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.
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
Recommended Citation
Saniz, R.; Barbiellini, B.; Denison, A. B.; and Bansil, A., "Spontaneous magnetization and electron momentum density in three-dimensional quantum dots" (2003). Physics Faculty Publications. Paper 431.
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Notes
Originally published in Physical Review B v.68 (2003): 165326. DOI: 10.1103/PhysRevB.68.165326