Abstract

We discuss an exactly solvable model Hamiltonian for describing the interacting electron gas in a quantum dot. Results for a spherical square-well confining potential are presented. The ground state is found to exhibit striking oscillations in spin polarization with dot radius at a fixed electron density. These oscillations are shown to induce characteristic signatures in the momentum density of the electron gas, providing a route for direct experimental observation of the dot magnetization via spectroscopies sensitive to the electron momentum density.

Notes

Originally published in Physical Review B v.68 (2003): 165326. DOI: 10.1103/PhysRevB.68.165326

Keywords

model Hamiltonian, electron momentum density

Subject Categories

Magnetization, Quantum dots

Disciplines

Physics

Publisher

American Physical Society

Publication Date

10-20-2003

Rights Information

Copyright 2003 American Physical Society

Rights Holder

American Physical Society

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