Magnetic small-angle neutron scattering by nanocrystalline terbium

Authors
Weissmuller, J Michels, D Michels, A Wiedenmann, A Krill, CE Sauer, HM Birringer, R
Citation
J. Weissmuller et al., Magnetic small-angle neutron scattering by nanocrystalline terbium, SCR MATER, 44(8-9), 2001, pp. 2357-2361
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
SCRIPTA MATERIALIA
ISSN journal
13596462 → ACNP
Volume
44
Issue
8-9
Year of publication
2001
Pages
2357 - 2361
Database
ISI
SICI code
1359-6462(20010518)44:8-9<2357:MSNSBN>2.0.ZU;2-Y
Abstract
We present an experimental study of the magnetic microstructure in the nano crystalline hard magnet Tb. Field-dependent SANS data are analyzed quantita tively in terms of the correlation function of the spin misalignment. We fi nd that up to applied fields of several Tesla the magnetization remains 'lo cked in' to the basal planes of the hcp crystal lattice of each individual crystallite: But that the in-plane orientation of the spins is highly nonun iform within each particle. This internal structure can be suppressed by th e applied field. (C) 2001 Acta Materialia Inc. Published by Elsevier Scienc e Ltd. All rights reserved.