245 citations · 3.3k across the 86 of their papers we have counts for
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First-Principles Many-Body Investigation of Correlated Oxide Heterostructures: Few-Layer-Doped SmTiO
Frank Lechermann
Correlated oxide heterostructures pose a challenging problem in condensed matter research due to their structural complexity interweaved with demanding electron states beyond the e…
Rigorous symmetry adaptation of multiorbital rotationally invariant slave-boson theory with application to Hund's rules physics
Christoph Piefke, Frank Lechermann
The theory of correlated electron systems on a lattice proves notoriously complicated because of the exponential growth of Hilbert space. Mean-field approaches provide valuable ins…
Realistic many-body approaches to materials with strong nonlocal correlations
F. Lechermann, A. I. Lichtenstein, M. Potthoff
Many of the fascinating and unconventional properties of several transition-metal compounds with partially filled d-shells are due to strong electronic correlations. While local co…
Oxygen-vacancy driven electron localization and itinerancy in rutile-based TiO
Frank Lechermann, Wolfgang Heckel, Oleg Kristanovski +1
Oxygen-deficient TiO in the rutile structure as well as the TiO Magn{é}li phase is investigated within the charge self-consistent combination of density functional theo…