Abstract
Detailed consideration is given to the annihilatory decay of positron states in real alkali-halide single crystals of defective structure. Representations of the exciton-positron states in the matrix of the crystal and close to a lattice defect are analyzed. On the basis of these representations, expressions are derived for the yield of the three-quantum decay process and the intensities of the components contributing to two-quantum annihilation; the expressions agree with existing experimental data. It is shown that the greatest contribution to the three-quantum decay arises from an exciton-orthopositronium state located in the vicinity of the defect.
Original language | English |
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Pages (from-to) | 1398-1401 |
Number of pages | 4 |
Journal | Soviet Physics Journal |
Volume | 17 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Dec 1976 |
ASJC Scopus subject areas
- Physics and Astronomy(all)