Anomaly in the Temperature Dependence of the Coercive Force of an Ensemble of Ferromagnetic CrO2 Nanoparticles under Conditions of Percolation Conductivity
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The temperature dependence of coercive force Hc(T) of pressed powders of ferromagnetic half metal CrO2 is compared to the temperature dependence of the maximum field of positive tunneling magnetoresistance Hp(T). It is established that the multidomain alters the nature of the reverse magnetization of transport channels and violates relation Hp ≈ Hc at low temperatures (4.2–70 K).
Original language
English
Pages (from-to)
778-780
Journal
Bulletin of the Russian Academy of Sciences: Physics