Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-01-19
Physical Review B Vol.79, No.19, 195305 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 4 figures, final version
Scientific paper
10.1103/PhysRevB.79.195305
Spin-orbit effects on electron-electron interaction are studied theoretically. The corrections to the Coulomb interaction of quantum well electrons induced by the spin-orbit coupling are derived. The developed theory is applied to calculate the energy spectrum fine structure of an electron pair triplet states localized in small lateral disk-shaped quantum dots. We show that the spin degeneracy of a triplet state is completely lifted in anisotropic quantum dots. Isotropic quantum dots also demonstrate peculiar fine structure of triplet states caused by the spin-orbit interaction.
Glazov M. M.
Kulakovskii Vladimir D.
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