Anomalies in the Relaxation of Small Magnetic Particles at Very Low Temperatures

D. Zins; E. Vincent; F. Chaput; J. Hammann; J.P. Boilot; R. Sappey

arxiv: cond-mat/9609025 · v1 · submitted 1996-09-03 · ❄️ cond-mat

Anomalies in the Relaxation of Small Magnetic Particles at Very Low Temperatures

R. Sappey , E. Vincent , J. Hammann , F. Chaput , J.P. Boilot , D. Zins This is my paper

classification ❄️ cond-mat

keywords relaxationparticlessmallanomaliesaroundbeendiscusseddispersed

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The magnetization relaxation rate of small gamma-Fe2O3 particles dispersed in a silica matrix has been measured from 60 mK to 5 K. It shows a minimum around 150 mK, that can be discussed in terms of either thermal or quantum relaxation regime.

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Anomalies in the Relaxation of Small Magnetic Particles at Very Low Temperatures

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