Anisotropy of the Incommensurate Fluctuations inSr2RuO4: A Study with Polarized Neutrons

M. Braden, P. Steffens, Y. Sidis, J. Kulda, P. Bourges, S. Hayden, N. Kikugawa, Y. Maeno
2004 Physical Review Letters  
The anisotropy of the magnetic incommensurate fluctuations in Sr2RuO4 has been studied by inelastic neutron scattering with polarized neutrons. We find a sizeable enhancement of the out of plane component by a factor of two for intermediate energy transfer which appears to decrease for higher energies. Our results qualitatively confirm calculations of the spin-orbit coupling, but the experimental anisotropy and its energy dependence are weaker than predicted.
doi:10.1103/physrevlett.92.097402 pmid:15089512 fatcat:af6nwejzxzc6nhy2krwx6bgan4