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Room-temperature ferromagnetism in Mn-doped semiconducting CdGeP2.

Authors
  • Mahadevan, Priya
  • Zunger, Alex
Type
Published Article
Journal
Physical review letters
Publication Date
Jan 28, 2002
Volume
88
Issue
4
Pages
47205–47205
Identifiers
PMID: 11801165
Source
Medline
License
Unknown

Abstract

The chalcopyrite CdGeP2 doped with Mn have been recently found to exhibit room-temperature ferromagnetism. Isovalent substitution of the Cd site is expected, however, to create antiferromagnetism, in analogy with the well-known CdTe:Mn (d5) case. However, chalcopyrite semiconductors exhibit low-energy intrinsic defects. We show theoretically how ferromagnetism results from the interaction of Mn with hole-producing intrinsic defects.

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