La2CuO4: Ln2复合材料的弱耦合理论

Journal of molecular electronics Pub Date : 1988-10-01 DOI:10.1142/S0217979288000494

I. Dzyaloshinskiǐ, V. Yakovenko

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引用次数: 7

摘要

在具有方形费米曲面的二维电子模型中，推导了ln2-parquet方程，并对其进行了数值求解。表明该模型能较好地描述弱耦合极限下的La2CuO4。主要的结果是一个电荷的哈伯德模型和四个有效电荷的模型之间有很大的不同，描述了一般形式的相互作用。

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A weak coupling theory for La2CuO4: Ln2 parquet approach

In the model of two-dimensional electrons with a square Fermi surface , ln2-parquet equations are derived and numerically solved. It is suggested that this model can describe La2CuO4 in the weak coupling limit. The main result is a strong difference between the Hubbard model with one charge and the model with four effective charges, describing an interaction of a general form.

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Journal of molecular electronics

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