Incommensurate Magnetic Fluctuations in YBa{sub 2}Cu{sub 3}O{sub 6.6}
Journal Article
·
· Physical Review Letters
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393 (United States)
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 (United States)
We use inelastic neutron scattering to demonstrate that the low-frequency magnetic fluctuations in YBa{sub 2}Cu {sub 3}O{sub 6.6} (T{sub c}=62.7 K) change from commensurate to incommensurate on cooling with the incommensurability first appearing at temperatures above T{sub c} . For the energies studied, the susceptibility at incommensurate positions increases on cooling below T{sub c} , accompanied by a suppression of the spin fluctuations at the commensurate points. These results suggest that incommensurate spin fluctuations may be a common feature for all cuprate superconductors. {copyright} {ital 1998} {ital The American Physical Society}
- Research Organization:
- Oak Ridge National Laboratory
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 591853
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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