Oxygen vibrations and acoustic surface plasmon on Be(0001)

2012 ◽  
Vol 86 (8) ◽  
Author(s):  
M. Jahn ◽  
M. Müller ◽  
M. Endlich ◽  
N. Néel ◽  
J. Kröger ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Acoustic Surface Plasmon

scholarly journals Band structure effects on the Be(0001) acoustic surface plasmon energy dispersion

2008 ◽  
Vol 205 (6) ◽  
pp. 1307-1311 ◽  
Author(s):  
V. M. Silkin ◽  
J. M. Pitarke ◽  
E. V. Chulkov ◽  
B. Diaconescu ◽  
K. Pohl ◽  
...  
Keyword(s):  
Band Structure ◽  
Surface Plasmon ◽  
Plasmon Energy ◽  
Energy Dispersion ◽  
Acoustic Surface Plasmon

Acoustic Surface Plasmon on Cu(111) as an Excitation in the Mid-Infrared Range

2013 ◽  
Vol 117 (51) ◽  
pp. 26964-26968 ◽  
Author(s):  
Jan Pischel ◽  
Emanuel Welsch ◽  
Olaf Skibbe ◽  
Annemarie Pucci
Keyword(s):  
Surface Plasmon ◽  
Infrared Range ◽  
Mid Infrared ◽  
Acoustic Surface Plasmon

Acoustic Surface Plasmon Dispersion on Nanostructured Cu(111)

Plasmonics ◽  
2011 ◽  
Vol 7 (2) ◽  
pp. 323-329 ◽  
Author(s):  
Luca Vattuone ◽  
Gabriele Vercelli ◽  
Marco Smerieri ◽  
Letizia Savio ◽  
Mario Rocca
Keyword(s):  
Surface Plasmon ◽  
Plasmon Dispersion ◽  
Acoustic Surface Plasmon

Acoustic surface plasmon on Cu(111)

2010 ◽  
Vol 90 (5) ◽  
pp. 57006 ◽  
Author(s):  
K. Pohl ◽  
B. Diaconescu ◽  
G. Vercelli ◽  
L. Vattuone ◽  
V. M. Silkin ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Acoustic Surface Plasmon

scholarly journals Evidence for a spin acoustic surface plasmon from inelastic atom scattering

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
G. Benedek ◽  
M. Bernasconi ◽  
D. Campi ◽  
I. V. Silkin ◽  
I. P. Chernov ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Substantial Reduction ◽  
Closed Shell ◽  
Surface Exchange ◽  
Surface Phonon ◽  
Electron Phonon Interaction ◽  
Atom Scattering ◽  
Surface Phonons ◽  
Energy And Momentum ◽  
Acoustic Surface Plasmon

AbstractClosed-shell atoms scattered from a metal surface exchange energy and momentum with surface phonons mostly via the interposed surface valence electrons, i.e., via the creation of virtual electron-hole pairs. The latter can then decay into surface phonons via electron-phonon interaction, as well as into acoustic surface plasmons (ASPs). While the first channel is the basis of the current inelastic atom scattering (IAS) surface-phonon spectroscopy, no attempt to observe ASPs with IAS has been made so far. In this study we provide evidence of ASP in Ni(111) with both Ne atom scattering and He atom scattering. While the former measurements confirm and extend so far unexplained data, the latter illustrate the coupling of ASP with phonons inside the surface-projected phonon continuum, leading to a substantial reduction of the ASP velocity and possibly to avoided crossing with the optical surface phonon branches. The analysis is substantiated by a self-consistent calculation of the surface response function to atom collisions and of the first-principle surface-phonon dynamics of Ni(111). It is shown that in Ni(111) ASP originate from the majority-spin Shockley surface state and are therefore collective oscillation of surface electrons with the same spin, i.e. it represents a new kind of collective quasiparticle: a Spin Acoustic Surface Plasmon (SASP).

Comparison of sensitivity of the refractometric methods of frustrated total internal reflection and surface plasmon resonance

2020 ◽  
pp. 44-49
Author(s):  
I. N. Pavlov
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Total Internal Reflection ◽  
Resonance Method ◽  
Internal Reflection ◽  
Optical Methods ◽  
Thin Boundary Layer ◽  
Experimental Conditions ◽  
Frustrated Total Internal Reflection

Two optical methods, namely surface plasmon resonance imaging and frustrated total internal reflection, are described in the paper in terms of comparing their sensitivity to change of refractive index of a thin boundary layer of an investigated medium. It is shown that, despite the fact that the theoretically calculated sensitivity is higher for the frustrated total internal reflection method, and the fact that usually in practice the surface plasmon resonance method, on the contrary, is considered more sensitive, under the same experimental conditions both methods show a similar result.

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