[HTML][HTML] Progress and prospects in the quantum anomalous Hall effect

H Chi, JS Moodera - APL Materials, 2022 - pubs.aip.org
The quantum anomalous Hall effect refers to the quantization of the Hall effect in the
absence of an applied magnetic field. The quantum anomalous Hall effect is of topological …

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 …

On the topological surface states of the intrinsic magnetic topological insulator Mn-Bi-Te family

Y Wang, XM Ma, Z Hao, Y Cai, H Rong… - National Science …, 2024 - academic.oup.com
We review recent progress in the electronic structure study of intrinsic magnetic topological
insulators (MnBi2Te4)·(Bi2Te3) n () family. Specifically, we focus on the ubiquitously (nearly) …

Spin-resolved topology and partial axion angles in three-dimensional insulators

KS Lin, G Palumbo, Z Guo, Y Hwang… - Nature …, 2024 - nature.com
Symmetry-protected topological crystalline insulators (TCIs) have primarily been
characterized by their gapless boundary states. However, in time-reversal-(T-) invariant …

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 …

Half-quantized Hall effect and power law decay of edge-current distribution

JY Zou, B Fu, HW Wang, ZA Hu, SQ Shen - Physical Review B, 2022 - APS
Half-quantized Hall conductance is characteristic of quantum systems with the parity
anomaly. Here, we investigate topological and transport properties of a class of parity …

Quantum anomalous semimetals

B Fu, JY Zou, ZA Hu, HW Wang, SQ Shen - npj Quantum Materials, 2022 - nature.com
The topological states of matter and topological materials have been attracting extensive
interests as one of the frontier topics in condensed matter physics and materials science …

Possible quantization and half-quantization in the anomalous Hall effect caused by in-plane magnetic field

S Sun, H Weng, X Dai - Physical Review B, 2022 - APS
In this paper we propose that quantized and nearly half-quantized intrinsic anomalous Hall
effect can be induced by in-plane external magnetic field through the Zeeman coupling in …

Direct visualization of edge state in even-layer MnBi2Te4 at zero magnetic field

W Lin, Y Feng, Y Wang, J Zhu, Z Lian, H Zhang… - Nature …, 2022 - nature.com
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 …

Quantum field theory anomalies in condensed matter physics

R Arouca, A Cappelli, H Hansson - SciPost Physics Lecture Notes, 2022 - scipost.org
We give a pedagogical introduction to quantum anomalies, how they are calculated using
various methods, and why they are important in condensed matter theory. We discuss axial …