SELF-CONSISTENT DFT CALCULATIONS OF ELECTRONIC STATES IN SUPERLATTICES AND QUANTUM-WELLS WITH ARBITRARY COMPOSITIONAL AND DOPING PROFILES

被引:3
作者
FIORENTINI, V
机构
[1] Dipartimento di Fisica Teorica, Università di Trieste, Gruppo Nazionale di Struttura Della Materia-CNR, I-34014 Trieste
[2] Fraunhofer-Institut für Angewandte Festkörperphysik, D-7800 Freiburg
关键词
D O I
10.1088/0268-1242/5/3/005
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A method is described for the self-consistent computation of electronic states of semiconductor superlattices and MQWS with arbitrary compositional and doping profiles within effective mass theory and the envelope function approximation. Non-parabolicity of bulk bands is accounted for by means of the Hellmann-Feynman theorem. Many-body effects are included within local density functional theory; the exchange-correlation potentials obtained using the Tanatar-Ceperley and Ceperley-Alder correlation energies for the two-dimensional and three-dimensional electron gas, respectively, are compared.
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页码:211 / 217
页数:7
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