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 |
|---|---|
| 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 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Positron states in alkali-halide single crystals. / Aref'ev, K. P.; Vorob'ev, S. A.; Prokop'ev, E. P.
In: Soviet Physics Journal, Vol. 17, No. 10, 01.12.1976, p. 1398-1401.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Positron states in alkali-halide single crystals
AU - Aref'ev, K. P.
AU - Vorob'ev, S. A.
AU - Prokop'ev, E. P.
PY - 1976/12/1
Y1 - 1976/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34250405960&partnerID=8YFLogxK
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U2 - 10.1007/BF00891293
DO - 10.1007/BF00891293
M3 - Article
VL - 17
SP - 1398
EP - 1401
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 10
ER -