Static and dynamic spin fluctuations in superconducting
- 1 February 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (4), 2868-2871
- https://doi.org/10.1103/physrevb.39.2868
Abstract
We report a neutron scattering study of the spin fluctuations in samples of Cu which are ∼80% superconducting with K. The structure factor reflects three-dimensional modulated spin correlations with an in-plane correlation length of order 18±6 Å. The fluctuations evolve with temperature from being predominantly dynamic at high temperatures to mainly quasielastic ( meV) at low temperatures. No significant differences are observed in the normal and superconducting states.
Keywords
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