Journal Article

PreJuSER-11683

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Probing the electronic transmission across a buried metal/metal interface

Moras, P. ; Wortmann, D.FZJ* ; Bihlmayer, G.FZJ* ; Ferrari, L. ; Alejandro, G. ; Zhou, P. H. ; Topwal, D. ; Sheverdyaeva, P. M. ; Blügel, S.FZJ* ; Carbone, C.

2010
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/10969  doi:10.1103/PhysRevB.82.155427

Abstract: We monitored the sp-quantum-well states of Ag films on Pt(111) by angle-resolved photoemission in order to examine the electron transmission across the Ag/Pt interface. For thin layers up to 3.5 nm, the Ag states are characterized by broad quasiparticle peaks and a reversal of the parabolic curvature near the center of the surface Brillouin zone. Remarkable departures from the expected nearly-free-electronlike band dispersion persist in films of more than 14 nm thickness. First-principles calculations and symmetry analysis demonstrate that the observed anomalies in the spectroscopic data can be straightforwardly linked to variations in the Ag/Pt transmission coefficient in the energy-momentum space.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IFF-1)
2. Quanten-Theorie der Materialien (IAS-1)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. Jülich Aachen Research Alliance - High-Performance Computing (JARA-HPC)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2010

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