Physics Commons^™

Spontaneous Magnetization And Electron Momentum Density In Three-Dimensional Quantum Dots, R. Saniz, B. Barbiellini, A. B. Denison, A. Bansil

Bernardo Barbiellini

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.