Nano Letters最新文献_第9页

Revealing Intrinsic Anisotropy of Collective Magnetic Excitations in Twinned Crystals of a Kitaev–Heisenberg Quantum Magnet 揭示基塔耶夫-海森堡量子磁体孪晶中集体磁激发的本征各向异性

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-23 DOI: 10.1021/acs.nanolett.6c03792

Naipeng Zhang, Nikolai V. Simonov, Mykhaylo Ozerov, Sumedh Rathi, Nolan J. Heffner, Sara Huszar, Long Chen, Haidong Zhou, Guangxin Ni, Chaebin Kim, Martin Mourigal, Stephen M. Winter, Zhigang Jiang, Dmitry Smirnov

{"title":"Revealing Intrinsic Anisotropy of Collective Magnetic Excitations in Twinned Crystals of a Kitaev–Heisenberg Quantum Magnet","authors":"Naipeng Zhang, Nikolai V. Simonov, Mykhaylo Ozerov, Sumedh Rathi, Nolan J. Heffner, Sara Huszar, Long Chen, Haidong Zhou, Guangxin Ni, Chaebin Kim, Martin Mourigal, Stephen M. Winter, Zhigang Jiang, Dmitry Smirnov","doi":"10.1021/acs.nanolett.6c03792","DOIUrl":"10.1021/acs.nanolett.6c03792","url":null,"abstract":"Quantum magnets withcompeting interactions often emerge from delicatebalances among microscopic parameters, making it essential to disentanglethe intrinsic spin dynamics from extrinsic disorder effects. Herewe introduce a multimodal optical approach combining infrared anddomain-resolved micro-Raman spectroscopies at high magnetic fieldsto reconstruct the intrinsic magnetic excitation spectrum of twinnedcrystals of the Kitaev–Heisenberg antiferromagnet Na3Co2SbO6. Far-infrared spectroscopy revealsmultiple field-tunable magnetic excitations, but the intrinsic responseis obscured by replica features arising from twin domains. By correlatingmagneto-infrared and domain-resolved Raman spectra, we isolate thesingle-domain magnon response and uncover a pronounced 2-fold in-planemagnon anisotropy. This anisotropy far exceeds that expected fromthe measured in-plane g factor anisotropy and isinstead dominated by anisotropic bond-dependent exchange interactions.By unifying high-field, high-resolution, and spatially selective opticalprobes, our work establishes a broadly applicable framework for revealingintrinsic spin dynamics and constraining the spin Hamiltonian in multidomainquantum magnets.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"15047–15053"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149241859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering a Dynamic Alloy–Fluoride Interface via a Co-Placement Gas-Phase Strategy for Stable Lithium Metal Anodes 通过共放置气相策略设计稳定锂金属阳极的动态合金-氟化物界面

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-23 DOI: 10.1021/acs.nanolett.6c03756

Siyi Hu, Saisai Li, Jiawen Xiao, Changbo Yu, Ning Li, Jidong Cao, Hao Luo, Dawei Zhang

{"title":"Engineering a Dynamic Alloy–Fluoride Interface via a Co-Placement Gas-Phase Strategy for Stable Lithium Metal Anodes","authors":"Siyi Hu, Saisai Li, Jiawen Xiao, Changbo Yu, Ning Li, Jidong Cao, Hao Luo, Dawei Zhang","doi":"10.1021/acs.nanolett.6c03756","DOIUrl":"10.1021/acs.nanolett.6c03756","url":null,"abstract":"Lithium metal batteries (LMBs) hold great promise fornext-generationhigh-energy-density energy storage systems, but suffer from unevenLi nucleation and unstable interfaces. Here, a scalable coplacementgas-phase reaction strategy is developed to construct an adaptivealloy–fluoride interface on nickel mesh current collectors,enabling one-step in-situ formation of a uniform Ni3Sb/NiF2 layer. The lithiophilic Ni3Sb alloy effectivelylowers the lithium nucleation barrier and guides uniform lithium deposition.Upon cycling, NiF2 is transformed into a LiF-rich interphase,which stabilizes the electrode/electrolyte interface and homogenizesLi+ flux. The combined interface enables durable and uniformLi plating/stripping under long-term cycling. Consequently, the Ni3Sb/NiF2-modified anode achieves stable cyclingfor over 2600 h in symmetric cells and delivers 83.1% capacity retentionafter 240 cycles in LiFePO4 full cells with a high arealcapacity of 10 mAh cm–2. This work provides a facileand scalable strategy for engineering multifunctional interfaces towardpractical LMBs.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"15002–15009"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149241811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ring Sliding-Bond Scission Interplay Affects Toughening in Mechanically Interlocked Networks 环滑键断裂相互作用影响机械互锁网络的增韧

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-11-04 DOI: 10.1021/acs.nanolett.6c03911

Xiangrui Zheng,Zhuozheng Yu,Guoquan Liu,Xuzhou Yan,Yang Wang

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Tailoring Plasmon-induced Hot Carriers in 2D Ti3C2Tx MXene via Surface Terminations 二维Ti3C2Tx MXene中等离子体诱导热载流子的表面修饰

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-11-04 DOI: 10.1021/acs.nanolett.6c03925

Na Zhang,Bin Wang

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Toward Nanoscale Chemical Clarity: THz-Pulsed Atom Probe Tomography for Hydrated Biological Materials 迈向纳米级化学清晰度：水合生物材料的太赫兹脉冲原子探针断层扫描

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-11-04 DOI: 10.1021/acs.nanolett.6c03708

Florant Exertier,Laurence Chevalier,Simona Moldovan,Leo Guiramand,Matteo De Tullio,Marc Ropitaux,Jonathan Houard,Linda Barbieri,Davide Prosperi,Ammar Hideur,Angela Vella

{"title":"Toward Nanoscale Chemical Clarity: THz-Pulsed Atom Probe Tomography for Hydrated Biological Materials","authors":"Florant Exertier,Laurence Chevalier,Simona Moldovan,Leo Guiramand,Matteo De Tullio,Marc Ropitaux,Jonathan Houard,Linda Barbieri,Davide Prosperi,Ammar Hideur,Angela Vella","doi":"10.1021/acs.nanolett.6c03708","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c03708","url":null,"abstract":"Chemically resolved analysis of fragile biomolecular systems remains challenging because nanoscale spatial information must be obtained without compromising the mass-spectral clarity. Ferritin serves as an effective nanoscale model system featuring an organic protein shell surrounding an Fe-rich mineral core. Here, ferritin-containing hydrated specimens were prepared using graphene encapsulation and analyzed by THz-pulsed atom probe tomography. Compared with conventional laser-pulsing conditions, THz excitation improved peak definition and reduced spectral background, enabling detection of Fe-containing ions and isolation of an Fe-rich cluster consistent with the ferritin core. Although molecular overlaps and low ion counts still limit unambiguous peak assignment, isotopic, spatial, and signal-quality analyses support the identification of an Fe-rich region within an organic environment with further improvements expected at increased electric field strength. These results demonstrate that terahertz-pulsed atom probe tomography substantially improves the chemical readability of hydrated biological materials, opening new perspectives for their nanoscale studies.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"1 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149359313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gigahertz-Clocked Generation of Highly Indistinguishable Photons at C-Band Wavelengths 以千兆赫为时钟的c波段高度不可分辨光子的产生

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-11-04 DOI: 10.1021/acs.nanolett.6c01800

Robert Behrends,Lucas Rickert,Nils D. Kewitz,Martin von Helversen,Pratim K. Saha,Mareike Schmitz,Jochen Kaupp,Yorick Reum,Tobias Huber-Loyola,Sven Höfling,Andreas Pfenning,Tobias Heindel

引用次数: 0

Squaring the Hexagon: Multiply Twinned Plasmonic Magnesium Nanocubes 六边形的平方：倍增双等离子体镁纳米立方体

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-19 DOI: 10.1021/acs.nanolett.6c04201

Christina Boukouvala, Andrey Ten, Vladimir Lomonosov, Emilie Ringe

{"title":"Squaring the Hexagon: Multiply Twinned Plasmonic Magnesium Nanocubes","authors":"Christina Boukouvala, Andrey Ten, Vladimir Lomonosov, Emilie Ringe","doi":"10.1021/acs.nanolett.6c04201","DOIUrl":"10.1021/acs.nanolett.6c04201","url":null,"abstract":"Magnesium, a promising alternative for sustainable nanophotonics,crystallizes in a hexagonal close-packed (HCP) system, unlike theface-centered cubic (FCC) structures of gold, silver, copper, andaluminum. We report the high-yield colloidal synthesis of an unexpectedshape in an HCP system: cubes. Nanocubes with narrow size distributionswere produced from colloidal reduction of a magnesium precursor inthe presence of a sodium salt nucleating agent. Electron microscopyand diffraction reveal multiple twinning leading to the formationof six single-crystal units within the nanocubes. A self-limiting,sub-10 nm passivating oxide layer protects the metallic core againstfurther oxidation in air and organic solvents. Strong, multimode plasmonicresponses were observed using bulk extinction spectroscopy, single-particlescattering correlated with electron microscopy, and electron energyloss spectroscopy; experimental results were corroborated by numericalsimulations. These findings expand the crystallographic boundariesof non-FCC plasmonics and establish magnesium nanocubes as versatilebuilding blocks for nanophotonic applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"15140–15145"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PtyRANNOSAUR: Ptychography with Robust Artificial Neural Networks Optimized for Subangstrom Accuracy and Ultrafast Reconstruction ptyrannosaurus：基于亚埃精度和超快速重建的鲁棒人工神经网络的ptyography

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-22 DOI: 10.1021/acs.nanolett.6c03513

Kieran Loehr, Rahim Raja, Xiaochuan Ding, Jeffrey Huang, Gillian Nolan, Sang hyun Bae, Bryan K. Clark, Pinshane Y. Huang

{"title":"PtyRANNOSAUR: Ptychography with Robust Artificial Neural Networks Optimized for Subangstrom Accuracy and Ultrafast Reconstruction","authors":"Kieran Loehr, Rahim Raja, Xiaochuan Ding, Jeffrey Huang, Gillian Nolan, Sang hyun Bae, Bryan K. Clark, Pinshane Y. Huang","doi":"10.1021/acs.nanolett.6c03513","DOIUrl":"10.1021/acs.nanolett.6c03513","url":null,"abstract":"We present PtyRANNOSAUR, a data-driven neural networkapproachthat reconstructs atomic-resolution electron ptychography data inseconds, 100–1000 times faster than iterative methods. PtyRANNOSAURuses convolutional autoencoders to map 4D scanning transmission electronmicroscopy data to 2D phase images. Each model is trained on a largedatabase of crystal structures and is tailored for a range of experimentalparameters, such as accelerating voltage, convergence angle, defocus,and sample thickness. This approach yields high-quality reconstructionswithout requiring any fine-tuning of hyperparameters, significantlyincreasing the accessibility and usability of electron ptychography.In addition, the code handles spatial partial coherence, multiplescattering, and scan position errors, which are critical for the highest-qualityelectron ptychography reconstructions but have not been availablewithout hours-long computations. By testing PtyRANNOSAUR on experimentaland simulated data, we show that the neural networks accurately reconstructatomic structures on a broad range of systems of materials and achievehigh spatial resolutions of <0.5 Å, comparable to the bestiterative reconstructions of the same data. These advances enablelive, easy-to-use, state-of-the-art electron ptychography reconstructions.These features make it possible to conduct hundreds of electron ptychographyreconstructions in minutes and should unlock new operational modesfor nanocharacterization, such as in situ and high-throughputelectron ptychography.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"14949–14958"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149230223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrostatic Remodeling of the Plasma Membrane Enables Caveolae-Mediated ZIF8 Delivery for Bone Regeneration 质膜的静电重塑使小泡介导的ZIF8递送用于骨再生

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-22 DOI: 10.1021/acs.nanolett.6c03393

Shuting Gao, Yayuan Zheng, Zhihao Dou, Xiupei Yin, Yumin Wang, Jian Su, Keyu Tang, Qiaozhen Zhou, Kangli Jiao, Baoping Zhang, Ziyan Nie, Kailiang Zhang

{"title":"Electrostatic Remodeling of the Plasma Membrane Enables Caveolae-Mediated ZIF8 Delivery for Bone Regeneration","authors":"Shuting Gao, Yayuan Zheng, Zhihao Dou, Xiupei Yin, Yumin Wang, Jian Su, Keyu Tang, Qiaozhen Zhou, Kangli Jiao, Baoping Zhang, Ziyan Nie, Kailiang Zhang","doi":"10.1021/acs.nanolett.6c03393","DOIUrl":"10.1021/acs.nanolett.6c03393","url":null,"abstract":"Metal–organic frameworks offer powerful platformsfor intracellulardelivery and tissue regeneration, yet their membrane-level interactionsare poorly defined. Here, we show that cationic zeolitic imidazolateframework-8 (ZIF8) remodels the electrostatic landscape of the anionicplasma membrane, triggering caveolae-dependent endocytosis and promotingthe intracellular delivery for bone regeneration. ζ-potentialanalysis and Kelvin probe force microscopy demonstrated that ZIF8rapidly increased membrane surface electrostatics and induced localizedelectrostatic polarization at the nanobio interface. Simulations andadsorption kinetics revealed rapid saturation and a strong pH dependence,supporting a charge-dominated adsorption mechanism. Transmission electronmicroscopy captured sequential uptake events, including caveolae formation,membrane invagination, and lysosomal trafficking. Transcriptomicsfurther identified CAV2-associated endocytosis and mechanosensitivefluid shear-stress pathways as key contributors. On the basis of thismechanism, we constructed an OGP-loaded ZIF8 coating on polyethyleneimine-functionalizedtitanium implants, enabling intracellular peptide delivery, partiallysosomal escape, enhanced osteogenesis, antioxidant and anti-inflammatoryresponses, and improved osseointegration in rat bone defect models.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"14939–14948"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149230237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stacking-Order-Dependent Electronic Properties of MoTe2/WSe2 Moiré Bilayers MoTe2/WSe2 moirir双层层的堆叠序相关电子性质

IF 9.1 1区材料科学

Nano Letters Pub Date : 2026-11-04 Epub Date: 2026-10-26 DOI: 10.1021/acs.nanolett.6c02425

Zhongdong Han, Wenjin Zhao, Eegene Clara Chung, Chia-Hao Lee, Zui Tao, Zhengchao Xia, Yichi Zhang, Yiyu Xia, Jekwan Lee, Bowen Shen, Ariana Ray, Yu-Tsun Shao, Tingxin Li, Shengwei Jiang, Yihang Zeng, Kenji Watanabe, Takashi Taniguchi, David A. Muller, Kin Fai Mak, Jie Shan

{"title":"Stacking-Order-Dependent Electronic Properties of MoTe2/WSe2 Moiré Bilayers","authors":"Zhongdong Han, Wenjin Zhao, Eegene Clara Chung, Chia-Hao Lee, Zui Tao, Zhengchao Xia, Yichi Zhang, Yiyu Xia, Jekwan Lee, Bowen Shen, Ariana Ray, Yu-Tsun Shao, Tingxin Li, Shengwei Jiang, Yihang Zeng, Kenji Watanabe, Takashi Taniguchi, David A. Muller, Kin Fai Mak, Jie Shan","doi":"10.1021/acs.nanolett.6c02425","DOIUrl":"10.1021/acs.nanolett.6c02425","url":null,"abstract":"Transition metaldichalcogenide (TMD) moiré bilayers haverealized a wide range of strongly correlated and topological phenomena.The physics in these materials is often sensitive to the interlayerstacking order. Polarization-resolved optical second harmonic generation(SHG) is the most used technique for stacking order characterizationbut unverified for most heterobilayers. Here we calibrate the opticalSHG for angle-aligned MoTe2/WSe2 bilayers bythe scanning transmission electron microscopy (STEM). We directlycompare the transport and magnetic properties and the electronic phasediagram for two distinct stacking orders. With the calibrated stackingorder assignment, we clarify the interpretation of earlier results,including the nature of the Chern insulator, mechanism of an electric-field-tunedmetal–insulator transition at half band filling, and the Kondolattice physics. Our work provides a consistent picture of the relationbetween the stacking order and the electronic properties of MoTe2/WSe2 moiré bilayers.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 43","pages":"14829–14836"},"PeriodicalIF":9.1,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149248749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0