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 …

Topological insulators are new states of quantum matter which cannot be adiabatically
connected to conventional insulators and semiconductors. They are characterized by a full …

Topological insulators represent a new quantum state of matter which is characterized by
peculiar edge or surface states that show up due to a topological character of the bulk wave …

We investigate novel phases that emerge from the interplay of electron correlations and
strong spin-orbit interactions. We focus on describing the topological semimetal, a three …

We discuss phenomena arising from the combined influence of electron correlation and spin-
orbit coupling (SOC), with an emphasis on emergent quantum phases and transitions in …

There has been much interest in pyrochlore iridates A 2 Ir 2 O 7 where both strong spin-
orbital coupling and strong correlation are present. A recent local density approximation …

Two gapped quantum ground states in the same phase are connected by an adiabatic
evolution which gives rise to a local unitary transformation that maps between the states. On …

Sr 2 IrO 4 has been suggested as a Mott insulator from a single J eff= 1/2 band, similar to the
cuprates. However, this picture is complicated by the measured large magnetic anisotropy …

Recently, topological insulator materials have been theoretically predicted and
experimentally observed in both 2D and 3D systems. We first review the basic models and …

While iridium-based perovskites have been identified as promising candidates for the
oxygen evolution reaction (OER) in proton exchange membrane (PEM) electrolyzer …