Abstract
Commensurate antiferromagnetic ordering has been observed in the superconducting high-T-c. cuprate YBa2Cu3O6.5 (T-c = 55 K) by polarized and unpolarized elastic neutron scattering. The magnetic peak intensity exhibits a marked enhancement at T-c. 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.
Original language | English |
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Journal | Physical Review Letters |
Volume | 86 |
Issue number | 18 |
Pages (from-to) | 4100-4103 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 2001 |