X-Ray Diffraction Observations of a Charge-Density-Wave Order in Superconducting Ortho-II YBa2Cu3O6.54 Single Crystals in Zero Magnetic Field

E. Blackburn*, J. Chang, M. Huecker, A. T. Holmes, N. B. Christensen, Ruixing Liang, D. A. Bonn, W. N. Hardy, U. Ruett, O. Gutowski, M. v Zimmermann, E. M. Forgan, S. M. Hayden

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

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X-ray diffraction measurements show that the high-temperature superconductor YBa2Cu3O6.54, with ortho-II oxygen order, has charge-density-wave order in the absence of an applied magnetic field. The dominant wave vector of the charge density wave is q(CDW) = (0, 0.328(2), 0.5), with the in-plane component parallel to the b axis (chain direction). It has a similar incommensurability to that observed in ortho-VIII and ortho-III samples, which have different dopings and oxygen orderings. Our results for ortho-II contrast with recent high-field NMR measurements, which suggest a commensurate wave vector along the a axis. We discuss the relationship between spin and charge correlations in YBa2Cu3Oy and recent high-field quantum oscillation, NMR, and ultrasound experiments. DOI: 10.1103/PhysRevLett.110.137004

Original languageEnglish
Article number137004
Number of pages5
JournalPhysical Review Letters
Issue number13
Publication statusPublished - 28 Mar 2013

Bibliographical note

Accepted for publication in Physical Review Letters. More data along the a-axis direction is included in this version 2



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