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

Two-dimensional (2D) material research is rapidly evolving to broaden the spectrum of
emergent 2D systems. Here, we review recent advances in the theory, synthesis …

Can a generic magnetic insulator exhibit a Hall current? The quantum anomalous Hall effect
(QAHE) is one example of an insulating bulk carrying a quantized Hall conductivity while …

The quantum anomalous Hall effect (QAHE) was discovered a decade ago but is still not
utilized beyond a handful of research groups, due to numerous limitations such as extremely …

The quantum anomalous Hall effect refers to the quantization of the Hall effect in the
absence of an applied magnetic field. The quantum anomalous Hall effect is of topological …

Second‐order topological insulators (SOTIs) in 2D materials have attracted significant
research interest. Recent theoretical predictions suggest that SOTIs can be achievable in 2D …

Efforts to make the International System of Units (SI) more accessible have been growing
since the global redefinition of the SI in 2019. Presently, the ohm is defined through the …

A quantum anomalous Hall (QAH) insulator is characterized by quantized Hall and
vanishing longitudinal resistances at zero magnetic field that are protected against local …

Ideally, quantum anomalous Hall systems should display zero longitudinal resistance. Yet in
experimental quantum anomalous Hall systems elevated temperature can make the …

The quantum anomalous Hall effect in magnetic topological insulators has potential for use
in quantum resistance metrology applications. Electronic conductance is quantized to e 2/h …