Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Anomalous photovoltaics in Janus MoSSe monolayers.
Nat Commun
January 2025
International Centre for Quantum Materials, Collaborative Innovation Centre of Quantum Matter, Peking University, Beijing, China.
The anomalous photovoltaic effect (APE) in polar crystals is a promising avenue for overcoming the energy conversion efficiency limits of conventional photoelectric devices utilizing p-n junction architectures. To facilitate effective photocarrier separation and enhance the APE, polar materials need to be thinned down to maximize the depolarization field. Here, we demonstrate Janus MoSSe monolayers (~0.
View Article and Find Full Text PDFSymmetry Breaking in Twisted Mixed-Dimensional Heterostructure Interfaces for Multifunctional Polarization-Sensitive Photodetection.
ACS Nano
January 2025
Center for High Pressure Science (CHiPS), State Key Laboratory of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao 066004, China.
Moiré superlattices, created by stacking different van der Waals materials at twist angles, have emerged as a versatile platform for exploring intriguing phenomena such as topological properties, superconductivity, the quantum anomalous Hall effect, and the unconventional Stark effect. Additionally, the formation of moiré superlattice potential can generate spontaneous symmetry breaking, leading to an anisotropic optical response and electronic transport behavior. Herein, we propose a two-step chemical vapor deposition (CVD) strategy for synthesizing WS/SbS moiré superlattices.
View Article and Find Full Text PDFSuppression of bubbles in unstable active liquids via fast evaporation.
Phys Rev E
November 2024
National Laboratory of Solid State Microstructures and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
A common intuition in thermodynamics is that bubbles can spontaneously grow in unstable liquids, which will be detrimental to a variety of physical and chemical processes, such as evaporation-induced self-assembly and electrocatalysis. Here, we show that this common intuition can be significantly reversed by demonstrating a suppression of bubbles in unstable active liquids induced by fast evaporation, which is in contrast to the bubble growth in passive liquids. Such anomalous bubble suppression can be attributed to an activity-induced inversion of pressure difference between bubbles and their surrounding liquid.
View Article and Find Full Text PDFGiant Domain Wall Anomalous Hall Effect in a Layered Antiferromagnet EuAl_{2}Si_{2}.
Phys Rev Lett
November 2024
School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
Generally, the dissipationless Hall effect in solids requires time-reversal symmetry breaking (TRSB), where TRSB induced by external magnetic field results in the ordinary Hall effect, while TRSB caused by spontaneous magnetization gives rise to the anomalous Hall effect (AHE) which scales with the net magnetization. The AHE is therefore not expected in antiferromagnets with vanishing small magnetization. However, large AHE was recently observed in certain antiferromagnets with noncollinear spin structure and nonvanishing Berry curvature.
View Article and Find Full Text PDFFractional Quantum Anomalous Hall Effect in Rhombohedral Multilayer Graphene in the Moiréless Limit.
Phys Rev Lett
November 2024
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.
Article Synopsis
- The standard model for fractional quantum anomalous Hall (FQAH) effect typically assumes a flat and isolated Chern band, but this study questions that view by focusing on pentalayer graphene aligned with hexagonal boron nitride.
- Through advanced calculations, researchers found that interaction effects produce a significant band gap, leading to stable FQAH states even without the moiré superlattice potential.
- The findings suggest that the QAH insulator at filling ν=1 behaves like an interaction-driven topological Wigner crystal, inviting further exploration of topology and FQAH in systems with low moiré potential.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!