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Semiconductor structures, low-dimensional systems, quantum phenomena
On the role of structural imperfections of graphene in resonant tunneling through localized states in the $h$-BN barrier of van-der-Waals heterostructures
M. V. Grigor'eva, D. A. Ghazaryanbc, E. E. Vdovina, Yu. N. Khanina, S. V. Morozova, K. S. Novoselovbd a Institute of Microelectronics Technology and High-Purity Materials RAS
b School of Physics and Astronomy, The University of Manchester, Manchester, United Kingdom
c Department of Physics, National Research University Higher School of Economics, Moscow, Russia
d Department of Material Science and Engineering, National University of Singapore, Singapore, Republic of Singapore
Abstract:
Resonant tunneling through defect levels in the $h$-BN barrier of van-der-Waals heterostructures is investigated. The effect of multiplication of the tunneling resonances through these levels due to the effect of a high degree of imperfection of the structure of the neighboring graphene layer formed intentionally by its processing in plasma is found. Various mechanisms of such an effect are discussed.
Keywords:
graphene, van-der-Waals heterostructures, crystal-lattice defects, boron nitride, tunneling transistor, resonant tunneling.
Received: 26.08.2019 Revised: 06.11.2019 Accepted: 07.11.2019
Citation:
M. V. Grigor'ev, D. A. Ghazaryan, E. E. Vdovin, Yu. N. Khanin, S. V. Morozov, K. S. Novoselov, “On the role of structural imperfections of graphene in resonant tunneling through localized states in the $h$-BN barrier of van-der-Waals heterostructures”, Fizika i Tekhnika Poluprovodnikov, 54:3 (2020), 238–243; Semiconductors, 54:3 (2020), 291–296
Linking options:
https://www.mathnet.ru/eng/phts5259 https://www.mathnet.ru/eng/phts/v54/i3/p238
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