摘要
通过简谐振动的二次量子化表示形式讨论了钙钛矿型先兆性铁电体中的量子涨落,从而运用平均场近似下的软模理论导出了直至0K附近的介电常数的表达式。
The quantum fluctuation in perovskite -structured incipient ferroelectrics is discussed via the second quantization with simple harmonic oscillation,which leads to the expression of dielectric co nstants right to the neighborhood of OK with the application of the soft-mode theory under the mean field approximation.
出处
《铁道师院学报》
2002年第4期11-15,共5页
Journal of Suzhou Railway Teachers College(Natural Science Edition)
