Metal-Insulator Transitions and Realistic Modelling of Correlated Electron Systems

Georg Keller, Dieter Vollhardt, Karsten Held, Volker Eyert and Vladimir I. Anisimov
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Georg Keller: University of Augsburg, Center for Electronic Correlations and Magnetism, Theoretical Physics III Institute for Physics
Dieter Vollhardt: University of Augsburg, Center for Electronic Correlations and Magnetism, Theoretical Physics III Institute for Physics
Karsten Held: University of Augsburg, Center for Electronic Correlations and Magnetism, Theoretical Physics III Institute for Physics
Volker Eyert: University of Augsburg, Center for Electronic Correlations and Magnetism, Theoretical Physics III Institute for Physics
Vladimir I. Anisimov: Institute of Metal Physics Ekaterinburg

A chapter in High Performance Computing in Science and Engineering, Munich 2002, 2003, pp 217-226 from Springer

Abstract: Abstract The calculation of physical properties of electronic systems by controlled approximations is one of the most important challenges of modern theoretical solid state physics. In particular, the physics of transition metal oxides — a singularly important group of materials both from the point of view of fundamental research and technological applications — may only be understood by explicit consideration of the strong effective interaction between the conduction electrons in these systems. The investigation of electronic many-particle systems is made especially complicated by quantum statistics, and by the fact that the phenomena of interest (e.g., metal insulator transitions and fer-romagnetism) usually require the application of non-perturbative theoretical techniques.

Keywords: Local Density Approximation; Auxiliary Field; Correlate Electron System; Local Density Approximation Calculation; Anderson Impurity Model (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1007/978-3-642-55526-8_18

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