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
文超
WEN CHAO (文超)
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.
中图分类号: (Dielectric loss and relaxation)