Energy spectrum of holes in highly alloyed PbTe
DOI:
https://doi.org/10.33910/2687-153X-2023-4-4-203-209Keywords:
PbTe, energy spectrum of holes, TI and Na impurities, Fermi level stabilization, modification of the band spectrumAbstract
The electrophysical properties of a series of PbTe samples doped with Tl and an additional admixture of Na are investigated. Observed features of temperature dependences of electrical conductivity and Hall’s coefficient are explained within the framework of the model of resonant states of thallium, taking into account the complex structure of the valence band. It is shown that the idea of an ideal crystal and a band structure in the framework of the one-electron approximation is insufficient to explain the experimental data on the Hall effect. It is necessary to take into account the modification of the energy spectrum taking into account the statistical distribution of impurities and defects and the additional interaction of particles.
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