Транспортные Свойства Гетероэпитаксиальных Пленок На Основе Теллурида Висмута В Сильных Магнитных Полях

Лукьянова, Л.Н.; Бойков, Ю.А.; Усов, О.А.; Danilov, V. A.; Волков, М. П.

doi:10.21883/ftp.2017.07.44632.18

Физика И Техника Полупроводников

2017

DOI: 10.21883/ftp.2017.07.44632.18

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Транспортные Свойства Гетероэпитаксиальных Пленок На Основе Теллурида Висмута В Сильных Магнитных Полях

Л.Н. Лукьянова¹,

Ю.А. Бойков²,

О.А. Усов³

et al.

Abstract: Проведены исследования температурных и магнитополевых зависимостей гальваномагнитных свойств гетероэпитаксиальных пленок n-Bi2Te3 в магнитных полях до 14 Тл при низких температурах. Показано, что ступени на магнитополевых зависимостях квантового эффекта Холла и плато на температурных зависимостях магнетосопротивления в пленках обусловлены топологическими поверхностными состояниями фермионов Дирака. DOI: 10.21883/FTP.2017.07.44632.18

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Electron–plasmon interaction in Bi2Te3–Sb2Te3

Stepanov

2024

Poverhnostʹ. Rentgenovskie, sinhrotronnye i nejtronnye issledov

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During the study of the optical properties of solid solutions of Bi2Te3–Sb2Te3 p-type conductivity in the infrared range, it was found that in a single crystal Bi0.6Sb1.4Te3, deformation of the reflection coefficient spectra is observed in the frequency range of observation of the plasma resonance of free charge carriers. The deformation of the plasma edge increases with a decrease in temperature. Using the Kramers–Kronig dispersion relations from experimental reflection spectra, the spectral dependences of the real ε1 and imaginary parts ε2 of the permittivity function, as well as the energy loss function characterizing the rate of energy dissipation, are calculated. Splitting of the peak of the energy loss function was found, indicating the effect on the plasma resonance from another process occurring in the electronic system. It is established that such a process is the transition of electrons between nonequivalent extremes of the valence band. Convergence of collective and single-particle energies.

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Electron–plasmon interaction in Bi2Te3–Sb2Te3

Stepanov

2024

Poverhnostʹ. Rentgenovskie, sinhrotronnye i nejtronnye issledov

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show abstract

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Транспортные Свойства Гетероэпитаксиальных Пленок На Основе Теллурида Висмута В Сильных Магнитных Полях

Cited by 1 publication

References 11 publications

Electron–plasmon interaction in Bi<sub>2</sub>Te<sub>3</sub>–Sb<sub>2</sub>Te<sub>3</sub>

Electron–plasmon interaction in Bi<sub>2</sub>Te<sub>3</sub>–Sb<sub>2</sub>Te<sub>3</sub>

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