Moiré photonics and optoelectronics
Moiré superlattices, the artificial quantum materials, have provided a wide range of
possibilities for the exploration of completely new physics and device architectures. In this …
possibilities for the exploration of completely new physics and device architectures. In this …
Light-induced emergent phenomena in 2D materials and topological materials
Light–matter interaction in 2D and topological materials provides a fascinating control knob
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …
Intelligent infrared sensing enabled by tunable moiré quantum geometry
Quantum geometric properties of Bloch wave functions in solids, that is, Berry curvature and
the quantum metric, are known to significantly influence the ground-and excited-state …
the quantum metric, are known to significantly influence the ground-and excited-state …
Quantum metric nonlinear Hall effect in a topological antiferromagnetic heterostructure
Quantum geometry in condensed-matter physics has two components: the real part quantum
metric and the imaginary part Berry curvature. Whereas the effects of Berry curvature have …
metric and the imaginary part Berry curvature. Whereas the effects of Berry curvature have …
Topological metamaterials
The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …
invariant, are global features that cannot change continuously but only through abrupt …
Berry curvature dipole senses topological transition in a moiré superlattice
Topological aspects of the electron wave function—including the Berry curvature and Chern
number—play a crucial role in determining the physical properties of materials. Although the …
number—play a crucial role in determining the physical properties of materials. Although the …
Photocurrent as a multiphysics diagnostic of quantum materials
The photoexcitation life cycle from incident photon (and creation of photoexcited electron–
hole pair) to ultimate extraction of electrical current is a complex multiphysics process …
hole pair) to ultimate extraction of electrical current is a complex multiphysics process …
Geometric deep optical sensing
Geometry, an ancient yet vibrant branch of mathematics, has important and far-reaching
impacts on various disciplines such as art, science, and engineering. Here, we introduce an …
impacts on various disciplines such as art, science, and engineering. Here, we introduce an …
Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe2
The zero‐magnetic‐field nonlinear Hall effect (NLHE) refers to the second‐order transverse
current induced by an applied alternating electric field; it indicates the topological properties …
current induced by an applied alternating electric field; it indicates the topological properties …
Bulk photovoltaic effect and high mobility in the polar 2D semiconductor SnP2Se6
The growth of layered 2D compounds is a key ingredient in finding new phenomena in
quantum materials, optoelectronics, and energy conversion. Here, we report SnP2Se6, a …
quantum materials, optoelectronics, and energy conversion. Here, we report SnP2Se6, a …