Magnetic phase diagram of Pb1−−Sn Mn Te semimagnetic semiconductors
1997; Elsevier BV; Volume: 169; Issue: 1-2 Linguagem: Inglês
10.1016/s0304-8853(96)00720-2
ISSN1873-4766
AutoresP. Łazarczyk, T. Story, Μ. Arciszewska, R.R. GaŁęzka,
Tópico(s)Surface and Thin Film Phenomena
ResumoMagnetic susceptibility and Hall effect in Pb1−x−ySnyMnx semimagnetic semiconductor with 0.03 ⩽ x ⩽ 0.12 were investigated as a function of carrier concentration. At low temperatures a ferromagnetic phase was observed in the samples with a high carrier concentration. The dependence of the Curie temperature Tc on the carrier concentration p has a threshold-like character for all investigated samples. The threshold hole concentration depends on the Mn content and decreases with increasing concentration of manganese ions. The results are summarized in the form of Tc(x,p) magnetic phase diagram.
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