Void Shapes and o-Ps Lifetime in Molecular Crystals

• Authors: B. Jasińska , A. Kozioł , T. Goworek
• Languages of publication: EN

Abstracts

EN

The size and shape of the free volume in molecular crystals was estimated from crystallographic data. The o-Ps lifetime values were calculated from respective models and compared with the experimental data. The best agreement for channel-like voids has been obtained for the value of DR parameter equal 0.19 nm. The threshold value of radius allowing Ps trapping in the void was found to be (0.12-0.13) nm.

Keywords

EN

78.70.Bj

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 95
• Issue: 4
• Pages: 557-561

Dates

published

1999-04

Contributors

author

B. Jasińska

• Institute of Physics, Maria-Curie Skłodowska University, 20-031 Lublin, Poland

author

A. Kozioł

• Department of Crystallography, Institute of Chemistry, Maria-Curie Skłodowska University, 20-031 Lublin, Poland

author

T. Goworek

• Institute of Physics, Maria-Curie Skłodowska University, 20-031 Lublin, Poland

Identifiers

DOI

10.12693/APhysPolA.95.557