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The Double Effects and Mechanism of Slow Neutron Irradiation on HTSC

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【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；

【Author】 JIN Ji-Rong JIN Xin HAN YongShengJI He-Lin SHI Ke-Xin, ZHU Yu-ZhenZHANG Zhi-Ping YAO Xi-Xian(Department of Physics and State Key Laboratory of Solid State Microstructures, Nanjing University,Nanjing 210008, PRC)WANG Hong and WANG Zhuo(Institute of Crystal Materials, Shandong University, Jinan 250100, PRC)

【机构】 Department of Physics and State Key Laboratory of Solid State Microstructures； Nanjing University； Nanjing 210008； PRC； Institute of Crystal Materials； Shandong University； Jinan 250100； PRC；

【摘要】 <正> 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).更多还原

【关键词】 HTSC； Jc； Tc； slow neutron irradiation； irradiation-induced defects.；
【Key words】 HTSC； Jc； Tc； slow neutron irradiation； irradiation-induced defects.；

【基金】 National Centre for Research;Development of Superconductivity;Foundation for Doctoral Education of China.

【文献出处】 Chinese Science Bulletin ,科学通报(英文版) , 编辑部邮箱 ,1994年03期

【分类号】O571.5
【下载频次】8

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