Investigation of Effect and Mechanisms of Slow Neutro Irradiation on High-T_c Superconductors  

作　　者：金继荣 金新 吉和林 张贻瞳 韩国胜 徐小农 嵇家本 姚希贤 胡梅生 赵小玲 

机构地区：[1]Department of Physics,State Key Laboratory of Solid State Microstructures,Naniing University,Nanjing 210008,PRC [2]Center of Material Analysis,Nanjing University,Nanjing 210008,PRC

出　　处：《Science China Mathematics》1993年第3期376-384,共9页中国科学：数学（英文版）

基　　金：Project supported by the National Center for Research and Development on Superconductivity of China and the Foundation for Doctoral Education.

摘　　要：The irradiation effect of slow neutrons at low fluence on high-T_c super-conductors and its mechanism are presented.Based on an analysis and comparison of irra-diation effects by fast and slow neutrons from the viewpoint of nuclear physics,a novelmechanism in great contrast to that by fast neutron irradiation is proposed.It was bothexperimentally and theoretically shown that slow neutrons of low fluence and fast neutronsof high fluence have the similar irradiation effects on high-T_c superconductors.The irradiation effect of slow neutrons at low fluence on high-T_c super- conductors and its mechanism are presented.Based on an analysis and comparison of irra- diation effects by fast and slow neutrons from the viewpoint of nuclear physics,a novel mechanism in great contrast to that by fast neutron irradiation is proposed.It was both experimentally and theoretically shown that slow neutrons of low fluence and fast neutrons of high fluence have the similar irradiation effects on high-T_c superconductors.

关 键 词：high-T_c SUPERCONDUCTOR irradiation-induced defects flux PINNING critical current density slow-neutron CAPTURE reaction 

分 类 号：N[自然科学总论]