Original title: Mapping the local density of states above vacuum level by very low energy electron reflectivity
Authors: Pokorná, Zuzana ; Frank, Luděk
Document type: Papers
Conference/Event: International Seminar on Recent Trends in Charged Particle Optics and Surface Physics Instrumentation /12./, Skalský dvůr (CZ), 2010-05-31 / 2010-06-04
Year: 2010
Language: eng
Abstract: The local density of states is an important characteristic of solids, crystalline matters in particular. What used to be a pure theoreticians’ toy is nowadays an experimentally accessible characteristic, e.g. by means of photoemission or scanning tunneling spectroscopy. Local density of states can reflect e.g. the local dopant concentration in semiconductors or discern between different crystal orientations, as each crystal face has a specific density of states. One way of probing the local density of states is to measure the reflectivity of very low energy electrons (units to tens of eV) from the sample surface. The reflectivity is principally inversely proportional to the local density of electronic states coupled to the impinging electron wave.
Keywords: local density of states; scanning tunneling spectroscopy
Project no.: CEZ:AV0Z20650511 (CEP)
Host item entry: Proceedings of the 12th International Seminar on Recent Trends in Charged Particle Optics and Surface Physics Instrumentation, ISBN 978-80-254-6842-5

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0190609

Permalink: http://www.nusl.cz/ntk/nusl-41929


The record appears in these collections:
Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers