The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction

E M Forgan; E Blackburn; A T Holmes; A K R Briffa; J Chang; L Bouchenoire; Ruixing Liang; D Bonn; W N Hardy; N B Christensen; M V Zimmermann; M Hücker; S M Hayden; Simon D Brown

doi:10.1038/ncomms10064

The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction

E M Forgan
, E Blackburn
, A T Holmes
, A K R Briffa
, J Chang
, L Bouchenoire
, Ruixing Liang
, D Bonn
, W N Hardy
, N B Christensen
, M V Zimmermann
, M Hücker
, S M Hayden
, Simon D Brown

Physics and Astronomy

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

47 Citations (Scopus)

206 Downloads (Pure)

Abstract

Charge density wave (CDW) order appears throughout the underdoped high-temperature cuprate superconductors, but the underlying symmetry breaking and the origin of the CDW remain unclear. We use X-ray diffraction to determine the microscopic structure of the CDWs in an archetypical cuprate YBa2Cu3O6.54 at its superconducting transition temperature ∼60 K. We find that the CDWs in this material break the mirror symmetry of the CuO2 bilayers. The ionic displacements in the CDWs have two components, which are perpendicular and parallel to the CuO2 planes, and are out of phase with each other. The planar oxygen atoms have the largest displacements, perpendicular to the CuO2 planes. Our results allow many electronic properties of the underdoped cuprates to be understood. For instance, the CDWs will lead to local variations in the electronic structure, giving an explicit explanation of density-wave states with broken symmetry observed in scanning tunnelling microscopy and soft X-ray measurements.

Original language	English
Article number	10064
Journal	Nature Communications
Volume	6
DOIs	https://doi.org/10.1038/ncomms10064
Publication status	Published - 9 Dec 2015

ASJC Scopus subject areas

Condensed Matter Physics

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Scattering Studies of Emergent Phenomena at Extreme Conditions of Magnetic Field and Temperature
Blackburn, E. (Principal Investigator) & Forgan, T. (Co-Investigator)
Engineering & Physical Science Research Council
1/07/12 → 31/12/15
Project: Research
Magnetic Flux Structures and Phase Transitions in Unconventional and Conventional Superconductors
Forgan, T. (Principal Investigator) & Blackburn, E. (Co-Investigator)
Engineering & Physical Science Research Council
1/04/09 → 30/09/12
Project: Research Councils

Colloquium: Where does high-temperature superconductivity come from?
Blackburn, E. (Invited speaker)
1 Dec 2017
Activity: Academic and Industrial events › Guest lecture or Invited talk

Cite this

Forgan, E. M., Blackburn, E., Holmes, A. T., Briffa, A. K. R., Chang, J., Bouchenoire, L., Liang, R., Bonn, D., Hardy, W. N., Christensen, N. B., Zimmermann, M. V., Hücker, M., Hayden, S. M., & Brown, S. D. (2015). The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction. Nature Communications, 6, Article 10064. https://doi.org/10.1038/ncomms10064

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title = "The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction",

abstract = "Charge density wave (CDW) order appears throughout the underdoped high-temperature cuprate superconductors, but the underlying symmetry breaking and the origin of the CDW remain unclear. We use X-ray diffraction to determine the microscopic structure of the CDWs in an archetypical cuprate YBa2Cu3O6.54 at its superconducting transition temperature ∼60 K. We find that the CDWs in this material break the mirror symmetry of the CuO2 bilayers. The ionic displacements in the CDWs have two components, which are perpendicular and parallel to the CuO2 planes, and are out of phase with each other. The planar oxygen atoms have the largest displacements, perpendicular to the CuO2 planes. Our results allow many electronic properties of the underdoped cuprates to be understood. For instance, the CDWs will lead to local variations in the electronic structure, giving an explicit explanation of density-wave states with broken symmetry observed in scanning tunnelling microscopy and soft X-ray measurements.",

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AU - Forgan, E M

AU - Blackburn, E

AU - Holmes, A T

AU - Briffa, A K R

AU - Chang, J

AU - Bouchenoire, L

AU - Liang, Ruixing

AU - Bonn, D

AU - Hardy, W N

AU - Christensen, N B

AU - Zimmermann, M V

AU - Hücker, M

AU - Hayden, S M

AU - Brown, Simon D

PY - 2015/12/9

Y1 - 2015/12/9

N2 - Charge density wave (CDW) order appears throughout the underdoped high-temperature cuprate superconductors, but the underlying symmetry breaking and the origin of the CDW remain unclear. We use X-ray diffraction to determine the microscopic structure of the CDWs in an archetypical cuprate YBa2Cu3O6.54 at its superconducting transition temperature ∼60 K. We find that the CDWs in this material break the mirror symmetry of the CuO2 bilayers. The ionic displacements in the CDWs have two components, which are perpendicular and parallel to the CuO2 planes, and are out of phase with each other. The planar oxygen atoms have the largest displacements, perpendicular to the CuO2 planes. Our results allow many electronic properties of the underdoped cuprates to be understood. For instance, the CDWs will lead to local variations in the electronic structure, giving an explicit explanation of density-wave states with broken symmetry observed in scanning tunnelling microscopy and soft X-ray measurements.

AB - Charge density wave (CDW) order appears throughout the underdoped high-temperature cuprate superconductors, but the underlying symmetry breaking and the origin of the CDW remain unclear. We use X-ray diffraction to determine the microscopic structure of the CDWs in an archetypical cuprate YBa2Cu3O6.54 at its superconducting transition temperature ∼60 K. We find that the CDWs in this material break the mirror symmetry of the CuO2 bilayers. The ionic displacements in the CDWs have two components, which are perpendicular and parallel to the CuO2 planes, and are out of phase with each other. The planar oxygen atoms have the largest displacements, perpendicular to the CuO2 planes. Our results allow many electronic properties of the underdoped cuprates to be understood. For instance, the CDWs will lead to local variations in the electronic structure, giving an explicit explanation of density-wave states with broken symmetry observed in scanning tunnelling microscopy and soft X-ray measurements.

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SN - 2041-1723

VL - 6

JO - Nature Communications

JF - Nature Communications

M1 - 10064

ER -

The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction

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