The Double Effects and Mechanism of Slow Neutron Irradiation on HTSC  

作　　者：金继荣 金新 韩永胜 吉和林 史可信 朱玉振 张治平 姚希贤 王弘 王卓 

机构地区：[1]Department of Physics and State Key Laboratory of Solid State Microstructures, Nanjing University,Nanjing 210008, PRC [2]Institute of Crystal Materials, Shandong University, Jinan 250100, PRC

出　　处：《Chinese Science Bulletin》1994年第3期198-202,共5页

基　　金：National Centre for Research;Development of Superconductivity;Foundation for Doctoral Education of China.

摘　　要：1 Introduction It is very important for practical application of HTSC to increase the critical cur-rent density （J_c）by artificially introducing pinning centers to enhance flux pinning.Ex-periment results show that neutron radiation is 1000 times more effective than theelectron and proton radiation.So in recent years,the neutron radiation has becomepopular,theoretically and practically.After irradiation of fast neutrons in high flux,the magnetization ratio of polycrystal samples of Y and Bi Systems are M_irr/M_unirr≈2.8—3.1.But T_c is descending with the neutron flux increasing and the decreasingratio is about（2.6—3.0 K）/(10¹⁸ n/cm²).

关 键 词：HTSC JC Tc SLOW NEUTRON IRRADIATION irradiation-induced defects. 

分 类 号：O571.5[理学—粒子物理与原子核物理]