Interference Transport in a Two-Dimensional Topological Insulator in a CdHgTe Quantum Well

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Дәйексөз келтіру

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Аннотация

Interference transport in mesoscopic samples of a two-dimensional topological insulator in CdHgTe quantum wells is studied for the first time. It is established that quasi-ballistic edge transport in such an insulator exists at lengths up to 10 µm. In this transport regime, almost periodic Aharonov–Bohm oscillations caused by the formation of closed loops with a characteristic size of about 200 nm by edge states are found. The phase coherence length in the two-dimensional topological insulator is determined for the first time from the measured temperature dependence of their amplitude.

Авторлар туралы

M. Ryzhkov

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University

Email: dimko@isp.nsc.ru
630090, Novosibirsk, Russia; 630090, Novosibirsk, Russia

D. Kozlov

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences; Experimental and Applied Physics, University of Regensburg

Email: dimko@isp.nsc.ru
630090, Novosibirsk, Russia; D-93040, Regensburg, Germany

D. Khudayberdiev

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences

Email: dimko@isp.nsc.ru
630090, Novosibirsk, Russia

Z. Kvon

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University

Email: dimko@isp.nsc.ru
630090, Novosibirsk, Russia; 630090, Novosibirsk, Russia

N. Mikhaylov

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: dimko@isp.nsc.ru
630090, Novosibirsk, Russia

Әдебиет тізімі

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