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arXiv · 0809.3993

Spiky density of states in large complex Al-Mn phases

Guy Trambly De Laissardière
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Abstract

First-principle electronic structure calculations have been performed in crystalline complex phases mu-Al4Mn and lambda-Al4Mn using the TB-LMTO method. These atomic structures, related to quasicrystalline structures, contain about 560 atoms in a large hexagonal unit cell. One of the main characteristic of their density of states is the presence of fine peaks the so-called "spiky structure". From multiple-scattering calculations in real space, we show that these fine peaks are not artifacts in ab-initio calculations, since they result from a specific localization of electrons by atomic clusters of different length scales.

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Guy Trambly De Laissardière. 2008-09-23. Spiky density of states in large complex Al-Mn phases. https://doi.org/10.1524/zkri.2009.1092

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