Article (Scientific journals)
Measuring the exchange-stiffness constant of nanocrystalline solids by elastic small-angle neutron scattering
MICHELS, Andreas; Weissmüller, J.; Wiedenmann, A. et al.
2000In Philosophical Magazine Letters, 80, p. 785 - 792
Peer reviewed
 

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Abstract :
[en] In ferromagnets with a non-uniform magnetocrystalline and/or magnetoelastic anisotropy, such as nanocrystalline or cold-worked polycrystalline materials, the static magnetic microstructure gives rise to elastic magnetic small-angle neutron scattering (SANS). The paper explores a method for determining the exchange-stiffness constant A by analysis of the dependence of the elastic SANS cross-section on the applied magnetic field. Experimental results for A and for the spin-wave stiffness constant D in cold-worked or nanocrystalline Ni and Co are found to agree with literature data obtained by inelastic neutron scattering on single-crystal specimens.
Disciplines :
Physics
Identifiers :
UNILU:UL-ARTICLE-2010-462
Author, co-author :
MICHELS, Andreas  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Weissmüller, J.
Wiedenmann, A.
Pedersen, J. S.
Barker, J. G.
Language :
English
Title :
Measuring the exchange-stiffness constant of nanocrystalline solids by elastic small-angle neutron scattering
Publication date :
2000
Journal title :
Philosophical Magazine Letters
ISSN :
0950-0839
Publisher :
Taylor & Francis Ltd
Volume :
80
Pages :
785 - 792
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 24 April 2013

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