MUON-SPIN-RELAXATION STUDY OF THE CRITICAL LONGITUDINAL SPIN DYNAMICSIN A DIPOLAR HEISENBERG-FERROMAGNET

Authors
YAOUANC A DEREOTIER PD GUBBENS PCM MULDERS AM KAYZEL FE FRANSE JJM
Citation
A. Yaouanc et al., MUON-SPIN-RELAXATION STUDY OF THE CRITICAL LONGITUDINAL SPIN DYNAMICSIN A DIPOLAR HEISENBERG-FERROMAGNET, Physical review. B, Condensed matter, 53(1), 1996, pp. 350-353
Citations number
27
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
1
Year of publication
1996
Pages
350 - 353
Database
ISI
SICI code
0163-1829(1996)53:1<350:MSOTCL>2.0.ZU;2-7
Abstract
We present zero-field muon-spin-relaxation data on the ferromagnetic f luctuations near the Curie temperature of the intermetallic GdNi5, whi ch is a Heisenberg magnet with strong dipolar interaction. Our data sh ow that the critical longitudinal (along the wave vector q) spin fluct uations above and below the Curie temperature are similar. They are an experimental proof of this similarity. This result is explained using the dynamical scaling theory of Halperin and Hohenberg.