Nonlocal response of a small coated sphere

Journal Article · Fri Apr 15 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.6799· OSTI ID:5444205

Rojas, R; Claro, F; Fuchs, R

A theory for the response of a small spherical particle with a coating is developed using the semiclassical infinite-barrier model. Both the core and the outer layer are described by a nonlocal dielectric function. The theory is applied to an Al/sub 2/O/sub 3/-coated Al sphere and to an Sn-coated Al/sub 2/O/sub 3/ sphere, and we find the coating to dominate the high-multipole response of the particle in either case. The optical-absorption and scanning tunneling electron microscopy spectra of the above systems are discussed.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• OSTI ID: 5444205
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:12; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION SPECTRA
ALUMINIUM
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BASIC INTERACTIONS
CHALCOGENIDES
CONFIGURATION
COUPLING
DEPOSITION
ELECTRIC FIELDS
ELECTROMAGNETIC INTERACTIONS
ELECTRON MICROSCOPY
ELECTRON-HOLE DROPLETS
ELEMENTS
FUNCTIONS
INTERACTIONS
METALS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PLASMA
RESPONSE FUNCTIONS
SCANNING ELECTRON MICROSCOPY
SOLID-STATE PLASMA
SPECTRA
SPHERICAL CONFIGURATION
SURFACE COATING
TIN