Properties of the magnetically quenchable positron state in alkali halides
- 12 April 1973
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 6 (7) , 1125-1133
- https://doi.org/10.1088/0022-3719/6/7/005
Abstract
Relates to a thorough investigation of the magnetic quenching of positron decay in those alkali halides displaying a two component time annihilation spectrum. In all cases examined the second spectral component was found to be caused by the decay of a positronium-like system. Furthermore, the authors noted that the overlap probability of the interacting electron-positron pair is determined by the anion and linearly increases with the cube of the ion radius. These results are discussed with reference to the existing models relating to the fate of positrons in ionic crystals. An alternative model is proposed.Keywords
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