Transport and Magnetic Properties of Pb1-x-ySnyMnxTe (x ≤ 0.16)
P. Łazarczyk, E. Grodzicka, M. Arciszewska, B. Witkowska, E. Dynowska, S. Miotkowska and T. Story
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
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Hall constant, conductivity and magnetic susceptibility of Pb1-x-ySnyMnxTe semimagnetic semiconductor were investigated as a func­tion of Mn content (x = 0.04, 0.09, 0.16, y = (0.7-0.8)) in the temperature range T = (4 - 300) K. A ferromagnetic phase transition takes place at T = 5 K for samples with x = 0.04, at T = 10 K for x = 0.09 and at T = 20 K for x = 0.16. For crystals with x ≥ 0.09 the strong temper­ature dependence of the Hall constant is observed for temperatures below 40 K. Magnetic field characteristics of the Hall effect is strongly non-linear at T = 4.2 K. No significant temperature or magnetic field dependence of con­ductivity is observed in the whole temperature range studied. The observed transport anomalies are due to the anomalous Hall effect.
DOI: 10.12693/APhysPolA.87.469
PACS numbers: 75.50.Pp, 75.50.Lk