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Transport measurement of fractional charges in topological models
Shu-guang Cheng, Yijia Wu, Hua Jiang +2
The static topological fractional charge (TFC) in condensed matter systems is related to the band topology and thus has potential applications in topological quantum computation. H…
Modified Generalized-Brillouin-Zone Theory with On-site Disorders
Hongfang Liu, Ming Lu, Zhi-Qiang Zhang +1
We study the characterization of the non-Hermitian skin effect (NHSE) in non-Hermitian systems with on-site disorder. We extend the application of generalized-Brillouin-zone (GBZ)…
Quantized charge-pumping in higher-order topological insulators
Bing-Lan Wu, Ai-Min Guo, Zhi-Qiang Zhang +1
We study the quantized charge pumping of higher-order topological insulators (HOTIs) with edge-corner correspondences based on the combination of the rotation of in-plane magnetic…
Dissipationless Layertronics in Axion Insulator
Shuai Li, Ming Gong, Shuguang Cheng +2
Surface electrons in axion insulators are endowed with a topological layer degree of freedom followed by exotic transport phenomena, e.g., the layer Hall effect [Gao et al., Nature…
Half-Quantized Helical Hinge Currents in Axion Insulators
Ming Gong, Haiwen Liu, Hua Jiang +2
We propose that half-quantized helical hinge currents manifest as the fingerprint of the axion insulator (AI). These helical hinge currents microscopically originate from the later…
Switchable and unswitchable bulk photovoltaic effect in two-dimensional interlayer-sliding ferroelectrics
Rui-Chun Xiao, Yang Gao, Hua Jiang +3
Spontaneous polarization and bulk photovoltaic effect (BPVE) are two concomitant physical properties in ferroelectric materials. The flipping of ferroelectric order usually accompa…