Magnetic properties of crystalline and amorphous DyAg from μSR measurements

G.M. Kalvius,L. Asch,D.R. Noakes,R. Keitel,J.H. Brewer,E.J. Ansaldo,F.J. Litterst,B. Boucher,J. Chappert,A. Yaouanc,T. Yamazaki,K. Nagamine, K. Nishiyama,O. Hartmann,R. Wäppling

Journal of Magnetism and Magnetic Materials（1987）

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摘要

Muon spin relaxation in crystalline and amorphous DyAg has been studied in the paramagnetic and magnetically ordered regimes. In cr-DyAg the critical slowing down of the Dy3+ spin fluctuation is seen on approaching TN = 60 K. In the ordered state we observe a Lorentzian field distribution. The muon spin relaxation in am-DyAg approaches at lower temperatures a root exponential law usually encountered in spin glasses.

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关键词

magnetic properties,spin glass

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