Long-range electron interferences at a metal surface induced by buried nanocavities

O. Kurnosikov, J.H. Nietsch, M.V. Sicot, H.J.M. Swagten, B. Koopmans

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Apparent c(2×2) superstructures within the narrow beams of an interference pattern spreading in the 100 directions at the surface of Cu(001) are observed by scanning tunneling microscopy. These features are induced by electron scattering from Ar- and Ne-filled subsurface nanocavities. The beams originate from electron anisotropy resulting in focusing of bulk electrons. We developed a model providing a good agreement between simulations and experiments. Particularly, a simple explanation of the angular distribution for the interference pattern and the period in the superstructure is found. © 2009 The American Physical Society.
Originele taal-2Engels
Artikelnummer066101
Pagina's (van-tot)066101-1/4
TijdschriftPhysical Review Letters
Volume102
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 2009

Vingerafdruk

metal surfaces
interference
scanning tunneling microscopy
electron scattering
electrons
angular distribution
anisotropy
simulation

Citeer dit

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Long-range electron interferences at a metal surface induced by buried nanocavities. / Kurnosikov, O.; Nietsch, J.H.; Sicot, M.V.; Swagten, H.J.M.; Koopmans, B.

In: Physical Review Letters, Vol. 102, Nr. 6, 066101, 2009, blz. 066101-1/4.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Long-range electron interferences at a metal surface induced by buried nanocavities

AU - Kurnosikov, O.

AU - Nietsch, J.H.

AU - Sicot, M.V.

AU - Swagten, H.J.M.

AU - Koopmans, B.

PY - 2009

Y1 - 2009

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AB - Apparent c(2×2) superstructures within the narrow beams of an interference pattern spreading in the 100 directions at the surface of Cu(001) are observed by scanning tunneling microscopy. These features are induced by electron scattering from Ar- and Ne-filled subsurface nanocavities. The beams originate from electron anisotropy resulting in focusing of bulk electrons. We developed a model providing a good agreement between simulations and experiments. Particularly, a simple explanation of the angular distribution for the interference pattern and the period in the superstructure is found. © 2009 The American Physical Society.

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DO - 10.1103/PhysRevLett.102.066101

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