Influence of an External Electric Field on the Charge and Field Distributions in a Metal Tip
| Autor: | Leonid I. Trakhtenberg, V. S. Posvyanskii, B. V. Lidskii, Mortko Kozhushner, V. L. Bodneva |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Electron density
Materials science Condensed matter physics Field (physics) Fermi level General Physics and Astronomy Charge (physics) Electron 01 natural sciences law.invention symbols.namesake law Electric field 0103 physical sciences Surface roughness symbols Scanning tunneling microscope 010306 general physics |
| Zdroj: | Journal of Experimental and Theoretical Physics. 130:198-203 |
| ISSN: | 1090-6509 1063-7761 |
| DOI: | 10.1134/s1063776120010069 |
| Popis: | The electric field and charge distributions in a nanosized truncated metal cone in a strong electric field have been found. The geometry of the problem corresponds to surface roughness elements and a scanning tunneling microscope tip. The electron density along the cone axis is shown to change dramatically, by tens of percent. The field penetrates deep into the metal tip to distances of the order of a nanometer. The position of the Fermi level near the upper base of the cone changes noticeably. The barrier through which the electrons are tunneled upon entry into or exit from the tip is shown to be asymmetric and to depend on the sign of the external electric field. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |