Electron emission and transport through and over potential barriers is an essential process
requiring modeling and simulation to meet the design needs and characterization of an …

The status of first principles modeling and simulation tools for vacuum electronics (VEs) is
presented. These tools, when combined with parametric beam-wave interaction tools …

An electron wave packet tunneling through a barrier has a transmission (or “group delay”)
time τ g that, for a rectangular barrier, is commonly held to become independent of the …

The article studies the mechanism of overheating and destruction of a carbon nanotube that
emits current. It has been experimentally shown that degradation occurs as a result of the …

Electron emission into a nanogap is not instantaneous, which presents a difficulty in
simulating ultra-fast behavior using particle models. A method of approximating the …

Evaluations of electron current output from tungsten emitter arrays with Cs and CsI coatings
are carried out. The approach is based on first-principles calculations of the material physics …

A recent algorithm developed by Tripathi et al.[J. Appl. Phys. 128, 025017 (2020); Erratum, J.
Appl. Phys. 131, 169901 (2022)] is modified to study the effects of thermal contact resistance …

This work is devoted to the investigation of the nonstationary problem of the thermal
conductivity of a nanoemitter on the surface of a massive copper cathode when a field …

Simulations for the thermal conductivity of carbon fibers (CFs) are carried out based on a
molecular dynamics (MD) approach. Our calculations are geared toward providing a general …

Quasi-one-dimensional (Q1D) nanowire field emitter arrays (FEAs) have important
applications in vacuum microelectronics. Investigation on its pulsed field emission …