The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

The first-principles band theory paradigm has been a key player not only in the process of
discovering new classes of topologically interesting materials, but also for identifying salient …

We review the dynamical mean-field theory of strongly correlated electron systems which is
based on a map** of lattice models onto quantum impurity models subject to a self …

In the light of the tremendous progress that has been made in raising the transition
temperature of the copper oxide superconductors (for a review, see ref.), it is natural to …

The B-site substituted perovskite oxides A 2 B′ B ″O 6 have in the recent decades gained
an increasing amount of interest due to their various interesting properties and possible …

Topological electronic flattened bands near or at the Fermi level are a promising route
towards unconventional superconductivity and correlated insulating states. However, the …

Describing all aspects of the physics of transition metal compounds, this book provides a
comprehensive overview of this unique and diverse class of solids. Beginning with the basic …

In narrow-band systems electrons can interact with each other via a short-range nonretarded
attractive potential. The origin of such an effective local attraction can be polaronic or it can …

Since the discovery of superconductivity above 30 K by Bednorz and Müller in the La copper
oxide system, the critical temperature has been raised to 90 K in Y Ba 2 Cu 3 O 7 and to 110 …

The detailed behavior of the phase transitions was mapped out for the series R NiO 3 as a
function of the rare earth (R). A sharp insulator-metal transition is observed, which depends …