Strong uni-directional anisotropy in disordered NiFe2O4

Authors
Shi, Y Ding, J Shen, ZX Sun, WX Wang, L
Citation
Y. Shi et al., Strong uni-directional anisotropy in disordered NiFe2O4, SOL ST COMM, 115(5), 2000, pp. 237-241
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
115
Issue
5
Year of publication
2000
Pages
237 - 241
Database
ISI
SICI code
0038-1098(2000)115:5<237:SUAIDN>2.0.ZU;2-A
Abstract
High-energy mechanical milling of spinel NiFe2O4 leads to the formation of a disordered wustite-like structure. Cluster glass behavior was found in th e Mossbauer study. The investigation suggested ferrimagnetic clusters in an antiferromagnetic matrix. The ferrimagnetic and antiferromagnetic exchange coupling results in a strong uni-directional anisotropy and a coercivity o f over 10 kOe after magnetic cooling. (C) 2000 Elsevier Science Ltd. All ri ghts reserved.