53 citations · 125 across the 10 of their papers we have counts for
10 papers
Ultrafast dynamics of wavelength-sensitive magnons in unconventional compensated semiconducting antiferromagnet
Hanshen Huang, Tao Qu, Yang Cheng +12
Antiferromagnet is a promising candidate for the next generation spintronic devices, benefiting from its ultrafast dynamics and spontaneous zero stray field. However, the understan…
Reentrant quantum anomalous Hall effect in molecular beam epitaxy-grown MnBi2Te4 thin films
Yuanzhao Li, Yunhe Bai, Yang Feng +16
In this study, we investigate intrinsic magnetic topological insulator MnBi2Te4 thin films grown by molecular beam epitaxy. We observe a reentrant quantum anomalous Hall effect whe…
Tunning the number of chiral edge channels in a fixed quantum anomalous Hall system
Peng Deng, Yulei Han, Peng Zhang +3
Quantum anomalous Hall (QAH) insulators exhibit chiral edge channels characterized by vanishing longitudinal conductance and quantized Hall conductance of Ce2/h, wherein the Chern…
Implementing Microwave Impedance Microscopy in a Dilution Refrigerator
Zhanzhi Jiang, Su Kong Chong, Peng Zhang +5
We report the implementation of a dilution-refrigerator-based scanning microwave impedance microscope (MIM) with a base temperature of ~ 100 mK. The vibration noise of our apparatu…
Structural tuning magnetism and topology in a magnetic topological insulator
Christopher Eckberg, Gang Qiu, Tao Qu +10
To date, the most widely-studied quantum anomalous Hall insulator (QAHI) platform is achieved by dilute doping of magnetic ions into thin films of the alloyed tetradymite topologic…
Anomalous Landau quantization in intrinsic magnetic topological insulators
Su Kong Chong, Chao Lei, Seng Huat Lee +4
The intrinsic magnetic topological insulators, Mn(Bi1-xSbx)2Te4, in their spin-aligned strong field configuration have been identified as a Weyl semimetal with single pair of Weyl…
Unidirectional Spin Hall Magnetoresistance in Antiferromagnetic Heterostructures
Yang Cheng, Junyu Tang, Justin J. Michel +4
Unidirectional spin Hall magnetoresistance (USMR) has been widely reported in the heavy metal / ferromagnet (HM/FM) bilayer systems. We observe the USMR in the Pt/α-Fe2O3 bilayers…
Nanomechanical Characterization of an Antiferromagnetic Topological Insulator
Shuwan Liu, Su Kong Chong, Dongwook Kim +7
The antiferromagnetic topological insulator MnBi2Te4 (MBT) exhibits an ideal platform to study exotic topological phenomena and magnetic properties. The transport signatures of mag…
Mesoscopic Transport of Quantum Anomalous Hall Effect in Sub-Micron Size Regime
Gang Qiu, Peng Zhang, Peng Deng +4
The quantum anomalous Hall (QAH) effect has been demonstrated in two-dimensional topological insulator systems incorporated with ferromagnetism. However, a comprehensive understand…
Distinguishing two-component anomalous Hall effect from topological Hall effect
Lixuan Tai, Bingqian Dai, Jie Li +14
In transport, the topological Hall effect (THE) presents itself as non-monotonic features (or humps and dips) in the Hall signal and is widely interpreted as a sign of chiral spin…