A two-dimensional axisymmetric model of the prebreakdown processes that occur in a
cathode microprotrusion exposed to an external dc electric field has been developed. The …

Since the first field emission model or the well-known Fowler–Nordheim (FN) law was
formulated about a century ago (in 1928), it remains an active topic to discover different …

Highly energetic ions traversing a two-dimensional material such as graphene produce
strong electronic excitations. Electrons excited to energy states above the work function can …

Multi-scale and multi-physics simulations are carried out for nano-emitters consisting of FCC
(Al, Cu and Au), BCC (V, Mo and W) and HCP (Ti, Zn and Zr) metals, using hybrid …

We performed multiscale-multiphysics simulations for W, Mo and Cu nanotips under high
electric field to investigate their structural evolution and thermal runaway process. The …

Nanoprotrusion (NP) on metal surface and its inevitable contamination layer under high
electric field is often considered as the primary precursor that leads to vacuum breakdown …

Field electron emission from nanometer-scale objects deviates from the predictions of the
classical emission theory as both the electrostatic potential curves within the tunneling …

The characteristics of field electron and ion emission change when the space charge formed
by the emitted charge is sufficient to suppress the extracting electric field. This phenomenon …

Field emission coupled with molecular dynamics simulation (FEcMD) software package is a
computational tool for studying the electron emission characteristics and the atomic structure …

Vacuum breakdown is a key factor limiting the performance of applications that utilize
vacuum for insulation. The surface electric field has been regarded in previous studies as …