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39 papers · 1 filter
Topological Surface Charge Detection via Terahertz Time-domain Spectroscopy
Tong Shen, Yiyang Xie, Yucheng Dai +4
The topological magnetoelectric effect (TME) is a condensed-matter realization of the four-dimensional quantum Hall effect (4D-QHE), manifesting as quantized surface charge accumul…
Non-volatile Multistate Magnetic Switching via Spin-orbit Torque and Intrinsic Anisotropy
Fei Ye, Chunzheng Wang, Xue Zhang +6
While current-induced bistate spin-orbit torque (SOT) switching has been well established, deterministic electrical control of multiple magnetic states remains a central challenge…
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 , serves as a condensed-matter…
Interaction-Driven Chern Insulator at Zero Electric Field in ABCB-Stacked Tetralayer Graphene
Yulu Ren, Yang Shen, Chengyang Xu +2
ABCB-stacked tetralayer graphene, with intrinsic spontaneous polarization, offers a unique platform to explore electron correlation effects, whose interplay with spin-orbit couplin…
Signatures of magnetism in zigzag graphene nanoribbon embedded in h-BN lattice
Chengxin Jiang, Hui Shan Wang, Chen Chen +18
Zigzag edges of graphene have long been predicted to exhibit magnetic electronic state near the Fermi level, which can cause spin-related phenomena and offer unique potentials for…
Observation of Quantized Charge Accumulation in a Quantum Anomalous Hall System
Yuanze Li, Jiahao Chen, Renfei Wang +6
The quantum anomalous Hall effect in magnetically doped topological insulators exhibits a quantized Hall conductance arising from the two-dimensional surface state…