Title :
Effect of the energy bands nonparabolicity on the electrical conductivity in PbTe/Pb1-xEuxTe quantum wells
Author :
Balandin, A. ; Casian, A. ; Sur, I.
Author_Institution :
Electr. Eng. Dept., California Univ., Riverside, CA, USA
Abstract :
The dimensional quantization levels, Fermi levels, electrons dispersion law, and electrical conductivity in PbTe/Pb1-xEu xTe quantum well structures are investigated taking into account the energy bands nonparabolicity of initial materials. The ratio of the effects of nonparabolicity and of the carrier penetration into barriers on the increase of effective masses is determined. A comparison with the respective quantities of parabolic model is also presented
Keywords :
Fermi level; IV-VI semiconductors; effective mass; electrical conductivity; europium compounds; lead compounds; semiconductor quantum wells; Fermi level; PbTe-PbEuTe; PbTe/Pb1-xEuxTe quantum well; carrier penetration; dimensional quantization level; effective mass; electrical conductivity; electron dispersion law; energy band nonparabolicity; Anisotropic magnetoresistance; Conductivity; Effective mass; Electrons; Function approximation; Optical materials; Quantization; Quantum computing; Tellurium; Thermoelectricity;
Conference_Titel :
Semiconductor Conference, 2001. CAS 2001 Proceedings. International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-6666-2
DOI :
10.1109/SMICND.2001.967420
