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On the origin of magnetic AC susceptibility non-SRT anomalies in intermetallic compounds

1994; IEEE Magnetics Society; Volume: 30; Issue: 2 Linguagem: Inglês

10.1109/20.312340

1941-0069

José F. Bartolomé, L.M. García, F. J. Lázaro, Y. Grincourt, Germán F. de la Fuente, C. de Francisco, J. M. Muñoz, D. Fruchart,

Magnetic and transport properties of perovskites and related materials

The anomaly detected in the magnetic AC susceptibility of many intermetallic compounds between 100 and 300 K, and in particular in Nd/sub 2/Fe/sub 14/B at 220 K, has been induced in a controlled manner by thermal annealing. The anomaly has been interpreted in terms of thermal activated processes of defects imposing their dynamical behavior on the domain walls coupled to them, thus solving the controversy on its origin. >