PHOTON-STIMULATED ELECTRON TUNNELLING THROUGH A QUANTUM POINT CONTACT
O. A. Tkachenko1, D. G. Baksheev2,3, V. A. Tkachenko1,2,4, Z. D. Kwon1,2, A. S. Yaroshevich1, E. E. Rodyakina1,2, A. V. Latyshev1,2
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, prosp. Akad. Lavrent'eva 13, Novosibirsk, 630090
2Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090
3Yandex company, ul. L. Tolstogo 16, Moscow, 119021
4Novosibirsk State Technical University, prosp. K. Marksa 20, Novosibirsk, 630073
Keywords: одномерный барьер, динамический потенциал, нестационарное уравнение Шрёдингера, туннельный точечный контакт, двумерный электронный газ, one-dimensional barrier, dynamic potential, nonstationary Schrodinger equation, tunnel point contact, two-dimensional electron gas
Abstract
The theory of coherent photon-stimulated electron tunneling through a one-dimensional smooth barrier was successfully used to model the results of measuring the terahertz photoconductivity of a tunnel point contact in a two-dimensional electron gas. For this barrier in a deeper tunnel mode, photon steps in the dependence of the tunneling coefficient on the initial electron energy were found. Their position is determined by the energy of the terahertz photon
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