Diluted magnetic III-V semiconductors

Diluted magnetic III-V semiconductors

In#71#7d#xMn#xAs (#2x#1#8#;018) films grown at 300#+C by MBE are predominantly ferromagnetic, and their properties suggest the presence of MnAs clusters. Films grown at 200#+, however, are predominantly paramagnetic, and the lattice constant decreases with increasing Mn composition. Both are indicat...

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Veröffentlicht in:Physical review letters 1989-10, Vol.63 (17), p.1849-1852
Hauptverfasser: Munekata, H, Ohno, H, von Molnar S, Segmüller, A, Chang, LL, Esaki, L
Format: Artikel
Sprache:eng
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Zusammenfassung:In#71#7d#xMn#xAs (#2x#1#8#;018) films grown at 300#+C by MBE are predominantly ferromagnetic, and their properties suggest the presence of MnAs clusters. Films grown at 200#+, however, are predominantly paramagnetic, and the lattice constant decreases with increasing Mn composition. Both are indicative of the formation of a homogeneous alloy. These films have n#1-type conductivity and reduced band gaps.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.63.1849