TY  - JOUR
A1  - Horovitz, Baruch
A1  - Henkel, Carsten
T1  - Surface plasmons at composite surfaces with diffusive charges
T2  - epl : a letters journal exploring the frontiers of physics
N2  - Metal surfaces with disorder or with nanostructure modifications are studied, allowing for a localized charge layer (CL) in addition to continuous charges (CC) in the bulk, both charges having a compressional or diffusive nonlocal response. The notorious problem of "additional boundary conditions" is resolved with the help of a Boltzmann equation that involves the scattering between the two charge types. Depending on the strength of this scattering, the oscillating charges can be dominantly CC or CL; the surface plasmon (SP) resonance acquires then a relatively small linewidth, in agreement with a large set of data. With a few parameters our model describes a large variety of SP dispersions corresponding to observed data.
Y1  - 2012
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/36078
SN  - 0295-5075
VL  - 97
IS  - 5
PB  - EDP Sciences
CY  - Mulhouse
ER  -