MAGNETIC-ANISOTROPY OF A SYSTEM OF NANOCRYSTALLINE BAO-CENTER-DOT-6FE(2)O(3) PARTICLES

Authors
GOLUBENKO ZV OLKHOVIK LP POPKOV YA SIZOVA ZI KAMZIN AS
Citation
Zv. Golubenko et al., MAGNETIC-ANISOTROPY OF A SYSTEM OF NANOCRYSTALLINE BAO-CENTER-DOT-6FE(2)O(3) PARTICLES, Physics of the solid state, 40(10), 1998, pp. 1718-1720
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
40
Issue
10
Year of publication
1998
Pages
1718 - 1720
Database
ISI
SICI code
1063-7834(1998)40:10<1718:MOASON>2.0.ZU;2-#
Abstract
The anisotropy of a system of barium ferrite particles with an average diameter of 60 nm has been studied. The effective anisotropy constant has been determined in the temperature range from 4.2 K to T-c by the law governing approach to saturation magnetization. The observed devi ation from the magnetocrystalline anisotropy constant is explained as due to a negative contribution of the ''surface'' anisotropy constant. An estimate is made of this contribution as a function of particle si ze. (C) 1998 American Institute of Physics. [S1063-7834(98)02610-0].