Antiferromagnetic ordering in superconducting YBa2Cu3O6.5 |
| |
| Authors: | Sidis Y Ulrich C Bourges P Bernhard C Niedermayer C Regnault L P Andersen N H Keimer B |
| |
| Institution: | Laboratoire Léon Brillouin, CEA-CNRS, CE Saclay, 91191 Gif sur Yvette, France. |
| |
| Abstract: | Commensurate antiferromagnetic ordering has been observed in the superconducting high- Tc cuprate YBa2Cu3O6.5 ( Tc = 55 K) by polarized and unpolarized elastic neutron scattering. The magnetic peak intensity exhibits a marked enhancement at Tc. Zero-field muon-spin-resonance experiments demonstrate 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. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
