Hole density and composition dependence of ferromagnetic ordering in lead tin manganese telluride

H.J.M. Swagten, W.J.M. Jonge, de, R.R. Galazka, P. Warmenbol, J.T. Devreese

Research output: Contribution to journalArticleAcademicpeer-review

48 Citations (Scopus)
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Abstract

The influence of the concentration of charge carriers on the ferromagnetic phase transition of the semimagnetic semiconductor Pb1-x-ySnyMnxTe for various compositions is reported. A critical density of carriers above which a ferromagnetic transition can take place, is observed. A simple modified Ruderman-Kittel-Kasuya-Yosida mechanism for semiconductors is proposed in which carriers from two valence bands located in different regions of the Brillouin zone contribute and a finite mean free path is implemented. An excellent quantitative agreement with the data is obtained.
Original languageEnglish
Pages (from-to)9907-9910
Number of pages4
JournalPhysical Review B: Condensed Matter
Volume37
Issue number16
DOIs
Publication statusPublished - 1988

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