中国物理B ›› 1993, Vol. 2 ›› Issue (1): 56-64.doi: 10.1088/1004-423X/2/1/008

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INVESTIGATION OF THE EFFECT OF SLOW NEUTRON IRRADIATION ON HALOGEN-DOPED HIGH-Tc SUPERCONDUCTORS AND ITS MECHANISM

庄瑞芳1, 谢晖1, 金继荣2, 金新2, 吉和林2, 张贻瞳2, 徐小农2, 施智祥2, 张治平2, 姚希贤2   

  1. (1)Department of Chemistry, Institute of Coordination Chemistry, Nanjing University, Nanjing 210008, China; (2)Department of Physics, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008, China
  • 收稿日期:1992-01-08 出版日期:1993-01-20 发布日期:1993-01-20
  • 基金资助:
    Project supported by the National Center for Research and Development on Superconductivity of China and the Foundation for Doctoral Education.

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   

  1. 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
  • Received:1992-01-08 Online:1993-01-20 Published:1993-01-20
  • Supported by:
    Project supported by the National Center for Research and Development on Superconductivity of China and the Foundation for Doctoral Education.

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摘要： 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,γ) reaction.

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.

中图分类号: 

  • 74.25.Qt
61.80.Hg (Neutron radiation effects)