Application of the transferred matrix method to a unified evaluation of the cathodic electron emission
dc.bibliographicCitation.firstPage | 085322 | eng |
dc.bibliographicCitation.issue | 8 | eng |
dc.bibliographicCitation.journalTitle | AIP Advances | eng |
dc.bibliographicCitation.volume | 8 | eng |
dc.contributor.author | Baeva, M. | |
dc.date.accessioned | 2023-01-06T09:56:56Z | |
dc.date.available | 2023-01-06T09:56:56Z | |
dc.date.issued | 2018 | |
dc.description.abstract | The work is concerned with the Transfer Matrix Method for solving the steady-state Schrödinger equation applied for a unified evaluation of the emission current density from non-refractory cathodes. The method is applicable to arbitrary shapes of the potential barrier and its transmission probability is obtained without any analytical approximations. The Fermi-Dirac distribution for the free electrons in the metal is considered as a supply function. The results, obtained for a work function of the cathode material of 4.5 eV over a wide range of values of the surface temperature and the electric field strength, clearly show a growing deviation from those obtained by the classical Jeffreys-Wentzel-Kramers-Brillouin approximation with the increase of the electric field strength. Preliminary results are obtained to demonstrate the applicability of the Transfer Matrix method to the evaluation of the ion-assisted electron emission. A significant local enhancement of the emission current density is obtained as a result of the presence of an ion at a fixed position near the metal surface. The effect becomes very strongly pronounced at an appropriate value of the electric field strength, for which a resonant ion contribution appears. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/10799 | |
dc.identifier.uri | http://dx.doi.org/10.34657/9825 | |
dc.language.iso | eng | eng |
dc.publisher | New York, NY : American Inst. of Physics | eng |
dc.relation.doi | https://doi.org/10.1063/1.5041314 | |
dc.relation.essn | 2158-3226 | |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject.ddc | 530 | eng |
dc.subject.other | Analytical approximation | eng |
dc.subject.other | Electric field strength | eng |
dc.subject.other | Emission current density | eng |
dc.subject.other | Fermi-Dirac distribution | eng |
dc.subject.other | Potential barriers | eng |
dc.subject.other | Refractory cathodes | eng |
dc.subject.other | Surface temperatures | eng |
dc.subject.other | Transmission probabilities | eng |
dc.title | Application of the transferred matrix method to a unified evaluation of the cathodic electron emission | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | INP | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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