Polarized Neutron Scattering Study of the Spin-wave Excitations in the 3-k Ordered Phase of Uranium Antimonide

The anisotropy of magnetic fluctuations propagating along the [1 1 0] direction in the ordered phase of uranium antimonide has been studied by applying the spherical neutron-spin polarimetry technique to inelastic neutron scattering. The observed polarization behavior of the spin waves is a natural consequence of the longitudinal 3-k magnetic structure; together with recent results on the 3-k-transverse uranium dioxide, these findings establish this technique as an important tool to study complex magnetic arrangements. Selected details of the magnon excitation spectra of USb have also been reinvestigated with polarized neutrons, indicating the need to revise the currently accepted theoretical picture for this material.

MAGNANI Nicola;  CACIUFFO Roberto;  LANDER G.H.;  HIESS A.;  REGNAULT L.P.; 

2010-03-16

IOP PUBLISHING LTD

JRC55227

0953-8984,   

http://iopscience.iop.org/0953-8984/22/11/116002/,    https://publications.jrc.ec.europa.eu/repository/handle/JRC55227,   

10.1088/0953-8984/22/11/116002,