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AbstractAbstract
[en] The authors have measured the diffusion of positrons in Nb(110) in the temperature range from 300K to 2450K utilizing a variable energy positron beam. The purpose was to study the vacancy formation. However, no significant sign of vacancy trapping was observed. This could be due to a high detrapping rate caused by a low positron binding energy or due to a high vacancy formation enthalpy H/sub IV//sup F/. The last possibility is consistent with recent studies of the vacancy migration and with calculation of the positron binding energy. In this case the authors find the H/sub IV//sup F/ > 3 eV
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Jain, P.C.; Singru, R.M.; Gopinathan, K.P; p. 464-465; 1985; p. 464-465; World Scientific Pub. Co; Philadelphia, PA (USA); 7. international conference on positron annihilation; New Delhi (India); 6-11 Jan 1985
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Book
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Conference
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ANTILEPTONS, ANTIMATTER, ANTIPARTICLES, CRYSTAL STRUCTURE, ELEMENTARY PARTICLES, ELEMENTS, ENERGY, EQUILIBRIUM, FERMIONS, FREE ENTHALPY, INTERACTIONS, LEPTONS, MATTER, METALS, NATIONAL ORGANIZATIONS, PARTICLE INTERACTIONS, PHYSICAL PROPERTIES, POINT DEFECTS, RADIATION EFFECTS, THERMODYNAMIC PROPERTIES, TRANSITION ELEMENTS, US AEC, US DOE, US ERDA, US ORGANIZATIONS
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