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Start Over Author "Inoue, M." Journal journal of magnetism and magnetic materials
44 results on '"Inoue, M."'

31. Relaxation behaviors in cluster-glass phase of itinerant magnetic FexTiS2crystals studied by magnetotransport measurements using pulsed magnetic fields

Author

Hara, Y., Gao, W.X., Negishi, H., and Inoue, M.

Abstract

Time decays of Hall resistivities ϱHusing pulsed magnetic fields up to 20 T for a cluster-glass phase of FexTiS2(x= 14, Tg= 53 K) have been measured over the temperature ranges 4.2–45 K and time ranges 10-1–103s. The temperature and peak field dependences of ϱHare analyzed to obtain a universal relationship, mTα= Cφβ, for the parameters characterizing the dynamical properties, where mis an exponent for the power law ϱH(t) = At-mafter a field is switched off, α = - 12, and φ a newly introduced quantity, φ = [M(Hp) - Mr(0)]/M(Hp) [M( Hp) is the magnetization at the peak field Hpand Mr(0) the remanent magnetization at time t= 0]. The exponent β has different values 0.60 and 2.9 for φ < φcand φ > φc, respectively; φc= 0.34, which corresponds to a three-dimensional ‘critical volume fraction’ in a site-percolation picture.

Published
1994
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