Observation of quantum interference effect in solids

1405 12 5648 2 15685 document 5648 Observation of quantum interference effect in solids.pdf application/pdf f005f69d7f3ad412fe02da1e5a81cf53 MD5 195290 2014-05-03 07:46:47 http://eprints.iliauni.edu.ge/1405/1/Observation%20of%20quantum%20interference%20effect%20in%20solids.pdf 1405 1 1 application/pdf text en validuser

Observation of quantum interference effect in solids.pdf

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http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/8237 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/8237 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/8237 archive 15 disk0/00/00/14/05 2014-05-05 12:53:01 2015-04-02 08:21:03 2014-05-05 12:53:01 article show avtandil.tavkhelidze@iliauni.edu.ge Tavkhelidze A. avtandil.tavkhelidze@iliauni.edu.ge Bibilashvili A. Jangidze L. Shimkunas A. Maugher P. Rampfer G. F. Almaraz L. Kordesch M. E. Katan N. Wlitzki H. Observation of quantum interference effect in solids pub QC fac_eng restricted In order to achieve quantum interference of free electrons inside a solid, we have modified the geometry of the solid so that de Broglie waves interfere destructively inside the solid. Quantum interference of de Broglie waves leads to a reduction in the density of possible quantum states of electrons inside the solid and increases the Fermi energy level. This effect was studied theoretically within the limit of the quantum theory of free electrons inside the metal. It has been shown that if a metal surface is modified with patterned indents, the Fermi energy level will increase and consequently the electronwork function will decrease. This effect was studied experimentally in both Au and SiO2 thin films of special geometry and structure. Work function reductions of 0.5eV in Aufilms and 0.2eV in SiO2 films were observed. Comparative measurements of work function were made using the Kelvin probe method based on compensation of internal contact potential difference. Electron emission from the same thin films was studied by two independent research groups using photoelectron emission microscopy. 2006 published J. Vac. Sci. Technol. B 24 American Vacuum Society 1413 TRUE http://dx.doi.org/10.1116/1.2198856