Gamow factors and current densities in cold field emission theory: A comparative study

The factors that contribute to the accuracy of the cold field emission current within the contemporary frameworks are investigated. It is found that so long as the net current is evaluated using an expression for the local current density obtained by linearizing the Gamow factor, the primary source...

Full description

Bibliographic Details
Main Author: Biswas, D. (Author)
Format: Article
Language:English
Published: American Institute of Physics Inc. 2022
Subjects:
Online Access:View Fulltext in Publisher
LEADER 01499nam a2200265Ia 4500
001 10.1063-5.0086586
008 220510s2022 CNT 000 0 und d
020 |a 00218979 (ISSN) 
245 1 0 |a Gamow factors and current densities in cold field emission theory: A comparative study 
260 0 |b American Institute of Physics Inc.  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1063/5.0086586 
520 3 |a The factors that contribute to the accuracy of the cold field emission current within the contemporary frameworks are investigated. It is found that so long as the net current is evaluated using an expression for the local current density obtained by linearizing the Gamow factor, the primary source of error is the choice of the energy at which the Taylor expansion is done, but not as much on the choice of the method used to arrive at the approximate Gamow factor. A suitable choice of linearization energy and the implementation of the Kemble correction allow the restriction of errors to below 3% across a wide range of local fields. © 2022 Author(s). 
650 0 4 |a Cold field emissions 
650 0 4 |a Comparatives studies 
650 0 4 |a Energy 
650 0 4 |a Field emission 
650 0 4 |a Field emission currents 
650 0 4 |a Linearisation 
650 0 4 |a Local current density 
650 0 4 |a Local fields 
650 0 4 |a Physical properties 
650 0 4 |a Primary sources 
650 0 4 |a Taylor's expansion 
700 1 |a Biswas, D.  |e author 
773 |t Journal of Applied Physics