Superparamagnetic and ferrimagnetic nanoparticles in glass matrix

Citation
Is. Edelman et al., Superparamagnetic and ferrimagnetic nanoparticles in glass matrix, PHYSICA B, 301(3-4), 2001, pp. 203-211
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
0921-4526 → ACNP
Volume
301
Issue
3-4
Year of publication
2001
Pages
203 - 211
Database
ISI
SICI code
0921-4526(200108)301:3-4<203:SAFNIG>2.0.ZU;2-Z
Abstract
Faraday rotation (FR) spectral, field, and temperature dependencies in oxid e glasses with small additions of paramagnetic elements are investigated. F ormation of ferrite nanoparticles in amorphous glass matrices is revealed b y X-ray diffraction. Particles have crystal structure similar to spinel str ucture, their dimensions are about 10-24 nm. The FR field dependencies are typical for ferrimagnetic or superparamagneti c substances depending on particle size. Strong FR increase at the samples cooling (more than twice for some samples) in the temperature interval 105- 273 K is observed. (C) 2001 Elsevier Science B.V. All rights reserved.