoped cuprate

Zhijun Xu
, C. Stock
, Songxue Chi
, A. I. Kolesnikov
, Guangyong Xu
, Genda Gu
, J. M. Tranquada

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

23 Scopus citations

Abstract

The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron-scattering evidence that gapless spin fluctuations coexist with superconductivity in La1.905Ba0.095CuO4. Furthermore, we observe that both the low-energy magnetic spectral weight and the spin incommensurability are enhanced with the onset of superconducting correlations. We propose that the coexistence occurs through intertwining of spatial modulations of the pair wave function and the antiferromagnetic correlations. This proposal is also directly relevant to sufficiently underdoped La2-xSrxCuO4 and YBa2Cu3O6+x.

Original language	English
Article number	177002
Journal	Physical Review Letters
Volume	113
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.113.177002
State	Published - Oct 21 2014

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10.1103/PhysRevLett.113.177002

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title = "Neutron-scattering evidence for a periodically modulated superconducting phase in the underdoped cuprate",

abstract = "The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron-scattering evidence that gapless spin fluctuations coexist with superconductivity in La1.905Ba0.095CuO4. Furthermore, we observe that both the low-energy magnetic spectral weight and the spin incommensurability are enhanced with the onset of superconducting correlations. We propose that the coexistence occurs through intertwining of spatial modulations of the pair wave function and the antiferromagnetic correlations. This proposal is also directly relevant to sufficiently underdoped La2-xSrxCuO4 and YBa2Cu3O6+x.",

author = "Zhijun Xu and C. Stock and Songxue Chi and Kolesnikov, \{A. I.\} and Guangyong Xu and Genda Gu and Tranquada, \{J. M.\}",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

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doi = "10.1103/PhysRevLett.113.177002",

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T1 - Neutron-scattering evidence for a periodically modulated superconducting phase in the underdoped cuprate

AU - Xu, Zhijun

AU - Stock, C.

AU - Chi, Songxue

AU - Kolesnikov, A. I.

AU - Xu, Guangyong

AU - Gu, Genda

AU - Tranquada, J. M.

PY - 2014/10/21

Y1 - 2014/10/21

N2 - The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron-scattering evidence that gapless spin fluctuations coexist with superconductivity in La1.905Ba0.095CuO4. Furthermore, we observe that both the low-energy magnetic spectral weight and the spin incommensurability are enhanced with the onset of superconducting correlations. We propose that the coexistence occurs through intertwining of spatial modulations of the pair wave function and the antiferromagnetic correlations. This proposal is also directly relevant to sufficiently underdoped La2-xSrxCuO4 and YBa2Cu3O6+x.

AB - The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron-scattering evidence that gapless spin fluctuations coexist with superconductivity in La1.905Ba0.095CuO4. Furthermore, we observe that both the low-energy magnetic spectral weight and the spin incommensurability are enhanced with the onset of superconducting correlations. We propose that the coexistence occurs through intertwining of spatial modulations of the pair wave function and the antiferromagnetic correlations. This proposal is also directly relevant to sufficiently underdoped La2-xSrxCuO4 and YBa2Cu3O6+x.

UR - https://www.scopus.com/pages/publications/84908147808

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DO - 10.1103/PhysRevLett.113.177002

M3 - Article

AN - SCOPUS:84908147808

SN - 0031-9007

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 177002

ER -

Neutron-scattering evidence for a periodically modulated superconducting phase in the underdoped cuprate

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