ELECTRONIC-STRUCTURE OF SUPERLATTICES INCORPORATING DILUTED MAGNETIC SEMICONDUCTORS

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39377

Title:	ELECTRONIC-STRUCTURE OF SUPERLATTICES INCORPORATING DILUTED MAGNETIC SEMICONDUCTORS
Authors:	YOUNG,PM;EHRENREICH,H;HUI,PM;HASS,KC
Contributors:	物理研究所
Keywords:	EFFECTIVE MASSES;BAND LINEUPS;HETEROJUNCTIONS;EXCITONS;RULE
Date:	1991
Issue Date:	2010-07-08 14:13:56 (UTC+8)
Publisher:	中央大學
Abstract:	The electronic properties of superlattices (SL's) containing a diluted magnetic semiconductor (DMS) as one of the constituents are studied with use of the envelope-function formalism. The effects of Mn d electrons are explicitly included in an effective K.p Hamiltonian. It is shown that the application of the mean-field model to include spin polarization in the DMS layers before calculating SL states is equivalent to the present approach, provided that the energy difference between the valence-band edge and the Mn d bands is large compared with the energy range of the subbands of interest. The results are applied to two SL systems, the experimentally studied CdTe/Cd0.76Mn0.24Te SL and a lattice-matched Zn1-y(Cd)y(Se)/Zn1-x(Mn)x(Se) SL having an energy gap in the blue-green range of the spectrum. The value of the valence-band offset in the former SL is reanalyzed with inclusion of excitonic effects.
Relation:	PHYSICAL REVIEW B
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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