STRONG CRITICAL FLUCTUATIONS IN DOMAIN-WALLS IN SR HEXAFERRITE - EFFECT OF MAGNETIC-FIELDS

Authors
MALANG M GARANIN D KOTZLER J
Citation
M. Malang et al., STRONG CRITICAL FLUCTUATIONS IN DOMAIN-WALLS IN SR HEXAFERRITE - EFFECT OF MAGNETIC-FIELDS, Journal of magnetism and magnetic materials, 140, 1995, pp. 1873-1874
Citations number
11
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
140
Year of publication
1995
Part
3
Pages
1873 - 1874
Database
ISI
SICI code
0304-8853(1995)140:<1873:SCFIDI>2.0.ZU;2-G
Abstract
The domain wall (DW) relaxation rate Gamma(W) of the uniaxial Sr hexaf errite in the region 0.9T(C) less than or equal to T-C = 740 K, displa ys a deep minimum at T = 0.99T(C) due to a continuous 2D phase transit ion from Bloch to linear domain walls. In fields parallel to the easy axis, Gamma(W) is reduced by the increase of the DW spacing d, whereas a perpendicular field increases Gamma(W). This feature is associated with the increase of the DW order parameter m(B) with the field near t he transition.