Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor
A theory for the Shubnikov—de Haas oscillations in the diagonal conductivity σxx of a 2D conductor is developed for the case when electron states within the broaden Landau levels are localized except the narrow stripe in the center. The standard Shubnikov—de Haas oscillations take place only in the...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2005 |
| Автор: | |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/121677 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Shubnikov—de Haas oscillations, peaks and different
 temperature regimes of the diagonal conductivity
 in the integer quantum Hall conductor / V.M. Gvozdikov // Физика низких температур. — 2005. — Т. 31, № 7. — С. 826-831. — Бібліогр.: 19 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862737935570305024 |
|---|---|
| author | Gvozdikov, V.M. |
| author_facet | Gvozdikov, V.M. |
| citation_txt | Shubnikov—de Haas oscillations, peaks and different
 temperature regimes of the diagonal conductivity
 in the integer quantum Hall conductor / V.M. Gvozdikov // Физика низких температур. — 2005. — Т. 31, № 7. — С. 826-831. — Бібліогр.: 19 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | A theory for the Shubnikov—de Haas oscillations in the diagonal conductivity σxx of a 2D conductor is developed for the case when electron states within the broaden Landau levels are localized except the narrow stripe in the center. The standard Shubnikov—de Haas oscillations take place only in the low-field region which at higher magnetic fields crosses over into peaks. In the limit Ωτ >> 1 peaks in the σxx became sharp and between them σxx → 0 (Ω is the cyclotron frequency, τ is the electron scattering time). The conductivity peaks display different temperature behavior with the decrease of temperature, T: a thermal activation regime, σxx exp(-Δ/T), which holds at higher temperatures, crosses over into the variable-range-hopping regime at lower temperatures with σxx 1/T exp(-√(Т₀/Т) (the prefactor 1/T is absent in the conductance).
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| first_indexed | 2025-12-07T20:01:48Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-121677 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T20:01:48Z |
| publishDate | 2005 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Gvozdikov, V.M. 2017-06-15T09:16:10Z 2017-06-15T09:16:10Z 2005 Shubnikov—de Haas oscillations, peaks and different
 temperature regimes of the diagonal conductivity
 in the integer quantum Hall conductor / V.M. Gvozdikov // Физика низких температур. — 2005. — Т. 31, № 7. — С. 826-831. — Бібліогр.: 19 назв. — англ. 0132-6414 PACS: 73.43.–f, 73.40.Gk, 75.47.–m https://nasplib.isofts.kiev.ua/handle/123456789/121677 A theory for the Shubnikov—de Haas oscillations in the diagonal conductivity σxx of a 2D conductor is developed for the case when electron states within the broaden Landau levels are localized except the narrow stripe in the center. The standard Shubnikov—de Haas oscillations take place only in the low-field region which at higher magnetic fields crosses over into peaks. In the limit Ωτ >> 1 peaks in the σxx became sharp and between them σxx → 0 (Ω is the cyclotron frequency, τ is the electron scattering time). The conductivity peaks display different temperature behavior with the decrease of temperature, T: a thermal activation regime, σxx exp(-Δ/T), which holds at higher temperatures, crosses over into the variable-range-hopping regime at lower temperatures with σxx 1/T exp(-√(Т₀/Т) (the prefactor 1/T is absent in the conductance). The work was supported by INTAS, project
 INTAS-01-0791. The author is deeply gratitude to P.
 Fulde, J. Wosnitza, M. Kartsovnik, W. Biberacher,
 I.Ya. Polishchuk, I.V. Krive, A.M. Kosevich, A.A.
 Slutskin and participants of the theoretical seminar at
 FTINT in Kharkov for discussions and to S. Flach for
 the hospitality at MPIPKS in Dresden. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Письма pедактоpу Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor Article published earlier |
| spellingShingle | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor Gvozdikov, V.M. Письма pедактоpу |
| title | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor |
| title_full | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor |
| title_fullStr | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor |
| title_full_unstemmed | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor |
| title_short | Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor |
| title_sort | shubnikov—de haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum hall conductor |
| topic | Письма pедактоpу |
| topic_facet | Письма pедактоpу |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/121677 |
| work_keys_str_mv | AT gvozdikovvm shubnikovdehaasoscillationspeaksanddifferenttemperatureregimesofthediagonalconductivityintheintegerquantumhallconductor |