On the temperature dependence of the positron annihilation spectrum from a single crystal of zinc
作者： P Rice-Evans , A A Berry , I Chaglar
DOI: 10.1088/0305-4608/13/10/029
关键词: Anisotropy 、 Positron annihilation 、 Single crystal 、 Enthalpy 、 Physics 、 Zinc 、 Spectrum (functional analysis) 、 Atomic physics 、 Trapping 、 Line (formation)
摘要: The Doppler-broadened positron annihilation spectrum from a single crystal of zinc has been studied as function temperature and the direction photon emission. An anisotropy in behaviour line height parameter was observed prevacancy region with linear slopes 0.60*10-4K-1 (0001) 1.02*10-4K-1 for (1010). Optimum fittings two-state trapping model gave differing values monovacancy formation enthalpy, implying an inadequacy present understanding rise.
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