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- Title
Dipole Polarizabilities and Absorption Cross Sections of Two-Particle Nanoclusters of Conductive Homogeneous and Layered Particles with the Degenerate Electron Gas.
- Authors
Kucherenko, M.; Nalbandyan, V.
- Abstract
Frequency dependences of the dipole polarizabilities of clusters consisting of two solid conducting spherical nanoparticles and double-layer metal nanoparticles are investigated versus the geometrical parameters of the system with taking into account the degeneracy of electron gas of its metallic components. It is established that the spectra of the dynamic polarizabilities and absorption cross-sections of clusters have a complex multiresonant structure and strong dependence on the configuration parameters of the cluster, the degree of degeneracy of the metal, and kinetic characteristics of its electron gas. Spectral transformations of the absorption cross-sections of nanoclusters are illustrated under variation of the radii of particles or theirs nuclei, characteristic lengths of the Thomas-Fermi screening, and frequency of electron collisions. The anisotropic nature of absorption of electromagnetic field energy by a cluster is established: it is shown that the value of the absorption cross section depends on the direction of the electric field strength vector relative to the axis of the cluster.
- Subjects
DIPOLE interactions; DEGENERATE electron gas; NANOPARTICLES; POLARIZATION (Nuclear physics); SURFACE plasmon resonance
- Publication
Russian Physics Journal, 2017, Vol 59, Issue 9, p1425
- ISSN
1064-8887
- Publication type
Article
- DOI
10.1007/s11182-017-0926-9