https://doi.org/10.1007/s100510050524
Charge transfers in complex transition metal alloys (Ti2Fe)
Laboratoire de Physique des Solides, associé au CNRS,
Université de Paris-Sud, Centre d'Orsay, 91405 Orsay, France
Corresponding author: a abra@lps.u-psud.fr
Received:
7
July
1997
Revised:
10
March
1998
Accepted:
3
April
1998
Published online: 15 November 1998
We introduce a new Non-Orthogonal Tight-Binding model, for complex alloys, in which electronic structure is characterized by charge transfers. We give the analytic calculation of a charge transfer, in which overlapping two-center terms are rigorously taken into account. Then, we apply numerically this result to an approximant phase of a quasicrystal of Ti2Fe alloy. This model is more particularly adapted to transition metals, and gives realistic densities of states.
PACS: 61.44.-n – Semi-periodic solids / 61.66.Dk – Alloys / 71.10.-w – Theories and models of many electron systems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998