COERCIVE FIELD AND DOMAIN-WALL PROPERTIES IN (DYXY1-X)FE2 AND (ERXY1-X)FE2 INTERMETALLIC COMPOUNDS

Authors
ALVES KMB SAMPAIO LC GUIMARAES AP DACUNHA SF
Citation
Kmb. Alves et al., COERCIVE FIELD AND DOMAIN-WALL PROPERTIES IN (DYXY1-X)FE2 AND (ERXY1-X)FE2 INTERMETALLIC COMPOUNDS, Journal of alloys and compounds, 210(1-2), 1994, pp. 325-330
Citations number
15
Categorie Soggetti
Chemistry Physical","Metallurgy & Mining","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
210
Issue
1-2
Year of publication
1994
Pages
325 - 330
Database
ISI
SICI code
0925-8388(1994)210:1-2<325:CFADPI>2.0.ZU;2-A
Abstract
Isothermal d.c. magnetization measurements were performed for (RxY1-x) Fe2 (R = Dy, Er, 0 < x < 1) at several temperatures. The observed pron ounced decay of the coercive field H(c) with temperature was fitted wi th an exponential curve at low temperatures for - concentrations near 30%. The coercive field H(c) and the propagation field H(p) showed max imum values in the concentration range 30%-40% for Dy or Er. These res ults can be explained by intrinsic domain wall pinning. Time relaxatio n effects of the remanent magnetization were detected and attributed t o domain wall surface deformations.