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Autocorrelation function of the spin misalignment in magnetic small‐angle neutron scattering: application to nanocrystalline metals
Author(s) -
Michels Andreas,
Bick JensPeter
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889813005402
Subject(s) - small angle neutron scattering , nanocrystalline material , neutron scattering , condensed matter physics , spin (aerodynamics) , small angle scattering , autocorrelation , radius , materials science , scattering , physics , optics , nanotechnology , thermodynamics , mathematics , statistics , computer security , computer science
Real‐space magnetic small‐angle neutron scattering data from nanocrystalline cobalt and nickel have been analysed in terms of a recently developed micromagnetic theory for the autocorrelation function of the spin misalignment [Michels (2010). Phys. Rev. B , 82 , 024433]. The approach provides information on the exchange‐stiffness constant and on the mean magnetic `anisotropy‐field' radius.