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Abstract
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 language | English |
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Article number | 137004 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 13 |
DOIs | |
Publication status | Published - 28 Mar 2013 |
Bibliographical note
Accepted for publication in Physical Review Letters. More data along the a-axis direction is included in this version 2Keywords
- FERMI-SURFACE
- CUPRATE SUPERCONDUCTORS
- QUANTUM OSCILLATIONS
- STRIPE ORDER
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