中国物理B ›› 1995, Vol. 4 ›› Issue (11): 847-855.doi: 10.1088/1004-423X/4/11/008

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

MULTI-ACTIVATION ENERGY DENSITY DISTRIBUTION AND THERMALLY STIMULATED CURRENT OF ELECTRIC DIPOLES IN CONDENSED MATTER

刘付德, 凌志远, 熊茂仁   

  1. Department of Inorganic Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
  • 收稿日期:1994-10-25 出版日期:1995-11-20 发布日期:1995-11-20

MULTI-ACTIVATION ENERGY DENSITY DISTRIBUTION AND THERMALLY STIMULATED CURRENT OF ELECTRIC DIPOLES IN CONDENSED MATTER

LIU FU-DE (刘付德), LING ZHI-YUAN (凌志远), XIONG MAO-REN (熊茂仁)   

  1. Department of Inorganic Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
  • Received:1994-10-25 Online:1995-11-20 Published:1995-11-20

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摘要： The physical meaning of the transcendental function in traditional thermally stimulated current (TSC) equation of electric dipoles with a single activation energy was first analyzed. Then a simple formula obtained directly from the tested TSC for calculating activation energy parameter, etc., was deduced. Numerical calculation showed that the exact TSC agrees with the approximated one very well. Further analysis found a limiting condition for the discrete to continuous activation energy density distribution and a criterion for discriminating the contributions to TSC by depolarization of the dipoles with multi-activation energy from those with a single one.

Abstract: The physical meaning of the transcendental function in traditional thermally stimulated current (TSC) equation of electric dipoles with a single activation energy was first analyzed. Then a simple formula obtained directly from the tested TSC for calculating activation energy parameter, etc., was deduced. Numerical calculation showed that the exact TSC agrees with the approximated one very well. Further analysis found a limiting condition for the discrete to continuous activation energy density distribution and a criterion for discriminating the contributions to TSC by depolarization of the dipoles with multi-activation energy from those with a single one.

中图分类号:  (Polarization and depolarization)

  • 77.22.Ej
77.84.-s (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)