Optical spectra of localized excess electrons in alkali halide clusters

Excess electrons attached to small alkali halide clusters give rise to optical-absorption bands whose characteristics are highly specific to the mode of electron localization. Optical spectra measured by cluster beam and resonant two-photon ionization spectroscopy agree well with predictions of coup...

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Bibliographic Details
Published in:Physical review letters 1990-06, Vol.64 (24), p.2933-2936
Main Authors: RAJAGOPAL, G, BARNETT, R. N, NITZAN, A, LANDMAN, U, HONEA, E. C, LABASTIE, P, HOMER, M. L, WHETTEN, R. L
Format: Article
Language:English
Subjects:
360603 - Materials- Properties
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COLOR CENTERS
Condensed matter: electronic structure, electrical, magnetic, and optical properties
CORRELATIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
Electron states
ELECTRONIC STRUCTURE
Electronic structure of disordered solids
Exact sciences and technology
EXPERIMENTAL DATA
F CENTERS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
ION PAIRS
IONIZATION
LOW TEMPERATURE
MASS SPECTRA
MATERIALS SCIENCE
NUMERICAL DATA
PHOTOIONIZATION
Physics
POINT DEFECTS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTRA
Theories and models
localized states
VACANCIES
VERY LOW TEMPERATURE
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Description
Summary:Excess electrons attached to small alkali halide clusters give rise to optical-absorption bands whose characteristics are highly specific to the mode of electron localization. Optical spectra measured by cluster beam and resonant two-photon ionization spectroscopy agree well with predictions of coupled classical-quantum simulations, and are interpreted in terms of two localization modes: surface {ital F}-center and diffuse surface states.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.64.2933