Quantum Hall effect in p-Ge/Ge₁₋xSix heterostructures with low hole mobility
The apparent insulator—quantum Hall—insulator (I—QH—I) transition for filling factor 1 has been investigated in p-type Ge/Ge₁₋xSix heterostructures with εFτ/h ≈ 1. Scaling analysis is carried out for both the low- and high-field transition point. In low magnetic fields ωcτ < 1 pronounced QH...
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| Дата: | 2007 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2007
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/127532 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Quantum Hall effect in p-Ge/Ge₁₋xSix heterostructures with low hole mobility / Yu.G Arapov, G.I. Harus, I.V. Karskanov, V.N. Neverov, N.G.Shelushinina, M.V. Yakunin // Физика низких температур. — 2007. — Т. 33, № 2-3. — С. 207-210. — Бібліогр.: 22 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The apparent insulator—quantum Hall—insulator (I—QH—I) transition for filling factor 1
has been investigated in p-type Ge/Ge₁₋xSix heterostructures with εFτ/h ≈ 1. Scaling analysis is
carried out for both the low- and high-field transition point. In low magnetic fields ωcτ < 1 pronounced
QH-like peculiarities for ν = 1 are also observed in both the longitudinal and Hall
resistivities. Such behavior may be evidence of a localization effect in the mixing region of Landau
levels and is inherent for two-dimensional structures in a vicinity of the metal—insulator transition. |
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