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Theoretical Calculation of Positron Annihilation Angular Correlation Anisotropy in GaP
Author(s) -
Panda B. K.,
Mahapatra D. P.,
Padhi H. C.
Publication year - 1991
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.2221670115
Subject(s) - anisotropy , physics , positron , pseudopotential , annihilation , formalism (music) , annihilation radiation , positron annihilation , angular momentum , wave function , nuclear physics , computational physics , atomic physics , quantum mechanics , art , musical , visual arts , electron
Angular correlation of positron annihilation radiation along [100] and [111] directions of GaP are calculated using pseudopotential formalism. The positron wave‐function is solved in point core approximation. The calculated 2 γ momentum distribution anisotropy agrees reasonably with the experimental data.