Antiferromagnetic ordering in superconducting YBa2Cu3O6.5

Authors
Sidis, Y Ulrich, C Bourges, P Bernhard, C Niedermayer, C Regnault, LP Andersen, NH Keimer, B
Citation
Y. Sidis et al., Antiferromagnetic ordering in superconducting YBa2Cu3O6.5, PHYS REV L, 86(18), 2001, pp. 4100-4103
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
18
Year of publication
2001
Pages
4100 - 4103
Database
ISI
SICI code
0031-9007(20010430)86:18<4100:AOISY>2.0.ZU;2-H
Abstract
Commensurate antiferromagnetic ordering has been observed in the supercondu cting high-T-c. cuprate YBa2Cu3O6.5 (T-c = 55 K) by polarized and unpolariz ed elastic neutron scattering. The magnetic peak intensity exhibits a marke d enhancement at T-c. Zero-field muon-spin-resonance experiments demonstrat e that the staggered magnetization is not truly static but fluctuates on a nanosecond time scale. These results point towards an unusual spin density wave state coexisting with superconductivity.