The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Topological materials have become the focus of intense research in recent years, since they
exhibit fundamentally new physical phenomena with potential applications for novel devices …

In a magnetic topological insulator, nontrivial band topology combines with magnetic order
to produce exotic states of matter, such as quantum anomalous Hall (QAH) insulators and …

The importance of global band topology is unequivocally recognized in condensed matter
physics, and new states of matter, such as topological insulators, have been discovered …

The quantized version of the anomalous Hall effect has been predicted to occur in magnetic
topological insulators, but the experimental realization has been challenging. Here, we …

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

Ever since its discovery the notion of Berry phase has permeated through all branches of
physics. Over the past three decades it was gradually realized that the Berry phase of the …

The anomalous Hall effect (AHE) occurs in solids with broken time-reversal symmetry,
typically in a ferromagnetic phase, as a consequence of spin-orbit coupling. Experimental …

An intrinsic magnetic topological insulator (TI) is a stoichiometric magnetic compound
possessing both inherent magnetic order and topological electronic states. Such a material …

We show that the fundamental time-reversal invariant (TRI) insulator exists in 4+ 1
dimensions, where the effective-field theory is described by the (4+ 1)-dimensional Chern …