840 citations · 2.2k across the 20 of their papers we have counts for
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Direct observation of chiral edge current at zero magnetic field in odd-layer MnBiTe
Jinjiang Zhu, Yang Feng, Xiaodong Zhou +14
The chiral edge current is the boundary manifestation of the Chern number of a quantum anomalous Hall (QAH) insulator. Its direct observation is assumed to require well-quantized H…
Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBiTe
Yaoxin Li, Yongchao Wang, Zichen Lian +20
The van der Waals antiferromagnetic topological insulator MnBi2Te4 represents a promising platform for exploring the layer-dependent magnetism and topological states of matter. Rec…
Real-time observation of magnetization and magnon dynamics in a two-dimensional topological antiferromagnet MnBi2Te4
F. Michael Bartram, Meng Li, Liangyang Liu +9
Atomically thin van der Waals magnetic materials have not only provided a fertile playground to explore basic physics in the two-dimensional (2D) limit but also created vast opport…
Helical Luttinger liquid on the edge of a 2-dimensional topological antiferromagnet
Yang Feng, Jinjiang Zhu, Weiyan Lin +12
Boundary helical Luttinger liquid (HLL) with broken bulk time-reversal symmetry belongs to a unique topological class which may occur in antiferromagnets (AFM). Here, we search for…
Ultrafast coherent interlayer phonon dynamics in atomically thin layers of MnBi2Te4
F. Michael Bartram, Yu-Chen Leng, Yongchao Wang +10
The atomically thin MnBi2Te4 crystal is a novel magnetic topological insulator, exhibiting exotic quantum physics. Here we report a systematic investigation of ultrafast carrier dy…
Influences of the dissipative topological edge state on quantized transport in MnBi2Te4
Weiyan Lin, Yang Feng, Yongchao Wang +9
The beauty of quantum Hall (QH) effect is the metrological precision of Hall resistance quantization that originates from the topological edge states. Understanding the factors tha…
Gate-tunable magnetoresistance in six-septuple-layer MnBiTe
Yaoxin Li, Chang Liu, Yongchao Wang +4
The recently discovered antiferromagnetic topological insulator MnBiTe hosts a variety of exotic topological quantum phases such as the axion insulator and Chern insulator…
Magnetization-tuned topological quantum phase transition in MnBi2Te4 devices
Jun Ge, Yanzhao Liu, Pinyuan Wang +7
Recently, the intrinsic magnetic topological insulator MnBi2Te4 has attracted enormous research interest due to the great success in realizing exotic topological quantum states, su…
Direct visualization of edge state in even-layer MnBi2Te4 at zero magnetic field
Weiyan Lin, Yang Feng, Yongchao Wang +12
Being the first intrinsic antiferromagnetic(AFM) topological insulator(TI), MnBi2Te4 is argued to be a topological axion state in its even-layer form due to the antiparallel magnet…
Intertwined Topological and Magnetic Orders in Atomically Thin Chern Insulator MnBi2Te4
Dmitry Ovchinnikov, Xiong Huang, Zhong Lin +15
The interplay between band topology and magnetic order plays a key role in quantum states of matter. MnBi2Te4, a van der Waals magnet, has recently emerged as an exciting platform…
Magnetic-field-induced robust zero Hall plateau state in MnBiTe Chern insulator
Chang Liu, Yongchao Wang, Ming Yang +11
The intrinsic antiferromagnetic topological insulator MnBi2Te4 provides an ideal platform for exploring exotic topological quantum phenomena. Recently, the Chern insulator and axio…
High-Chern-Number and High-Temperature Quantum Hall Effect without Landau Levels
Jun Ge, Yanzhao Liu, Jiaheng Li +5
The quantum Hall effect (QHE) with quantized Hall resistance of h/νe2 starts the research on topological quantum states and lays the foundation of topology in physics. Afterwards,…
Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
Chang Liu, Yongchao Wang, Hao Li +7
The intricate interplay between nontrivial topology and magnetism in two-dimensional (2D) materials has led to the emergence of many novel phenomena and functionalities. An outstan…