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JOURNALS // University proceedings. Volga region. Physical and mathematical sciences // Archive

University proceedings. Volga region. Physical and mathematical sciences, 2012 Issue 4, Pages 135–149 (Mi ivpnz459)

Physics

Features of dissipative tunneling in a quantum molecule taking into account two phonon modes of the dielectric matrix

V. D. Krevchika, M. B. Semenova, R. V. Zaitseva, A. K. Aryngazinb, K. Yamamotoc, V. A. Rudina, P. V. Krevchika, I. A. Egorova

a Penza State University, Penza
b Eurasian National University named after L. N. Gumilyov, Astana, Kazakhstan
c Research Institute of International Clinical Center, Tokyo, Japan

Abstract: Thearticle considers a 1 D -dissipative tunneling model for structures with quantum dots in a system of joint AFM/STM in external electric field. It has been found, that the influence of two local modes of a heat-bath on the 1d - dissipative tunnel probability leads to appearance of some non - equidistant peaks in corresponding dependence on the electric field intensity. The obtained theoretical dependence qualitatively corresponds to experimental VAC for the AFM cantilever contact to the surface of a quantum dot from InAs.

Keywords: dissipative tunneling, quantum dot, quantum molecule, phonon modes of a heat-bath.

UDC: 539.23; 539.216.1; 537.311.322



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