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 …

Topological spintronics and magnetoelectronics

QL He, TL Hughes, NP Armitage, Y Tokura, KL Wang - Nature materials, 2022‏ - nature.com
Topological electronic materials, such as topological insulators, are distinct from trivial
materials in the topology of their electronic band structures that lead to robust …

Local probe of bulk and edge states in a fractional Chern insulator

Z Ji, H Park, ME Barber, C Hu, K Watanabe… - Nature, 2024‏ - nature.com
The fractional quantum Hall effect is a key example of topological quantum many-body
phenomena, arising from the interplay between strong electron correlation, topological order …

Transport, magnetic and optical properties of Weyl materials

N Nagaosa, T Morimoto, Y Tokura - Nature Reviews Materials, 2020‏ - nature.com
Weyl fermions were originally proposed as massless Dirac fermions in relativistic quantum
field theory. In solids, Weyl fermions often appear when either time-reversal symmetry or …

Microwave impedance microscopy and its application to quantum materials

ME Barber, EY Ma, ZX Shen - Nature Reviews Physics, 2022‏ - nature.com
Materials in which quantum mechanical effects lead to novel properties on the macroscopic
scale are of interest both fundamentally and for applications. For such quantum materials …

Magnetic topological insulator heterostructures: A review

J Liu, T Hesjedal - Advanced Materials, 2023‏ - Wiley Online Library
Topological insulators (TIs) provide intriguing prospects for the future of spintronics due to
their large spin–orbit coupling and dissipationless, counter‐propagating conduction …

Evidence for one-dimensional chiral edge states in a magnetic Weyl semimetal Co3Sn2S2

S Howard, L Jiao, Z Wang, N Morali, R Batabyal… - Nature …, 2021‏ - nature.com
The physical realization of Chern insulators is of fundamental and practical interest, as they
are predicted to host the quantum anomalous Hall (QAH) effect and topologically protected …

Routes to realize the axion-insulator phase in MnBi2Te4 (Bi2Te3) n family

Y Zhao, Q Liu - Applied Physics Letters, 2021‏ - pubs.aip.org
Axion, first postulated as a hypothetical particle in high-energy physics, is now extended to
describe a novel topological magnetoelectric effect derived from the Chern–Simons theory …

Recent progress in proximity coupling of magnetism to topological insulators

S Bhattacharyya, G Akhgar, M Gebert… - Advanced …, 2021‏ - Wiley Online Library
Inducing long‐range magnetic order in 3D topological insulators can gap the Dirac‐like
metallic surface states, leading to exotic new phases such as the quantum anomalous Hall …

Confinement-induced chiral edge channel interaction in quantum anomalous Hall insulators

LJ Zhou, R Mei, YF Zhao, R Zhang, D Zhuo, ZJ Yan… - Physical review …, 2023‏ - APS
In quantum anomalous Hall (QAH) insulators, the interior is insulating but electrons can
travel with zero resistance along one-dimensional (1D) conducting paths known as chiral …