一种新的有效声子谱

A New Effictive Phonon─Spectrum

本文利用级数展开的方法提出了一种新的有效声子谱的表达式，并将新谱用于对＜ω＞和＜ω２＞的计算．结果表明，对大多数超导材料，理论值与实验值符合的很好．

Using the method of progression spread out, we proposed a new effictivephonon-spectrum model. And compared the new phonon-spectrum model with theBergmann model. The conclusion showed that the new spectrum is better than the Bergmann's formajority materials.