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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| Дата: | 2005 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.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| id |
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irk-123456789-1216772017-06-16T03:02:41Z Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor Gvozdikov, V.M. Письма pедактоpу 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). 2005 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/121677 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Письма pедактоpу Письма pедактоpу |
| spellingShingle |
Письма pедактоpу Письма pедактоpу Gvozdikov, V.M. Shubnikov—de Haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum Hall conductor 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). |
| format |
Article |
| author |
Gvozdikov, V.M. |
| author_facet |
Gvozdikov, V.M. |
| author_sort |
Gvozdikov, V.M. |
| title |
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_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_sort |
shubnikov—de haas oscillations, peaks and different temperature regimes of the diagonal conductivity in the integer quantum hall conductor |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2005 |
| topic_facet |
Письма pедактоpу |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121677 |
| 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. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT gvozdikovvm shubnikovdehaasoscillationspeaksanddifferenttemperatureregimesofthediagonalconductivityintheintegerquantumhallconductor |
| first_indexed |
2023-10-18T20:40:02Z |
| last_indexed |
2023-10-18T20:40:02Z |
| _version_ |
1796150797647478784 |