Calculation of Free Volume in Computer Generated Grain Boundaries
S. Van Petegema and J. Kuriplachb
aNUM/ASQ, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
bDepartment of Low Temperature Physics, Charles University, V Holešovičckách 2, 180 00 Prague, Czech Republic
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Received: 20 09 2004;
We investigate the positron lifetime distribution in grain boundaries originating from computer generated nanocrystalline configurations. We give a brief overview of the computational methods and we discuss the influence of thermal vibrations and grain size on the obtained positron lifetime distributions.
DOI: 10.12693/APhysPolA.107.769
PACS numbers:78.70.Bj, 61.46.+w, 61.72.Mm, 68.35.Dv