Activation transport under quantum Hall regime in HgTe-based heterostructure

Activation transport under quantum Hall regime in HgTe-based heterostructure

Gudina, S.V. ; Neverov, V.N. ; Novik, E.G. ; Ilchenko, E.V. ; Harus, G.I. ; Shelushinina, N.G. ; Podgornykh, S.M. ; Yakunin, M.V. ; Mikhailov, N.N. ; Dvoretsky, S.A.

Тема: XXI Уральская международная зимняя школа по физике полупроводников

Інший ID: PACS: 73.63.Hs, 73.43.Qt

URI: http://dspace.nbuv.gov.ua/handle/123456789/129428

Посилання: Activation transport under quantum Hall regime in HgTe-based heterostructure / S.V. Gudina, V.N. Neverov, E.G. Novik, E.V. Ilchenko, G.I. Harus, N.G. Shelushinina, S.M. Podgornykh, M.V. Yakunin , N.N. Mikhailov, S.A. Dvoretsky // Физика низких температур. — 2017. — Т. 43, № 4. — С. 605-611. — Бібліогр.: 34 назв. — англ.

Підтримка: The research was carried out within the state assignment of FASO of Russia (theme “Spin” No. 01201463330), supported in part by RFBR (project No. 17–02–00330). Samples were grown on the funds of the project “Fundamental Research of Ural Branch of Russian Academy of Sciences, No 15-9-2-21”.

Дата: 2017

Завантажень: 400

Activation transport under quantum Hall regime in HgTe-based heterostructure

Анотація:

We have measured the temperature (2.9 K < T < 50 K) and magnetic field (0 T < B < 9 T) dependences of longitudinal and Hall resistivities for HgCdTe/HgTe/HgCdTe system with HgTe quantum well width of 20.3 nm. The activation analysis of the experimental magnetoresistivity traces has been used as a quantitative tool to probe inter-Landau level distances. The activation energies were determined from the temperature dependence of the longitudinal resistivity in the regions of quantized Hall plateaus (for the filling factors ν of 1, 2 and 3) and the indications of the large values of the g factor ≅ 30–75 were found.

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