The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

A conventional topological insulator (TI) has gapped bulk states but gapless edge states.
The emergence of the gapless edge states is dictated by the bulk topological invariant of the …

Topological materials discovery has evolved at a rapid pace over the past 15 years following
the identification of the first nonmagnetic topological insulators (TIs), topological crystalline …

Based on first-principles calculations and symmetry analysis, we propose that EuIn 2 As 2 is
a long-awaited axion insulator with antiferromagnetic (AFM) long-range order …

We propose MnBi 2 n Te 3 n+ 1 as a magnetically tunable platform for realizing various
symmetry-protected higher-order topology. Its canted antiferromagnetic phase can host …

Abstract 2D second‐order topological insulators (SOTIs) have sparked significant interest,
but currently, the proposed realistic 2D materials for SOTIs are limited to nonmagnetic …

A second-order topological insulator (SOTI) in d spatial dimensions features topologically
protected gapless states at its (d-2)-dimensional boundary at the intersection of two crystal …

We study the bulk-boundary correspondence for topological crystalline phases, where the
crystalline symmetry is an order-two (anti) symmetry, unitary or antiunitary. We obtain a …

Topological insulators (TIs) provide intriguing prospects for the future of spintronics due to
their large spin–orbit coupling and dissipationless, counter‐propagating conduction …

Real topological phases featuring real Chern numbers and second-order boundary modes
have been a focus of current research, but finding their material realization remains a …