Gutzwiller Density Functional Theory: a formal derivation and application to ferromagnetic nickel

Abstract

We present a detailed derivation of the Gutzwiller Density Functional Theory that covers all conceivable cases of symmetries and Gutzwiller wave functions. The method is used in a study of ferromagnetic nickel where we calculate ground state properties (lattice constant, bulk modulus, spin magnetic moment) and the quasi-particle band structure. Our method resolves most shortcomings of an ordinary Density Functional calculation on nickel. However, the quality of the results strongly depends on the particular choice of the double-counting correction. This constitutes a serious problem for all methods that attempt to merge Density Functional Theory with correlated-electron approaches based on Hubbard-type local interactions.

35 pages, 3 figures, 1 table

References in corpus (4)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Correlated Topological Insulators with Mixed Valence
• Gutzwiller density functional theory for correlated electron systems
• LDA+Gutzwiller Method for Correlated Electron Systems

Cited by in corpus (4)

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• Coulomb matrix elements in multi-orbital Hubbard models
• Gutzwiller variational approach to the two-impurity Anderson model at particle-hole symmetry
• Strong parameter renormalization from optimum lattice model orbitals