Topological Surface Charge Detection via Active Capacitive Compensation: A Pathway to the 4D Quantum Hall Effect

Yuanze Li, Renfei Wang, Yifan Zhang +6

The topological magnetoelectric effect (TME) in three-dimensional topological insulators (TIs), described by $\hat{I}”P=\frac{e^2}{2h}{N}_{\mathrm{Ch}}^{(2)}\hat{I}”B$, serves as a condensed-matt…