Molecular dynamics simulations of field emission from a prolate spheroidal tip Article Swipe

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prolate spheroid current (fluid) electron coulomb prolate spheroidal coordinates physics field (mathematics) molecular dynamics method of image charges charge (physics) space charge atomic physics classical mechanics quantum mechanics thermodynamics pure mathematics mathematics

Kristinn Torfason , Á. Valfells , Andrei Manolescu ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.1063/1.4972821 · OA: W2513424732

High resolution molecular dynamics simulations with full Coulomb interactions of electrons are used to investigate field emission from a prolate spheroidal tip. The space charge limited current is several times lower than the current calculated with the Fowler-Nordheim formula. The image-charge is taken into account with a spherical approximation, which is good around the top of the tip, i.e., region where the current is generated.