🔬 physics

Interference-Enhanced Large Electron--Phonon Coupling from Raman-active Breathing Modes in Moiré Semiconductors

By combining filling-dependent Raman spectroscopy with machine-learning first-principles calculations, this study reveals that an interference selection rule in moiré semiconductors selectively enhances electron--phonon coupling through specific breathing modes, suggesting a substantial phonon contribution to the superconductivity observed in large-angle twisted WSe2_2 and MoTe2_2.

Yang Zhang, Ning Mao, Shaozheng Wang, Xumin Chang, Kenji Watanabe, Takashi Taniguchi, Cheng Xu, Claudia Felser, Shengwei (…)2026-08-21
🔬 physics

Pre-corrosion induced fatigue damage localization and failure in 2195-T8 Al-Li alloy laser-welded joints

This study demonstrates that pre-corrosion in simulated propellant-derived acidic environments accelerates fatigue failure in 2195-T8 Al-Li alloy laser-welded joints by coupling weld-induced softening with electrochemical activation, which shifts crack initiation to corrosion defects and promotes rapid damage coalescence along weakened bands.

Xinzhi Yang, Gan Tian, Dejun Liu, Yongjie Cheng, Hongsheng Liu, Biyun Ren2026-08-21
🔬 physics

Amorphous High-κ Dielectrics for Top-Gate Integration in 2D Semiconductor Transistors

This paper presents a room-temperature fabrication strategy combining magnetron sputtering and van der Waals transfer to integrate damage-free amorphous high-κ dielectrics onto 2D semiconductors, enabling top-gate MoS2 transistors with superior electrical performance, including a near-Boltzmann-limit subthreshold swing and high on/off ratios.

Jinbao Jiang, Yuhang Wang, Chengmiao Liu, Yuting He, Jiangwei Zhang, Biyuan Zheng, Feng Xiong, Hansheng Li, Susu Qiu, Ch (…)2026-08-21
🔬 physics

Interface-Specific In Situ Photoluminescence Resolves Depth-Dependent Crystallization in Solution-Processed Metal Halide Perovskites

This study utilizes an interface-specific in situ photoluminescence platform to reveal vertical crystallization heterogeneity in solution-processed metal halide perovskites, demonstrating that suppressing buried-interface nucleation is essential for achieving unidirectional crystal growth and high-quality thin films.

Sai Wing Tsang, Ziyao YUE, Yuanhang CHENG, Yunfan WANG2026-08-21
🔬 physics

Quasi-One-Dimensional Sb2(S,Se)3 Self-Powered Photodetector for Diamond Fluorescence Magnetometry

This study demonstrates that buried-interface engineering in quasi-one-dimensional Sb₂(S,Se)₃ heterostructures enables high-performance self-powered photodetectors that significantly enhance the magnetic-field sensitivity and measurement precision of diamond nitrogen-vacancy fluorescence magnetometry systems compared to commercial silicon alternatives.

Xu Wu, Zhanpeng Zhang, Jianpeng Li, Yanjie Liu, Xingjia Ren, Jiabin Dong, Hao Wang, Zijun Zhang, Qianqian Gao, Yuxuan Lu (…)2026-08-21
🔬 physics

Identifiability and Uncertainty Bounds for Lennard–Jones Parameters from Dilute-Gas Transport: A Computational Chapman–Enskog Study

This study establishes an analytical and computational framework demonstrating that Lennard–Jones parameters for dilute-gas viscosity are only locally identifiable when derived from widely spaced temperature data, revealing that high-temperature-only designs lead to rank deficiency and significant uncertainty amplification while providing practical guidelines for optimal experimental temperature selection.

Connor Noble2026-08-21