Progress on the antiferromagnetic topological insulator MnBi2Te4

S Li, T Liu, C Liu, Y Wang, HZ Lu… - National Science …, 2024 - academic.oup.com
Topological materials, which feature robust surface and/or edge states, have now been a
research focus in condensed matter physics. They represent a new class of materials …

Axion optical induction of antiferromagnetic order

JX Qiu, C Tzschaschel, J Ahn, A Gao, H Li, XY Zhang… - Nature materials, 2023 - nature.com
Using circularly polarized light to control quantum matter is a highly intriguing topic in
physics, chemistry and biology. Previous studies have demonstrated helicity-dependent …

Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBi2Te4

Y Li, Y Wang, Z Lian, H Li, Z Gao, L Xu, H Wang… - Nature …, 2024 - nature.com
The van der Waals antiferromagnetic topological insulator MnBi2Te4 represents a promising
platform for exploring the layer-dependent magnetism and topological states of matter …

Anomalous Second Harmonic Generation from Atomically Thin MnBi2Te4

J Fonseca, GM Diederich, D Ovchinnikov, J Cai… - Nano Letters, 2022 - ACS Publications
MnBi2Te4 is a van der Waals topological insulator with intrinsic intralayer ferromagnetic
exchange and A-type antiferromagnetic interlayer coupling. Theoretically, it belongs to a …

Quantum geometry quadrupole-induced third-order nonlinear transport in antiferromagnetic topological insulator MnBi2Te4

H Li, C Zhang, C Zhou, C Ma, X Lei, Z Jin, H He… - Nature …, 2024 - nature.com
The study of quantum geometry effects in materials has been one of the most important
research directions in recent decades. The quantum geometry of a material is characterized …

Light-induced half-quantized Hall effect and axion insulator

F Qin, CH Lee, R Chen - Physical Review B, 2023 - APS
Motivated by the recent experimental realization of the half-quantized Hall effect phase in a
three-dimensional (3D) semimagnetic topological insulator [M. Mogi, Nat. Phys. 18, 390 …

Side-surface-mediated hybridization in axion insulators

R Chen, HP Sun, B Zhou - Physical Review B, 2023 - APS
The axion insulator is believed to host half-quantized chiral currents running antiparallelly
on its top and bottom surfaces. However, the experimental detection of the half quantization …

Half-quantized helical hinge currents in axion insulators

M Gong, H Liu, H Jiang, CZ Chen… - National Science …, 2023 - academic.oup.com
Fractional quantization can emerge in noncorrelated systems due to the parity anomaly,
while its condensed matter realization is a challenging problem. We propose that in axion …

Second harmonic generation induced by gate voltage oscillation in few layer MnBi2Te4

L Xu, Z Lian, Y Wang, X Hao, S Yang, Y Wang… - npj Quantum …, 2024 - nature.com
Nonlinear charge transport, such as nonreciprocal longitudinal resistance and nonlinear
Hall effect, has attracted considerable interest in probing the symmetries and topological …

Electronic structure, Curie temperature, and magnetic transport of a two-dimensional multiferroic heterostructure

ZW Zhang, YF Lang, HP Zhu, B Li, YQ Zhao, B Wei… - Physical Review …, 2024 - APS
The coupling of ferromagnetic and ferroelectric materials has sparked great interest in the
field of spintronics due to nonvolatile electrical magnetic control. In this work, we propose …