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

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

48 Citaten (Scopus)
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Samenvatting

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.
Originele taal-2Engels
Pagina's (van-tot)9907-9910
Aantal pagina's4
TijdschriftPhysical Review B: Condensed Matter
Volume37
Nummer van het tijdschrift16
DOI's
StatusGepubliceerd - 1988

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