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Influence of the Electron Charge Distribution on Surface-Plasmon Dispersion
Abstract
The effects of the spatial variation of the electron density on the surface-plasmon dispersion relation are investigated. We show that measurements of that relation are a useful probe of the electron density in the surface region. Previous calculations on homogeneous materials have predicted a linear or quadratic dependence of the frequency on momentum parallel to the surface. We find that the usual surface-plasmon resonance frequency at first decreases with increasing momentum and then increases with further increases in momentum. This behavior agrees with the experimentally observed dispersion. Additional higher-frequency surface modes, similar to those observed in laboratory plasmas, are identified.
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Cited by
Theory of surface plasmons and surface-plasmon polaritons
Pitarke, J. M., Silkin, V. M., Chulkov, E. V., & Echenique, P. M. (2007) · Reports on Progress in Physics · doi:10.1088/0034-4885/70/1/r01 · Cited by 1,524
Nonlocal optical response in metallic nanostructures
Raza, S., Bozhevolnyi, S. I., Wubs, M., & Asger Mortensen, N. (2015) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/27/18/183204 · Cited by 435
The Density-Functional Formalism and the Electronic Structure of Metal Surfaces
Lang, N. D. (1974) · Solid State Physics · doi:10.1016/s0081-1947(08)60204-0 · Cited by 358
Harmonic-Potential Theorem: Implications for Approximate Many-Body Theories
Dobson, J. F. (1994) · Physical Review Letters · doi:10.1103/physrevlett.73.2244 · Cited by 321
Theoretical foundations of quantum hydrodynamics for plasmas
Moldabekov, Z. A., Bonitz, M., & Ramazanov, T. S. (2018) · Physics of Plasmas · doi:10.1063/1.5003910 · Cited by 159
Metadata
- Authors
- Bennett, A. J.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1970-01-01
- Volume
- 1
- Issue
- 1
- Pages
- 203-207
- ISSN
- 0556-2805 (ISSN-L)
- OpenAlex
- W1985179161
- Cited by
- 265
- References
- 0
- FWCI
- 18.61
- Type
- journal article
- Language
- en
- Open access
- closed
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