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Positron Annihilation Angular Correlation Studies in GaSb
Author(s) -
Panda B. K.,
Mahapatra D. P.,
Padhi H. C.
Publication year - 1992
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.2221690111
Subject(s) - pseudopotential , wave function , positron , atomic physics , physics , anisotropy , electron , positron annihilation , annihilation , photon , condensed matter physics , nuclear physics , quantum mechanics
Two‐photon angular correlation lineshapes along [100] and [111] crystallographic directions of GaSb are reported. The theoretical calculations of the lineshapes are carried out employing the pseudopotential band model for the calculation of the electron wavefunction. The positron wavefunction is evaluated under the point core approximation. The calculated lineshapes and their anisotropies are in good agreement with the experimental data.