中国物理B ›› 1995, Vol. 4 ›› Issue (1): 54-61.doi: 10.1088/1004-423X/4/1/008

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

A TWO-STATE MODEL FOR NON-EXPONENTIAL RELAXATION IN CONDENSED MATTER

文超   

  1. Department of Physics, Northern Jiaotong University, Beijing 100044, China
  • 收稿日期:1993-11-12 出版日期:1995-01-20 发布日期:1995-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

A TWO-STATE MODEL FOR NON-EXPONENTIAL RELAXATION IN CONDENSED MATTER

WEN CHAO (文超)   

  1. Department of Physics, Northern Jiaotong University, Beijing 100044, China
  • Received:1993-11-12 Online:1995-01-20 Published:1995-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： A two-state model is presented for polarization relaxation in condensed matter. The dynamics of relaxation is treated with quantum transition theory. The physical meaning of the so-called time-dependent transition rate is clarified. The new model not only gives the fractional exponential and power-law relaxation functions naturally, but also indicates that the universality of the relaxation law results from the scaling behavior of low-frequency effective spectrum.

Abstract: A two-state model is presented for polarization relaxation in condensed matter. The dynamics of relaxation is treated with quantum transition theory. The physical meaning of the so-called time-dependent transition rate is clarified. The new model not only gives the fractional exponential and power-law relaxation functions naturally, but also indicates that the universality of the relaxation law results from the scaling behavior of low-frequency effective spectrum.

中图分类号:  (Dielectric loss and relaxation)

  • 77.22.Gm