p-d exchange interaction for 3d transition-metal impurities in II-VI semiconductors

Takashi Mizokawa, A. Fujimori

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We have investigated the exchange interaction between the localized d electrons of 3d transition-metal impurities and the delocalized host band electrons in II-VI semiconductors based on the configuration-interaction scheme. The exchange constant Nβ in the Kondo-type effective Hamiltonian is evaluated from Ti to Ni. For Mn, Fe, and Co, Nβ is negative (antiferromagnetic), and is in good agreement with experimental values. The exchange coupling of the Ti impurity is predicted to be positive (ferromagnetic) due to Hund's coupling. For V, Cr, and Ni, in which orbital degrees of freedom is important, the sign of Nβ depends on the Jahn-Teller distortion.

Original languageEnglish
Pages (from-to)6669-6672
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number11
Publication statusPublished - 1997 Sep 15
Externally publishedYes

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Exchange interactions
Transition metals
transition metals
Impurities
Jahn-Teller effect
Hamiltonians
impurities
Exchange coupling
Electrons
Beam plasma interactions
configuration interaction
electrons
degrees of freedom
interactions
orbitals
II-VI semiconductors

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

p-d exchange interaction for 3d transition-metal impurities in II-VI semiconductors. / Mizokawa, Takashi; Fujimori, A.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 56, No. 11, 15.09.1997, p. 6669-6672.

Research output: Contribution to journalArticle

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