SLOWLY DECAYING QUASI-STATIONARY ELECTRON-STATES IN SPHERICAL HEAVY QUANTUM DOTS

The energy spectrum of an electron in a spherical potential-hump heter oinclusion with a large effective mass is shown to be characterized by a set of quasidiscrete levels with large values of the angular moment um l. The lifetimes of quasistationary states in the hump increase wit h increasing l, i.e., with increasing excitation of the state. Energie s and lifetimes of the quasistationary states are calculated numerical ly on the basis of selected parameter values. (C) 1994 American Instit ute of Physics.