Article
Carrier-Concentration–Induced Ferromagnetism in PbSnMnTe
Physical Review Letters
Publication Date
2-17-1986
Abstract
The influence of charge-carrier concentration on the magnetic properties of the semimagnetic semiconductor [(PbTe)1-x(SnTe)x]1-y[MnTe] y (x=0.72, y=0.03) is reported. Magnetization, magnetic susceptibility, and specific heat have been measured. For carrier concentrations below p=3 x 1020 cm-3 the alloy is paramagnetic. For p≥3 x 1020 cm-3 an abrupt transition to a ferromagnetic phase is observed at helium temperatures. The ferromagnetic transition temperature increases with increasing p. This is the first demonstration of the effect of carrier concentration on the magnetic properties of semimagnetic semiconductors.
Disciplines
Copyright
1986 American Physical Society.
Publisher statement
This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review Letters.
Citation Information
T. Story, R. R. Galazka, Richard B. Frankel and P. A. Wolff. "Carrier-Concentration–Induced Ferromagnetism in PbSnMnTe" Physical Review Letters Vol. 56 Iss. 7 (1986) p. 777 - 779 Available at: http://works.bepress.com/rfrankel/54/