Over the past decade, two-dimensional semiconductors (2DSCs) have aroused wide
interest due to their extraordinary electronic, magnetic, optical, mechanical, and thermal …

Topological phases with insulating bulk and gapless surface or edge modes have attracted
intensive attention because of their fundamental physics implications and potential …

Quantum spin Hall materials hold the promise of revolutionary devices with dissipationless
spin currents but have required cryogenic temperatures owing to small energy gaps. Here …

Abstract A two-dimensional (2D) Weyl semimetal, akin to a spinful variant of graphene,
represents a topological matter characterized by Weyl fermion-like quasiparticles in low …

Since graphene has been successfully exfoliated, two-dimensional (2D) materials constitute
a vibrant research field and open vast perspectives in high-performance applications …

Soon after the synthesis of two-dimensional (2D) ultrathin black phosphorus and fabrication
of field effect transistors thereof, theoretical studies have predicted that other group-VA …

We propose to implement tunable higher-order topological states in a heterojunction
consisting of a two-dimensional (2D) topological insulator and the recently discovered …

Two-dimensional (2D) materials exhibit a wide range of atomic structures, compositions, and
associated versatility of properties. Furthermore, for a given composition, a variety of …

Despite the rapid progress in the field of the quantum spin Hall (QSH) effect, most of the
QSH systems studied up to now are based on crystalline materials. Here we propose that …

As a newcomer to the family of two-dimensional (2D) material, 2D metals and alloys have
seen rapid development in recent years because of their unique physical and chemical …