Отправить статью по E-mail Reflectance spectra of p-Bi2Te3:Sn crystals in a wide IR region
- Авторы: Nemov S.1,2, Ulashkevich Y.3, Allahkhah A.1
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Учреждения:
- St Petersburg Polytechnic University
- St. Petersburg Electrotechnical University “LETI”
- Ioffe Institute
- Выпуск: Том 51, № 10 (2017)
- Страницы: 1295-1299
- Раздел: Spectroscopy, Interaction with Radiation
- URL: https://journals.rcsi.science/1063-7826/article/view/201318
- DOI: https://doi.org/10.1134/S1063782617100165
- ID: 201318
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Аннотация
The reflectance spectra of a p-Bi2Te3:Sn crystal are recorded in the range 50–7900 cm–1. The spectra possess features characteristic of charge-carrier plasma oscillations and a contribution of phonons. It is shown that the dielectric function that is used in the context of Drude–Lorentz theory and includes the contributions of hole plasma oscillations and two phonons adequately describes the experimental data obtained at room temperature and at a temperature of T = 78 K.
Об авторах
S. Nemov
St Petersburg Polytechnic University; St. Petersburg Electrotechnical University “LETI”
Автор, ответственный за переписку.
Email: nemov_s@mail.ru
Россия, St Petersburg, 195251; St. Petersburg, 197376
Yu. Ulashkevich
Ioffe Institute
Email: nemov_s@mail.ru
Россия, St. Petersburg, 194021
A. Allahkhah
St Petersburg Polytechnic University
Email: nemov_s@mail.ru
Россия, St Petersburg, 195251
