Positron states in alkali-halide single crystals

K. P. Aref'ev, S. A. Vorob'ev, E. P. Prokop'ev

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1398-1401
Number of pages4
JournalSoviet Physics Journal
Volume17
Issue number10
DOIs
Publication statusPublished - 1 Dec 1976

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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