Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1590783 | Science and Technology of Advanced Materials | 2007 | 5 Pages |
Abstract
We report on inelastic neutron scattering experiments on YbRh2Si2 powder to study the low-energy spin dynamics at temperatures between T=0.8 and 22Â K. The low-energy magnetic response is quasielastic. However, it exhibits an unusual form not modelled by a simple relaxation rate yielding a Lorentzian lineshape, but can satisfactorily be described by a phenomenological model involving a distribution of relaxation rates. The lower bound of the relaxation rates varies roughly linear with temperature indicating a pronounced slowing down of the critical modes above the antiferromagnetic ordering temperature TNâ70mK.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
O. Stockert, M.M. Koza, J. Ferstl, C. Geibel, F. Steglich,