Polarization analysis of the inelastic magnetic scattering in Sr2RuO4
B. Fak, S. Raymond, F. Servant, P. Lejay, J. Flouquet
Abstract
The spin fluctuations in the normal state of the unconventional superconductor Sr2RuO4 have been studied using inelastic neutron scattering with polarization analysis on single crystals. We find that the spin fluctuations are anisotropic with chic/chiab=2.0 (0.4). No evidence for Q-independent or nearly-ferromagnetic spin fluctuations are found in the energy range 4-22 meV, in contradiction with NMR measurements.
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