Article (Scientific journals)
Measurement of a magnetic-field dependent correlation length in nanocrystalline Ni using small-angle neutron scattering
MICHELS, Andreas; Weissmüller, J.; Erb, U. et al.
2002In Physica Status Solidi A. Applied Research, 189, p. 509-513
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Abstract :
[en] We have analyzed magnetic-field dependent small-angle neutron scattering data on nanocrystalline electrodeposited Ni by means of the correlation function of the spin misalignment. The approach yields a correlation length lC of the spin misalignment that is a measure for the characteristic dimension of regions in which the magnetic moments are misaligned coherently into a common direction. We find that lC varies strongly with the applied magnetic field Hi with values extending from about 50 nm (larger than the value for uniformly magnetized grains) at small Hi to about 10 nm (considerably smaller than the grain size) at large applied fields.
Disciplines :
Physics
Identifiers :
UNILU:UL-ARTICLE-2010-521
Author, co-author :
MICHELS, Andreas  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Weissmüller, J.
Erb, U.
Barker, J. G.
Language :
English
Title :
Measurement of a magnetic-field dependent correlation length in nanocrystalline Ni using small-angle neutron scattering
Publication date :
2002
Journal title :
Physica Status Solidi A. Applied Research
ISSN :
0031-8965
eISSN :
1521-396X
Publisher :
Wiley-VCH, Berlin, Germany
Volume :
189
Pages :
509-513
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 24 April 2013

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