Figure 7
Azimuthal angle dependence of the Stokes parameters P1 and P2 for the (001) and (003) superlattice reflections measured in NpO2 at 10 K with E = 3.846 keV. The origin of the azimuthal angle Ψ corresponds to the a-axis lying in the scattering plane. Lines are calculations based on a longitudinal, 3-k order of Γ5 electric quadrupoles with zero ordered magnetic dipole moments. No fitting parameter are involved. Republished with permission of IOP Publishing from Caciuffo et al. (2003); permission conveyed through Copyright Clearance Center, Inc. |