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Spin–Orbit Energy State Splitting in Semiconductor Cylindrical and Spherical Quantum Dots
Author(s) -
Voskoboynikov O.,
Lee C.P.,
Tretyak O.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200107)226:1<175::aid-pssb175>3.0.co;2-i
Subject(s) - quantum dot , hamiltonian (control theory) , physics , condensed matter physics , spin–orbit interaction , spin (aerodynamics) , bound state , energy spectrum , semiconductor , electron , quantum mechanics , mathematical optimization , mathematics , thermodynamics
We present a theoretical study of the spin–orbit interaction impact on electron energy states in small cylindrical and spherical quantum dots. The investigation is based on the effective one‐electronic band Hamiltonian and the spin dependent boundary conditions. It has been demonstrated that the spin–orbit interaction can significantly modify the energy spectrum of InAs and InSb quantum dots. The splitting can provide a situation where only the lowest spin split energy states are bound in the dot. A reasonable agreement was found with data from more sophisticated theoretical models for the spherical quantum dots which is available in the literature.