Magnetic field dependent small-angle neutron scattering on a Co nanorod array: evidence for intraparticle spin misalignment

Günther, A.; Bick, J.-P.; Szary, P.; Honecker, D.; Dewhurst, C.D.; Keiderling, U.; Feoktystov, A.V.; Tschöpe, A.; Birringer, R.; Michels, A.

doi:10.1107/S1600576714008413

Figure 4
The two different scattering geometries for magnetic field dependent SANS. (a) H $[\perp]$ k_i geometry: the long rod axes are aligned parallel to the incident neutron beam $[{\bf k}_{{{\rm i}}}||{\bf e}_{x}]$ and perpendicular to the applied magnetic field H. (b) H [||]

k_i geometry: the long rod axes are aligned parallel to the incident neutron beam $[{\bf k}_{{{\rm i}}}||{\bf e}_{z}]$ and parallel to the applied magnetic field H. With reference to equations (1

) and (2

) we emphasize that in both geometries the applied-field direction $[{\bf H}]$ defines the $[{\bf e}_{z}]$ direction of a Cartesian laboratory coordinate system and that $[\tilde{M}_{z}({\bf q})]$ denotes the respective longitudinal magnetization Fourier coefficient, while $[\tilde{M}_{x}({\bf q})]$ and $[\tilde{M}_{y}({\bf q})]$ are the respective transverse components, varying in the e_x e_y plane. The angle θ specifies the orientation of the scattering vector on the two-dimensional detector; it is measured between $[{\bf H}||{\bf e}_{z}]$ and $[{\bf q}\cong]$ (0,q_y,q_z) (a) and between $[{\bf e}_{x}]$ and $[{\bf q}\cong(q_{x},q_{y},0)]$ (b).

JOURNAL OF
APPLIED
CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 47| Part 3| June 2014| Pages 992-998

https://doi.org/10.1107/S1600576714008413

Open

access

Search IUCr Journals		doi		Advanced search
Author		volume	page