Dynamics of itinerant ferromagnets above Tc

G. Shirane, P. Böni, J. Wicksted

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The existence of propagating spin waves above Tc in Ni and Fe has been widely accepted since this picture was first advocated in 1973. In this brief review of our current neutron scattering experiments on Fe and Ni we will present convincing evidence showing that this picture is incorrect. In addition, we will demonstrate that over wide ranges of ω, q and temperature, both Fe and Ni follow a simple paramagnetic scattering function of the spin diffusion type.

Original languageEnglish
Pages (from-to)264-270
Number of pages7
JournalPhysica B+C
Volume127
Issue number1-3
DOIs
StatePublished - Dec 1984
Externally publishedYes

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