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- Article name
- Field emission from edge emitter with taking into account of edge curvature
- Authors
- Freinkman B. G., , freinkman@mtu-net.ru; freink@ipmt-hpm.ac.ru, Institute of Microelectronics Technology and High Purity Materials of RAS, 6 Institute str., Chernogolovka, Moscow region, 142432, Russia
Polyakov S. V., , polyakov@imamod.ru, Institute for Mathematical Modeling of RAS, 4/A Miusskaya sq., Moscow, 125047, Russia
- Keywords
- fieldemission / nanotube / tunneling / emitter
- Year
- 2010 Issue 3 Pages 61 - 68
- Code EDN
- Code DOI
- Abstract
- A simulation of auto-emission processes from a carbon nanotubes surface is considered. This problem is initiated by use of nanotubes as emitters of modern and future probing nano-devices. For nanometer sizes of nanotubes the correction of the law of auto-emission of Fauler-Nordheim is needed. In this work the basic attention is given influence of heterogeneity of a field on the form of a potential barrier. As a test problem the spending cylinder passing in a cone with spherical top, placed in a homogeneous external field is considered. The amendments to Fauler-Nordheim law, considering heterogeneity of an external field in tunneling area are received. Algorithms and programs of calculation of a current, an angular and power spectrum of emission on the set distribution of an external field near to the emitter are developed. Function of dispersion of the virtual source, depending on issue parameters of edge emitter is found.
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