Stopping power of atoms near metal surfaces at grazing incidence condition
作者:
M. Kato,
Y. H. Ohtsuki,
期刊:
physica status solidi (b)
(WILEY Available online 1986)
卷期:
Volume 133,
issue 1
页码: 267-275
ISSN:0370-1972
年代: 1986
DOI:10.1002/pssb.2221330131
出版商: WILEY‐VCH Verlag
数据来源: WILEY
摘要:
AbstractThe energy loss of slow atoms is studied from the viewpoint of the indirect excitation of low‐energy electron–hole pairs, i.e., the excitations of electron–hole pairs through the electron exchange process from the metal to the projectile's atomic states, and vice versa. For the slow atom,v≪vF(vandvFare the velocity of the projectile and the Fermi velocity, respectively), electrons have enough velocity for response, thus the atomic states are not well defined due to the screening effect and the electron exchange processes. By constructing the model Hamiltonian which describes such effects from first principles the stopping power at grazing incidence condition, especially for the Cs surface, is cal
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