Induced polarization by charged particles in real solids

Authors
Campillo, I Pitarke, JM
Citation
I. Campillo et Jm. Pitarke, Induced polarization by charged particles in real solids, NUCL INST B, 164, 2000, pp. 161-167
Citations number
46
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
164
Year of publication
2000
Pages
161 - 167
Database
ISI
SICI code
0168-583X(200004)164:<161:IPBCPI>2.0.ZU;2-O
Abstract
We report a first-principles description of the induced wake potential and density in real solids. The linear-response formalism is used to obtain the potential and density induced by an external charge penetrating through an inhomogeneous periodic system. The linear dynamical response of the system is evaluated in the random-phase approximation, by including the full band structure of the solid. The impact of the periodic crystalline potential i s analyzed, and variations of the wake along different channels is studied for aluminum and silicon. (C) 2000 Elsevier Science B.V. All rights reserve d.