Block-Diagonalization and f-electron Effects in Tight-Binding Theory

Details Block-Diagonalization and f-electron Effects in Tight-Binding Theory Block-Diagonalization and f-electron Effects in Tight-Binding Theory

2002-05-22

arxiv.org/abs/cond-mat/0205459v2

Physics

Condensed Matter

Materials Science

9 pages, 6 figures

Scientific paper

10.1103/PhysRevB.66.134105

We extend a tight-binding total energy method to include f-electrons, and apply it to the study of the structural and elastic properties of a range of elements from Be to U. We find that the tight-binding parameters are as accurate and transferable for f-electron systems as they are for d-electron systems. In both cases we have found it essential to take great care in constraining the fitting procedure by using a block-diagonalization procedure, which we describe in detail.

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