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Dielectric Properties of Bi~1− x ~Sb~ x ~ Alloys at the Semiconductor‐Semimetal Transition by R. Rudolph; H. Krüger; B. Fellmuth; R. Herrmann is a Physics and Astronomy article available to read on EtoBox.

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## Abstract The composition dependence of the lattice dielectric constant of semiconducting Bi~1−__x__~Sb~__x__~ alloys is investigated by means of helicon wave propagation for B∥C~1~ in high magnetic fields in the neighbourhood of the semiconductor‐semimetal transition. In contrast to the smooth variation of the parameters of the isoenergy surface of the electrons, in the neighbourhood of the transition first a rapid increase of the dielectric constant is observed, followed by a discontinuous drop when the band overlap begins. The comparison with theoretical calculations allows the conclusion that the lattice dielectric constant must be correlated with the indirect band gap of the alloy – the parameter of the semiconductor‐semimetal transition.

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Author

R. Rudolph; H. Krüger; B. Fellmuth; R. Herrmann

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0370-1972)

Published

1980

Language

EN

Field

Physics and Astronomy (Physical Sciences)