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本文用VCA和CPA方法计算了Al_xSi_(1-x)合金的电子态密度.能带计算采用经验LCAO方法.所得结果与Verges用非晶的Bethe晶格模型的计算结果相符.据我们所知,这是首次尝试用VCA和CPA方法研究非晶体系的电子结构.
In this paper, the electronic density of states of Al_xSi_ (1-x) alloys was calculated by VCA and CPA methods.The empirical LCAO method was used to calculate the energy bands.The obtained results are in good agreement with those of Verges by the amorphous Bethe lattice model.As far as we know, This is the first attempt to study the electronic structure of amorphous systems using the VCA and CPA methods.