摘要
系统研究了室温下石墨及富勒烯晶体的正电子湮没寿命，发现Ｃ６０及Ｃ６０／Ｃ７０的寿命值分别为３７９ｐｓ和３８８ｐｓ，并给出纯Ｃ７０的双寿命拟合值为２５８ｐｓ和４１０ｐｓ．
Positron lifetime measturements at room temperature have been performed for fullerite of C60/C70,C60(99.9%)and C70(97%).It has been found that the spectra for C60/C70 and C60 hairs one component lifetime of 388 ps and 379 ps respectively,and the C70 spectrum has two components with lifetimes of 258 ps and 410 ps,respectively.
出处
《核技术》
CAS
CSCD
北大核心
1994年第12期718-721,共4页
Nuclear Techniques
基金
国家科委基础研究处及上海市自然科学基金
