Article (Scientific journals)
Transverse and longitudinal spin-fluctuations in INVAR Fe0.65Ni0.35.
Stewart, J. Ross; Giblin, Sean R.; Honecker, Dirk et al.
2019In Journal of physics. Condensed matter : an Institute of Physics journal, 31 (2), p. 025802
Peer reviewed
 

Files


Full Text
Stewart_Invar_JPCM2019.pdf
Publisher postprint (2.2 MB)
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Abstract :
[en] The presence of spin-fluctuations deep within the ordered state of ferromagnetic [Formula: see text] alloy [Formula: see text] has long been suspected but seldom directly observed. Inhomogeneities of one type or another have been cited as important in stabilizing [Formula: see text] behaviour-either longitudinal spin-fluctuations associated with the [Formula: see text]-state (local environment) model or transverse magnetisation arising from non-collinear spin structures. In this study we employ small-angle neutron scattering with neutron polarization analysis to distinguish between the two possibilities. Surprisingly we in fact find evidence of dominant but uncorrelated longitudinal spin-fluctuations coexisting with transverse magnetisation which exists in short-range clusters of size ~[Formula: see text]. This finding supports recent first principles calculations of [Formula: see text] in which both longitudinal spin-fluctuations and magnetic short-range order are identified as important ingredients in reproducing the equilibrium [Formula: see text] lattice.
Disciplines :
Physics
Author, co-author :
Stewart, J. Ross
Giblin, Sean R.
Honecker, Dirk ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Fouquet, Peter
Prabhakaran, Dharmalingam
Taylor, Jonathan W.
External co-authors :
yes
Language :
English
Title :
Transverse and longitudinal spin-fluctuations in INVAR Fe0.65Ni0.35.
Publication date :
2019
Journal title :
Journal of physics. Condensed matter : an Institute of Physics journal
ISSN :
0953-8984
eISSN :
1361-648X
Volume :
31
Issue :
2
Pages :
025802
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 03 December 2019

Statistics


Number of views
49 (1 by Unilu)
Number of downloads
126 (0 by Unilu)

Scopus citations®
 
5
Scopus citations®
without self-citations
4
WoS citations
 
3

Bibliography


Similar publications



Contact ORBilu