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The Excitation of Polarization Waves in Bound Electronic States
Author(s) -
Hartley B. M.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690310131
Subject(s) - excitation , atomic physics , polarization (electrochemistry) , spectral line , ionization , electron , bound state , electron excitation , physics , chemistry , ion , quantum mechanics
The appearance of broad peaks in the electron energy loss spectra of elements in the first, second, and third long periods of the periodic table is discussed. It is shown that these peaks are similar to peaks which can be calculated by assuming absorption processes appropriate to ionization of bound states in these metals. By comparison with the calculated peaks and with the known optical constants of graphite a mode of excitation in the form of a collective polarization wave in these bound states is proposed. The possibility of deriving the optical constants of materials from their electron energy loss spectra is discussed.