INVESTIGATION OF THE EFFECT OF SLOW NEUTRON IRRADIATION ON HALOGEN-DOPED HIGH-Tc SUPERCONDUCTORS AND ITS MECHANISM
JIN JI-RONG (金继荣)a, JIN XIN (金新)a, JI HE-LIN (吉和林)a, ZHANG YI-TONG (张贻瞳)a, XU XIAO-NONG (徐小农)a, SHI ZHI-XIANG (施智祥)a, ZHANG ZHI-PING (张治平)a, YAO XI-XIAN (姚希贤)a, ZHUANG RUI-FANG (庄瑞芳)b, XIE HUI (谢晖)b
a Department of Physics, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008, China; b Department of Chemistry, Institute of Coordination Chemistry, Nanjing University, Nanjing 210008, China
Abstract Irradiation effect of low-fluence (-108 n/cm2 ) slow neutrons on halogen-doped superconductors is presented in this paper. And the mechanism of the effect is also described from the viewpoint of nuclear physics for both fast and slow neutrons on high-temperature superconductors (HTSC). It is shown ex-perimentally and theoretically that slow neutrons of low fluence has a similar irradiation effect to that of fast neutron beams with an energy En>0.1 MeV and fluence 1016-1018 n/cm2-However,quite differ-ent mechanisms are involved in them: Fast neutrons transfer their energies through elastic scattering in HTSC, whereas slow neutrons give off their energies during the slow neutron capture (n, $\gamma$) reaction.
Received: 08 January 1992
Accepted manuscript online:
Fund: Project supported by the National Center for Research and Development on Superconductivity of China and the Foundation for Doctoral Education.
Cite this article:
JIN JI-RONG (金继荣), JIN XIN (金新), JI HE-LIN (吉和林), ZHANG YI-TONG (张贻瞳), XU XIAO-NONG (徐小农), SHI ZHI-XIANG (施智祥), ZHANG ZHI-PING (张治平), YAO XI-XIAN (姚希贤), ZHUANG RUI-FANG (庄瑞芳), XIE HUI (谢晖) INVESTIGATION OF THE EFFECT OF SLOW NEUTRON IRRADIATION ON HALOGEN-DOPED HIGH-Tc SUPERCONDUCTORS AND ITS MECHANISM 1993 Acta Physica Sinica (Overseas Edition) 2 56
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