Deformation-induced microvoids in bismuth and possible positronium formation
作者： J M Clayton , S G Usmar , H M Fretwell , I K MacKenzie , M A Alarn
DOI: 10.1088/0953-8984/7/16/012
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摘要: Positron annihilation spectroscopy is used to study the annealing stages in cold worked single and polycrystalline bismuth. A large drop (onset approximately 240 K) observed Doppler-broadening lineshape measurement, agreement with previous work. Results of positron lifetime experiments, conducted around main stage, suggest formation positronium at microvoids Bi.
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