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Spontaneous Magnetization and Electron Momentum Density in 3D Quantum Dots

R. Saniz·B. Barbiellini·A. B. Denison·A. Bansil
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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 novel route for direct experimental observation of the dot magnetization via spectroscopies sensitive to the electron momentum density.

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R. Saniz, B. Barbiellini, A. B. Denison, A. Bansil. 2003-05-09. Spontaneous Magnetization and Electron Momentum Density in 3D Quantum Dots. https://doi.org/10.1103/physrevb.68.165326

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