Influence of the Phase Transition in Pb1−xGexTe on the Electronic Dispersion Relation

The influence of the structural phase transition on the electronic structure of Pb1−xGexTe near the band gap is investigated theoretically. It is shown that the absolute minimum of the conduction band and the absolute maximum of the valence band are shifted in the (111) plane of the Brillouin zone....

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Veröffentlicht in:	Physica status solidi. B. Basic research 1984-01, Vol.121 (1), p.203-207
1. Verfasser:	Vassilev, L. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electron density of states and band structure of crystalline solids Electron states Exact sciences and technology Materials science Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics
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Zusammenfassung:	The influence of the structural phase transition on the electronic structure of Pb1−xGexTe near the band gap is investigated theoretically. It is shown that the absolute minimum of the conduction band and the absolute maximum of the valence band are shifted in the (111) plane of the Brillouin zone. The surfaces of constant energy develop from toroidal‐shaped ones near the band edge to a figure of revolution obtained from two intersecting ellipses for the usual carrier concentration of 1017 cm−3. [Russian Text Ignored]
ISSN:	0370-1972 1521-3951
DOI:	10.1002/pssb.2221210121