Dynamics of longitudinal and transverse fluctuations abovein EuS
- 1 April 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 43 (10) , 8755-8758
- https://doi.org/10.1103/physrevb.43.8755
Abstract
Using inelastic scattering of polarized neutrons near a finite Bragg reflection, the dynamics of longitudinal δS(q)∥q and transverse δS(q)⊥q spin fluctuations have been measured. The relaxation rates follow rather precisely the dipolar dynamic-scaling function calculated recently by mode-coupling theory based on the Lorentzian approximation. The predicted longitudinal line shape near disagrees with our data.
Keywords
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