Molecular Dynamics Simulations of Field Emission From a Planar Nanodiode

Abstract

High resolution molecular dynamics simulations with full Coulomb interactions of electrons are used to investigate field emission in planar nanodiodes. The effects of space charge and emitter radius are examined and compared to previous results concerning transition from Fowler-Nordheim to Child-Langmuir current. The Fowler-Nordheim law is used to determine the current density injected into the system and the Metropolis-Hastings algorithm to find a favourable point of emission on the emitter surface. A simple fluid like model is also developed and its results are in qualitative agreement with the simulations.

arXiv comment7 pages, 10 figures

References in corpus (4)

• Space-charge modulation in vacuum microdiodes at THz frequencies
• Space Charge Effects in Field Emission: One Dimensional Theory
• Tunability of the THz space-charge modulation in a vacuum microdiode
• Synchronization in arrays of vacuum microdiodes

Cited by in corpus (12)

• Molecular Dynamics Simulations of Field Emission From a Prolate Spheroidal Tip
• Dynamic coupling between particle-in-cell and atomistic simulations
• Space-charge effects in the field-assisted thermionic emission from nonuniform cathodes
• Space-Charge Limited Current from a Finite Emitter in Nano- and Microdiodes
• Terahertz pulsed photogenerated current in microdiodes at room temperature
• Predicting space-charge affected field emission current from curved tips
• Molecular Dynamics Simulations of Mutual Space-Charge Effect between Planar Field Emitters
• Dynamics of a Field Emitted Beam from a Microscopic Inhomogeneous Cathode
• Simulation of short pulse photoemission in a micro-diode with implications for optimal beam brightness
• Transit-time oscillations in nanoscale vacuum diode with a pure resistive load
• Discrete Electron Emission
• Approximate universality in the electric field variation on a field-emitter tip in the presence of space charge