Weichang Hao

Near-Ambient-Pressure X-ray Photoelectron Spectroscopy for Mechanistic Insights and Applications in Catalysis

Yunxi Jiang, Dandan Cui, Weichang Hao, Ming Yang et autres

Abstract With the rapid development of catalytic science, research has shifted from empirical exploration toward a mechanistic understanding of catalytic processes. In this context, probing surface chemical properties under realistic reaction conditions is essential for uncovering reaction mechanisms and guiding the development …

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Thin-Layer NbOCl 2 Flat-Band Semiconductor for Efficient PEC Photodetection

Yuehua Chen, Ruohang Xu, Yuxia Li, Dandan Cui et autres

Emerging two-dimensional semiconductor materials are of considerable interest for optoelectronic applications because of their unique charge-transport and photoresponse properties. Among them, NbOCl 2 demonstrates great potential for optoelectronic device applications due to its exceptional electrical transport properties and ultrafast optical response. In …

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Annealing of skyrmion lattice in van der Waals magnet via field modulation

Jingwei Zhang, Yilian Xi, Hanqing Shi, Hui Li et autres

In atomic solids, annealing transforms disordered structures into ordered crystals through thermal activation, whereas realizing a comparable process in quasiparticle lattices is highly desirable. Magnetic skyrmions are topological spin textures that can form ordered lattice and undergo equilibrium phase transitions, yet thermal …

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Breakthrough in seawater electrolysis achieved by stimulating oxygen evolution reaction via lattice oxygen mechanism

Ruxin Liu, Xuefei Lei, Weichang Hao, Wei Cai et autres

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Field manipulation of Weyl modes in an ideal Dirac semimetal

Jingyuan Zhong, Jianfeng Wang, Ming Yang, Jie Liu et autres

The emergent Weyl modes with the broken time-reversal symmetry or inversion symmetry provide large Berry curvature and chirality to carriers, offering the realistic platforms to explore topology of electrons in three-dimensional systems. However, the reversal transition between different types of Weyl modes …

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Potential-driven precise selectivity tuning for ammonia electrooxidation over NiCu-BDC metal organic framework

Jun Li, Haotian Tan, Jingjing Jia, Chao Wang et autres

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Emergence of diverse topological states in Ge-doped MnB i 2 T e 4

Zhijian Shi, Shengjie Xu, Jianfeng Wang, Yi Du et autres

As an ideal platform for studying interplays between symmetry, topology, and magnetism, the magnetic topological insulator (MTI) $\mathrm{MnB}{\mathrm{i}}_{2}\mathrm{T}{\mathrm{e}}_{4}$ has attracted extensive attention. However, its strong $n$-type intrinsic defects hinder the realizations of exotic phenomena. Stimulated by recent discoveries that Ge doping can …

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Topological Non‐Trivial Möbius Unknot Metamaterials with Robust Electromagnetic Properties

Zidong Zhang, Lili Yang, Wenjun Cai, Ziyuan Meng et autres

ABSTRACT Metamaterials can precisely control the propagation characteristics of electromagnetic waves to realize novel physical properties. The electromagnetic response of a metamaterial, however, is strictly dependent on the incident angle, as well as the polarization mode, which greatly limits the application of …

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Two-Dimensional Altermagnetism in Epitaxial CrSb Ultrathin Films

Keren Li, Yuzhong Hu, Yue Li, R. Z. Xu et autres

Altermagnets constitute an emerging class of collinear magnets that exhibit zero net magnetization yet host spin-split electronic bands arising from non-relativistic spin-space-group symmetries. Realization of altermagnetism in the two-dimensional (2D) limit remains an outstanding challenge because dimensional reduction suppresses kZ dispersion and …

Quantum Materials at Surfaces and Interfaces—Emergent Phenomena and Insights From the Special Section

Yi Du, Weichang Hao

The study of matter at the quantum scale continues to reshape the understanding of condensed matter physics and materials science. Over the past two decades, quantum phenomena in surfaces and interfaces at the atomic scale have emerged as a unifying theme that …

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Analog ReLU Activation Enabled by Van Hove Singularities in a Kagome Semiconductor Field‐Effect Transistor

Ziyuan Meng, Hang Xu, Xueli Geng, Zhaoying Ren et autres

Abstract With the growing demand for high‐performance computing in deep learning, energy‐efficient analog computing has emerged as a promising alternative to conventional energy‐intensive digital processing. A major obstacle in this field is the physical realization of activation functions, due to the lack …

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Controllable and continuous quantum phase transitions in intrinsic magnetic topological insulators

Shengjie Xu, Zhijian Shi, Ming Yang, Hang Xu et autres

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