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

University proceedings. Volga region. Physical and mathematical sciences, 2008 Issue 3, Pages 91–104 (Mi ivpnz749)

This article is cited in 1 paper

Physics

The energy spectrum of the $D^-_2$ center in a semiconductor quantum dot in the presence of external electric and magnetic fields

V. D. Krevchika, A. V. Razumovb, В. А. Прошкинb

a Penza State University, Penza
b Penza State Pedagogical University named after V. G. Belinsky, Penza

Abstract: The evolution of the terms of an impurity molecular ion $D^-_2$ in a quantum dot with a parabolic confinement potential with a change in external electric and magnetic fields is investigated by the method of the zero-radius potential in the approximation of the effective mass. It is shown that an external magnetic field stabilizes the $D^-_2$ state, and an external electric field initiates the degeneration of the terms of the $D^-_2$ center at a quantum dot.

UDC: 539.23; 539.216.1



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