It is proved strictly that this incommensurate phase transition is of secondorder.
严格证明了该非公度相变是第二类的。
2
The second-order NLO properties of a series of tri-nuclear transition metal clusters with incomplete cubane-like structures were studied by using the first-principle quantum chemical method.
研究了具有欠完整立方烷构型的过渡金属原子簇分子的二阶非线性光学性质。
3
We introduce a diffusion-ZGB model including the diffusion of o and co for the surface catalytic reaction of O2 and co, and eliminate the second-order phase transition naturally.