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On the question of self-trapping of positrons in indium

Authors:	P. Rice-Evans Tin Hlaing I. Chaglar

Affiliation:	Department of Physics, Bedford College, University of London, Regents Park, London NW1, UK

Abstract:	The Doppler-broadening of the positron annihilation line in 5N indium has been studied over the temperature range 77 K to 427 K. No evidence for self-trapping has been discovered; rather, the prevacancy rise in the F-parameter appears linear. The best value for E_V is 0.59±0.03 eV.

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