This paper studies the critical behavior of the Heisenberg film in the two- atomcluster model with two-Heisenberg spins in the Ising surrounding.
在相关有效场理论框架内，应用类伊辛模型分析方法，研究了海森堡薄膜的临界行为。
2
The calculation results showed that Ab initio had its advantages in the calculating of atomcluster, especially in the aspect of precision and total energy calculation.
计算结果表明：从头计算方法用于原子簇的计算在精度和总能量计算方面有其自身的优势；
3
However, the mean atom distance depends on not only the cluster size, but also the cluster structure, which can be regarded as the criterion of determining the structure transformation.