Abstract

We develop a mean-field theory of carrier-induced ferromagnetism in diluted\nmagnetic semiconductors. Our approach represents an improvement over standard\nRKKY model allowing spatial inhomogeneity of the system, free-carrier spin\npolarization, finite temperature, and free-carrier exchange and correlation to\nbe accounted for self-consistently. As an example, we calculate the electronic\nstructure of a Mn$_x$Ga$_{1-x}$As/GaAs superlattice with alternating\nferromagnetic and paramagnetic layers and demonstrate the possibility of\nsemiconductor magnetoresistance systems with designed properties.\n

Keywords

SuperlatticeCondensed matter physicsFerromagnetismMagnetic semiconductorParamagnetismSemiconductorMagnetoresistanceMaterials scienceSpin polarizationMagnetic fieldRKKY interactionPhysicsElectronOptoelectronicsQuantum mechanics

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Publication Info

Year
1999
Type
article
Volume
59
Issue
15
Pages
9818-9821
Citations
259
Access
Closed

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Cite This

T. Jungwirth, W. A. Atkinson, B. H. Lee et al. (1999). Interlayer coupling in ferromagnetic semiconductor superlattices. Physical review. B, Condensed matter , 59 (15) , 9818-9821. https://doi.org/10.1103/physrevb.59.9818

Identifiers

DOI
10.1103/physrevb.59.9818
arXiv
cond-mat/9810100

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Data completeness: 84%