The Periodic LUC‐MINDO Method and its Application to Diamond

Abstract
In previous work it is shown that neither the periodic LUC‐CNDO nor LUC‐INDO formalisms are accurate enough to yield reliable values for the bulk properties of the homopolar covalent solids. Calculations based on the more sophisticated MINDO molecular orbital method appears more successful, however. In this paper the periodic LUC‐MINDO method is outlined and its application to diamond is considered. The predicted one‐electron eigenvalues, bulk elastic constants, and phonon frequencies are now found to be in very satisfactory agreement with experiment.