Colloquium: Quantum anomalous Hall effect

CZ Chang, CX Liu, AH MacDonald - Reviews of Modern Physics, 2023 - APS
The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Graphene and beyond: recent advances in two-dimensional materials synthesis, properties, and devices

Y Lei, T Zhang, YC Lin, T Granzier-Nakajima… - ACS Nanoscience …, 2022 - ACS Publications
Since the isolation of graphene in 2004, two-dimensional (2D) materials research has
rapidly evolved into an entire subdiscipline in the physical sciences with a wide range of …

Native point defects and their implications for the Dirac point gap at MnBi2Te4(0001)

M Garnica, MM Otrokov, PC Aguilar… - npj Quantum …, 2022 - nature.com
We study the surface crystalline and electronic structures of the antiferromagnetic
topological insulator MnBi2Te4 using scanning tunneling microscopy/spectroscopy (STM/S) …

Sample-dependent Dirac-point gap in and its response to applied surface charge: A combined photoemission and ab initio study

AM Shikin, DA Estyunin, NL Zaitsev, D Glazkova… - Physical Review B, 2021 - APS
Recently discovered intrinsic antiferromagnetic topological insulator Mn Bi 2 Te 4 presents
an exciting platform for realization of the quantum anomalous Hall effect and a number of …

Light-induced topological phase transition with tunable layer hall effect in axion antiferromagnets

C Zhou, J Zhou - Nano Letters, 2024 - ACS Publications
The intricate interplay between light and matter provides effective tools for manipulating
topological phenomena. Here, we theoretically propose and computationally show that …

Irremovable Mn-Bi Site Mixing in MnBi2Te4

X Wu, C Ruan, P Tang, F Kang, W Duan, J Li - Nano Letters, 2023 - ACS Publications
MnBi2Te4, an antiferromagnetic topological insulator, was theoretically predicted to have a
gapped surface state on its (111) surface. However, a much smaller gapped or even gapless …

Distinguishing surface and bulk electromagnetism via their dynamics in an intrinsic magnetic topological insulator

KD Nguyen, W Lee, J Dang, T Wu, G Berruto, C Yan… - Science …, 2024 - science.org
The indirect exchange interaction between local magnetic moments via surface electrons
has been long predicted to bolster the surface ferromagnetism in magnetic topological …

Routes for the topological surface state energy gap modulation in antiferromagnetic MnBi2Te4

AM Shikin, TP Makarova, AV Eryzhenkov… - Physica B: Condensed …, 2023 - Elsevier
We have analyzed different factors responsible for changes in the Dirac gap in MnBi 2 Te 4
and the routes that determine the possibilities of the purposeful gap modulation. It was …

Approaching a Minimal Topological Electronic Structure in Antiferromagnetic Topological Insulator MnBi2Te4 via Surface Modification

A Liang, C Chen, H Zheng, W **a, K Huang, L Wei… - Nano Letters, 2022 - ACS Publications
The topological electronic structure plays a central role in the nontrivial physical properties
in topological quantum materials. A minimal,“hydrogen-atom-like” topological electronic …

Large Exchange Coupling Between Localized Spins and Topological Bands in MnBi2Te4

H Padmanabhan, VA Stoica, PK Kim… - Advanced …, 2022 - Wiley Online Library
Magnetism in topological materials creates phases exhibiting quantized transport
phenomena with potential technological applications. The emergence of such phases relies …