MOSSBAUER STUDY OF AEROGEL-SYNTHESIZED GE-FE-OXIDE WITH T-N NEAR 260 K

Authors
HAMDEH HH BARGHOUT K HO JC WILLEY RJ OSHEA MJ
Citation
Hh. Hamdeh et al., MOSSBAUER STUDY OF AEROGEL-SYNTHESIZED GE-FE-OXIDE WITH T-N NEAR 260 K, Journal of magnetism and magnetic materials, 186(3), 1998, pp. 377-380
Citations number
10
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
186
Issue
3
Year of publication
1998
Pages
377 - 380
Database
ISI
SICI code
0304-8853(1998)186:3<377:MSOAGW>2.0.ZU;2-0
Abstract
Fine powders with nominal composition of GeFe2Ox were synthesized by t he aerogel method. The highly heterogeneous material comprises of smal l crystallites, not larger than 3 nm, in a mixture of amorphous matrix . Nevertheless, Mossbauer spectroscopy indicates that the Fe ions in m any different environments in the calcined product undergo simultaneou sly an antiferromagnetic transition near 265 K. (C) 1998 Elsevier Scie nce B.V. All rights reserved.