Magnetic Susceptibility of PbSnMnTe in the Transition Region between Ferromagnetic and Spin Glass Phase
T. Story, R.R. Gałązka
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

P.J.T. Eggenkamp, H.J.M. Swagten and W.J.M. de Jonge
Department of Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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The ac magnetic susceptibility (χ) was measured in the temperature range T = (1.5÷50) K for Pb1-x-ySnyMnxTe samples with a composition y = 0.72, x = 0.015÷0.04 and carrier concentrations in the range p = (2.85÷14) × 1020 cm-3. The breakdown of ferromagnetism and the formation of a spin glass phase are observed with an increasing carrier concentration. It is experimentally evidenced as continuous deviation of χ(T) from the characteristic critical behavior observed for ferromagnetic samples.
DOI: 10.12693/APhysPolA.82.630
PACS numbers: 75.50.Pp, 75.50.Lk