KIT | KIT-Bibliothek | Impressum | Datenschutz

Charge Density Waves in YBa₂Cu₃O₆$_{.}$₆₇ Probed by Resonant X-Ray Scattering under Uniaxial Compression

Kim, H.-H.; Lefrançois, E.; Kummer, K.; Fumagalli, R.; Brookes, N. B.; Betto, D.; Nakata, S.; Tortora, M.; Porras, J.; Loew, T.; Barber, M. E.; Braicovich, L.; Mackenzie, A. P.; Hicks, C. W.; Keimer, B.; Minola, M.; Le Tacon, M. 1
1 Institut für Quantenmaterialien und -technologien (IQMT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):
We report a comprehensive CuL3-edge resonant x-ray scattering (RXS) study of two- and three-dimensional (2D and 3D) incommensurate charge correlations in single crystals of the underdoped high-temperature superconductor YBa2Cu3O6.67under uniaxial compression up to 1% along the twoinequivalent Cu─O─Cu bond directions (aandb) in the CuO2planes. We confirm the strong in-planeanisotropy of the 2D charge correlations and observe their symmetric response to pressure: pressure alongaenhances correlations alongb, and vice versa. Our results imply that the underlying order parameter isuniaxial. In contrast, 3D long-range charge order is only observed alongbin response to compression alonga. Spectroscopic RXS measurements show that the 3D charge order resides exclusively in the CuO2planesand may thus be generic to the cuprates. We discuss implications of these results for models of electronicnematicity and for the interplay between charge order and superconductivity

DOI: 10.1103/PhysRevLett.126.037002
Zitationen: 9
Zitationen: 11
Zugehörige Institution(en) am KIT Institut für Quantenmaterialien und -technologien (IQMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2021
Sprache Englisch
Identifikator ISSN: 0031-9007, 1079-7114
KITopen-ID: 1000128871
HGF-Programm 47.11.02 (POF IV, LK 01) Emergent Quantum Phenomena
Weitere HGF-Programme 43.21.01 (POF III, LK 01) Quantum Correlations in Condensed Matter
Erschienen in Physical review letters
Verlag American Physical Society (APS)
Band 126
Heft 3
Seiten Article no: 037002
Vorab online veröffentlicht am 21.01.2021
Nachgewiesen in Dimensions
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page