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

Topological electronic materials, such as topological insulators, are distinct from trivial
materials in the topology of their electronic band structures that lead to robust …

Abstract Recently, two-dimensional (2D) magnetic materials have attracted extensive
interest thanks to their potential application as spintronic devices. Albeit bulk magnetic …

The van der Waals compound, MnBi 2 Te 4, is the first intrinsic magnetic topological
insulator, providing a materials platform for exploring exotic quantum phenomena such as …

Introducing magnetism into topological insulators breaks time-reversal symmetry, and the
magnetic exchange interaction can open a gap in the otherwise gapless topological surface …

Many experiments observed a metallic behavior at zero magnetic fields (antiferromagnetic
phase, AFM) in MnBi 2 Te 4 thin film transport, which coincides with gapless surface states …

Using angle-resolved photoelectron spectroscopy (ARPES), we investigate the surface
electronic structure of the magnetic van der Waals compounds MnBi 4 Te 7 and MnBi 6 Te …

The fine control of magnetism and electronic structure in a magnetic topological insulator is
crucial in order to realize various novel magnetic topological states including axion …

Despite the rapid progress in understanding the first intrinsic magnetic topological insulator
MnBi 2 Te 4, its electronic structure remains a topic under debates. Here we perform a …

As the first intrinsic antiferromagnetic topological insulator, MnBi 2 Te 4 has provided a
material platform to realize various emergent phenomena arising from the interplay of …