Two-dimensional geometry of spin excitations in the high-transition-temperature superconductor YBa2Cu3O6+x

V. Hinkov, S. Pailhès, P. Bourges, Y. Sidis, A. Ivanov, A. Kulakov, C. T. Lin, D. P. Chen, C. Bernhard and B. Keimer ()
Additional contact information
V. Hinkov: Max-Planck-Institut für Festkörperforschung
S. Pailhès: Laboratoire Léon Brillouin, CEA-CNRS, CE-Saclay
P. Bourges: Laboratoire Léon Brillouin, CEA-CNRS, CE-Saclay
Y. Sidis: Laboratoire Léon Brillouin, CEA-CNRS, CE-Saclay
A. Ivanov: Institut Laue-Langevin, 156X
A. Kulakov: Max-Planck-Institut für Festkörperforschung
C. T. Lin: Max-Planck-Institut für Festkörperforschung
D. P. Chen: Max-Planck-Institut für Festkörperforschung
C. Bernhard: Max-Planck-Institut für Festkörperforschung
B. Keimer: Max-Planck-Institut für Festkörperforschung

Nature, 2004, vol. 430, issue 7000, 650-654

Abstract: Abstract The fundamental building block of the copper oxide superconductors is a Cu4O4 square plaquette. The plaquettes in most of these materials are slightly distorted to form a rectangular lattice, for which an influential theory predicts that high-transition-temperature (high-Tc) superconductivity is nucleated in ‘stripes’ aligned along one of the axes1,2,3. This theory received strong support from experiments that indicated a one-dimensional character for the magnetic excitations in the high-Tc material YBa2Cu3O6.6 (ref. 4). Here we report neutron scattering data on ‘untwinned’ YBa2Cu3O6+x crystals, in which the orientation of the rectangular lattice is maintained throughout the entire volume. Contrary to the earlier claim4, we demonstrate that the geometry of the magnetic fluctuations is two-dimensional. Rigid stripe arrays therefore appear to be ruled out over a wide range of doping levels in YBa2Cu3O6+x, but the data may be consistent with liquid-crystalline stripe order5. The debate about stripes has therefore been reopened.

Date: 2004
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature02774 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:430:y:2004:i:7000:d:10.1038_nature02774

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature02774

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().