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Study of various approximations for the continuum planar potentials at channeling I. Monoatomic crystals
Author(s) -
Dedkov G. V.,
Gorshokov A. M.
Publication year - 1983
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.2221170105
Subject(s) - planar , electron , diamond , atomic physics , monatomic gas , physics , tungsten , silicon , atom (system on chip) , condensed matter physics , computational physics , materials science , quantum mechanics , computer graphics (images) , optoelectronics , computer science , metallurgy , composite material , embedded system
A detailed analysis of different approximations for the continuum planar potentials under the channeling conditions is given. The continuum potentials for positrons (electrons) channeled in (110) and (100) planes in crystals of diamond, silicon, and tungsten are calculated in different approximations to the screening function. The model of an atom with a piecewise exponentially decaying electron density is discussed. The influence of the thermal vibrations and the atomic shell structure on the potentials is investigated. Some estimates of the photon energy radiated at channeling of 56 MeV electrons in (110) planes of C are given.