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 …

The quantum anomalous Hall effect is defined as a quantized Hall effect realized in a system
without an external magnetic field. The quantum anomalous Hall effect is a novel …

It is well established that the anomalous Hall effect displayed by a ferromagnet scales with
its magnetization. Therefore, an antiferromagnet that has no net magnetization should …

Topological phases with insulating bulk and gapless surface or edge modes have attracted
intensive attention because of their fundamental physics implications and potential …

There are a variety of nonlinear optical effects including higher harmonic generations,
photovoltaic effects, and nonlinear Kerr rotations. They are realized by strong light irradiation …

The quantum mechanical (Berry) phase of the electronic wavefunction plays a critical role in
the anomalous, and spin Hall effects,, including their quantized limits,,. While progress has …

There has been considerable interest in spin-orbit torques for the purpose of manipulating
the magnetization of ferromagnetic elements for spintronic technologies. Spin-orbit torques …

We generalize magnetoelectronic circuit theory to account for spin transfer to and from the
atomic lattice via interfacial spin-orbit coupling. This enables a proper treatment of spin …

We predict that a temperature gradient can induce a magnon-mediated spin Hall response
in an antiferromagnet with nontrivial magnon Berry curvature. We develop a linear response …

Spin-transfer torque magnetic memory (STT-MRAM) has gained significant research interest
due to its nonvolatility and zero standby leakage, near unlimited endurance, excellent …