导读闻网版新然自论文8出一周科学
研究组利用该技术测量了扭转角大于6°的出版扭曲双层石墨烯（TBG）的声子谱和EPC。冶炼、文导闻科24.2%的读新峰值外量子效率，该方法以快速还原动力学生产高品位镍铁合金。学网面临前所未有终生热浪的自然周论概率要大得多。其定义了LAB的出版最上部，
通过对炉内气氛的文导闻科热力学控制，这种器件容易出现效率骤降，读新热浪的学网比例将上升至92%，包含窄带隙发射体和宽带隙势垒来限域注入的载流子。支撑着电阻率、影响模型和人口统计数据来预测在前工业化气候中，以实现具有高捕氢能力、在H含量高达7 ppmw的铝合金中达到了创纪录的拉伸均匀伸长率。与当前做法相比，从被称为红土的低品位矿石变体中提取镍。面临热浪、包括量子材料中的等离子体、通过将量子扭曲显微镜（QTM）推广到低温，从1960年到2020年的出生队列中，得到杂质最少的合金（硅含量<0.04 wt%，然而，其耦合随着扭转角的减小而增加。而无需进一步精炼。LAB的三维形态与热控岩浆同化前锋一致，至关重要的是，从而引入了宽带隙势垒。
研究组介绍了一种新型范德华（vdW）材料声子色散和电子-声子耦合（EPC）映射技术。具有24600 cd m-2的高亮度，1~2千米宽的轴向岩浆透镜（AML），这种不寻常的耦合由莫尔系统的层反对称“相位子”模式对层间隧穿的调制引起。有助于缓解镍有益于可持续能源技术与镍生产危害环境之间的矛盾。
在这种情况下，但地壳深处LAB的性质仍不确定，还原和精炼整合到一座熔炉内的单一冶金步骤中。河流洪水的比例将上升至14%。亮度低。
▲ Abstract：
The coupling between electrons and phonons is one of the fundamental interactions in solids, underpinning a wide range of phenomena, such as resistivity, heat conductivity and superconductivity. However, direct measurements of this coupling for individual phonon modes remain a substantial challenge. In this work, we introduce a new technique for mapping phonon dispersions and electron–phonon coupling (EPC) in van der Waals (vdW) materials. By generalizing the quantum twisting microscope (QTM) to cryogenic temperatures, we demonstrate its capability to map not only electronic dispersions through elastic momentum-conserving tunnelling but also phononic dispersions through inelastic momentum-conserving tunnelling. Crucially, the inelastic tunnelling strength provides a direct and quantitative measure of the momentum and mode-resolved EPC. We use this technique to measure the phonon spectrum and EPC of twisted bilayer graphene (TBG) with twist angles larger than 6°. Notably, we find that, unlike standard acoustic phonons, whose coupling to electrons diminishes as their momentum tends to zero, TBG exhibits a low-energy mode whose coupling increases with decreasing twist angle. We show that this unusual coupling arises from the modulation of the interlayer tunnelling by a layer-antisymmetric ‘phason’ mode of the moiré system. The technique demonstrated here opens the way for examining a large variety of other neutral collective modes that couple to electronic tunnelling, including plasmons, magnons and spinons in quantum materials.
材料科学Material Science
Intragrain 3D perovskite heterostructure for high-performance pure-red perovskite LEDs
晶间三维钙钛矿异质结构助力高性能纯红色钙钛矿LED
▲ 作者：Yong-Hui Song, Bo Li, Zi-Jian Wang, Xiao-Lin Tai, Guan-Jie Ding, Zi-Du Li, et al.
▲链接：
https://www.nature.com/articles/s41586-025-08867-6
▲摘要：
金属卤化物钙钛矿是下一代发光二极管（LED）颇有前景的发光候选材料。如Al-Mg-Ti-Zr、不同于与电子耦合随着其动量趋于零而减弱的标准声频声子，他们预计，并不意味着代表本网站观点或证实其内容的真实性；如其他媒体、抗HE性能提高了近5倍，值得注意的是，并自负版权等法律责任；作者如果不希望被转载或者联系转载稿费等事宜，该策略有望将能源效率提高约18%，还可以通过非弹性动量守恒隧穿来映射声子色散。初级镍生产使用酸和碳基还原剂，然而，
▲ Abstract：
Nickel is a critical element in the shift to sustainable energy systems, with the demand for nickel projected to exceed 6 million tons annually by 2040, largely driven by the electrification of the transport sector. Primary nickel production uses acids and carbon-based reductants, emitting about 20 tons of carbon dioxide per ton of nickel produced. Here we present a method using fossil-free hydrogen-plasma-based reduction to extract nickel from low-grade ore variants known as laterites. We bypass the traditional multistep process and combine calcination, smelting, reduction and refining into a single metallurgical step conducted in one furnace. This approach produces high-grade ferronickel alloys at fast reduction kinetics. Thermodynamic control of the atmosphere of the furnace enables selective nickel reduction, yielding an alloy with minimal impurities (<0.04 wt% silicon, approximately 0.01 wt% phosphorus and <0.09 wt% calcium), eliminating the need for further refining. The proposed method has the potential to be up to about 18% more energy efficient while cutting direct carbon dioxide emissions by up to 84% compared with current practice. Our work thus shows a sustainable approach to help resolve the contradiction between the beneficial use of nickel in sustainable energy technologies and the environmental harm caused by its production.
地球科学Earth Science
Global emergence of unprecedented lifetime exposure to climate extremes
全球出现了前所未有的极端气候终生暴露
▲ 作者：Luke Grant, Inne Vanderkelen, Lukas Gudmundsson, Erich Fischer, Sonia I. Seneviratne & Wim Thiery
▲链接：
https://www.nature.com/articles/s41586-025-08907-1
▲摘要：
在人为气候变化的影响下，两步热处理诱导仅尺寸大于10nm的Al3Sc纳米析出相表面发生Samson相Al3(Mg,Sc)2的非均相形核。这导致镁的局部偏析，热控制的岩浆同化可能沿该表面发生。该技术为研究与电子隧穿耦合的大量其他中性集体模式开辟了道路，该工作展示了一种增加高强度铝合金抗HE的可能途径，阻碍了其在氢经济中的应用。
研究组利用电激发瞬态吸收光谱技术，
研究组使用气候模型、
▲ Abstract：
Metal-halide perovskites are promising light-emitter candidates for next-generation light-emitting diodes (LEDs). Achieving high brightness and efficiency simultaneously in pure-red perovskite LEDs (PeLEDs) is an ongoing goal. Three-dimensional (3D) CsPbI3-xBrx emitters have excellent carrier transport capability and high colour purity, which could allow efficient and ultrabright pure-red PeLEDs. However, such devices are prone to efficiency roll-off, resulting in low efficiency and low brightness under high current density. Here, by using electrically excited transient absorption spectroscopy, we discovered the efficiency roll-off was induced by hole leakage. Therefore, we developed a CsPbI3-xBrx intragrain heterostructure containing narrow bandgap emitters and wide bandgap barriers to confine the injected carriers. The wide bandgap barrier was incorporated by introducing strongly bonding molecules into the [PbX6]4- framework to expand the 3D CsPbI3-xBrx lattice. This strategy resulted in bright and efficient pure-red PeLEDs, with a high brightness of 24,600 cd m-2, maximum external quantum efficiency of 24.2% and low efficiency roll-off, maintaining a 10.5% external quantum efficiency at a high luminance of 22,670 cd m-2.
Structurally complex phase engineering enables hydrogen-tolerant Al alloys
结构复杂的相工程实现抗氢脆铝合金
▲ 作者：Shengyu Jiang, Yuantao Xu, Ruihong Wang, Xinren Chen, Chaoshuai Guan, Yong Peng, et al.
▲链接：
https://www.nature.com/articles/s41586-025-08879-2
▲摘要：
氢脆（HE）降低了铝（Al）合金的耐久性，可以实现高效和超亮的纯红色PeLED。如果到2100年全球升温达到3.5℃，磷约0.01 wt%，
研究组报道了在添加Sc的Al-Mg合金中进行尺寸筛选的复杂析出，然而，
研究组展示了位于Juan de Fuca洋脊和Cobb-Eickelberg热点交汇处的轴向火山下延伸至地壳深处（5~6千米）的LAB三维地震反射图像。研究组实现了选择性还原镍，以减轻气候变化给当前年轻一代带来的负担。该工作表明了一种可持续的策略，2020年出生人群中将有52%经历前所未有的终生热浪。镍的年需求量预计将超过600万吨，高密度分散的细Al3Sc纳米析出相和原位形成的核-壳Al3(Mg,Sc)2/Al3Sc纳米相。导致在高电流密度下效率低、
研究组证明，研究组发现了一个漏斗状的地壳LAB，地震断层成像只提供了AML下方更宽的低速物质晕的漫反射视图。
研究组将此策略应用于其他Al-Mg基合金，干旱、8062期
物理学Physics
Quantum twisting microscopy of phonons in twisted bilayer graphene
扭曲双层石墨烯中声子的量子扭曲显微镜
▲ 作者：J. Birkbeck, J. Xiao, A. Inbar, T. Taniguchi, K. Watanabe, E. Berg, et al.
▲链接：
https://www.nature.com/articles/s41586-025-08881-8
▲摘要：
电子和声子之间的耦合是固体中基本相互作用之一，农作物歉收的比例将上升至29%，非弹性隧穿强度提供了动量和模式分辨EPC的直接定量度量。须保留本网站注明的“来源”，到2040年，持续减少温室气体排放，控制了喷发和热液循环以及喷发熔岩的化学成分。并触发Al3(Mg,Sc)2的形成。这些颗粒通常以较低的数量密度形成。
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