Details
| Original language | English |
|---|---|
| Article number | 127405 |
| Journal | Physical Review Letters |
| Volume | 110 |
| Issue number | 12 |
| Publication status | Published - 22 Mar 2013 |
Abstract
The linear dispersion of the low-dimensional acoustic surface plasmon (ASP) opens perspectives in energy conversion, transport, and confinement far below optical frequencies. Although the ASP exists in a wide class of materials, ranging from metal surfaces and ultrathin films to graphene and topological insulators, its properties are still largely unexplored. Taking Au(111) as a model system, our combined experimental and theoretical study revealed an intriguing interplay between collective and single particle excitations, causing the ASP associated with the Shockley surface state to be embedded within the intraband transitions without losing its sharp character and linear dispersion.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 110, No. 12, 127405, 22.03.2013.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Correlated motion of electrons on the Au(111) surface
T2 - Anomalous acoustic surface-plasmon dispersion and single-particle excitations
AU - Vattuone, L.
AU - Smerieri, M.
AU - Langer, Thomas
AU - Tegenkamp, Christoph
AU - Pfnür, Herbert
AU - Silkin, V. M.
AU - Chulkov, E. V.
AU - Echenique, P. M.
AU - Rocca, M.
PY - 2013/3/22
Y1 - 2013/3/22
N2 - The linear dispersion of the low-dimensional acoustic surface plasmon (ASP) opens perspectives in energy conversion, transport, and confinement far below optical frequencies. Although the ASP exists in a wide class of materials, ranging from metal surfaces and ultrathin films to graphene and topological insulators, its properties are still largely unexplored. Taking Au(111) as a model system, our combined experimental and theoretical study revealed an intriguing interplay between collective and single particle excitations, causing the ASP associated with the Shockley surface state to be embedded within the intraband transitions without losing its sharp character and linear dispersion.
AB - The linear dispersion of the low-dimensional acoustic surface plasmon (ASP) opens perspectives in energy conversion, transport, and confinement far below optical frequencies. Although the ASP exists in a wide class of materials, ranging from metal surfaces and ultrathin films to graphene and topological insulators, its properties are still largely unexplored. Taking Au(111) as a model system, our combined experimental and theoretical study revealed an intriguing interplay between collective and single particle excitations, causing the ASP associated with the Shockley surface state to be embedded within the intraband transitions without losing its sharp character and linear dispersion.
UR - http://www.scopus.com/inward/record.url?scp=84875417525&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.127405
DO - 10.1103/PhysRevLett.110.127405
M3 - Article
AN - SCOPUS:84875417525
VL - 110
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 12
M1 - 127405
ER -