Current–current correlation function in the presence of chemical potential and magnetic field
- Авторы: Apresyan E.1
-
Учреждения:
- Alikhanyan National Scientific Laboratory
- Выпуск: Том 52, № 2 (2017)
- Страницы: 105-109
- Раздел: Article
- URL: https://journals.rcsi.science/1068-3372/article/view/228310
- DOI: https://doi.org/10.3103/S1068337217020037
- ID: 228310
Цитировать
Аннотация
A (2+1)-dimensional electronic system is considered, in which the relation between the Green functions and the conductivity is used. A current–current correlation function, Πμν(B), of the fermion system was obtained in the presence of nonquantized fermion magnetic field B, chemical potential η and gap m. Using this function one can obtain an expression for polarization operator calculated without the magnetic field. The result obtained can be applied for graphene.
Ключевые слова
Об авторах
E. Apresyan
Alikhanyan National Scientific Laboratory
Автор, ответственный за переписку.
Email: elena-apresyan@mail.ru
Армения, Yerevan