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Conjugated Polymer-Driven Compact Crystal Packing and Efficient Charge Transport in Perovskite Quantum Dot Solar Cells (Small 39/2025) 钙钛矿量子点太阳能电池中共轭聚合物驱动的紧凑晶体封装和高效电荷输运（Small 39/2025）
IF 12.1 2区 材料科学
Small Pub Date : 2025-10-02 DOI: 10.1002/smll.70596
Tae Oh Yoon, Shabaz Alam, Dohun Baek, Dongwoon Lee, Hyemi Na, Jeongbeom Cha, Haedam Jin, Myeoungwon Lee, Meng Qian Li, Seoju Yang, Sanghun Han, Gayoung Seo, Jongmin Choi, Jaeyoung Jang, Jaewon Lee, Min Kim
{"title":"Conjugated Polymer-Driven Compact Crystal Packing and Efficient Charge Transport in Perovskite Quantum Dot Solar Cells (Small 39/2025)","authors":"Tae Oh Yoon,&nbsp;Shabaz Alam,&nbsp;Dohun Baek,&nbsp;Dongwoon Lee,&nbsp;Hyemi Na,&nbsp;Jeongbeom Cha,&nbsp;Haedam Jin,&nbsp;Myeoungwon Lee,&nbsp;Meng Qian Li,&nbsp;Seoju Yang,&nbsp;Sanghun Han,&nbsp;Gayoung Seo,&nbsp;Jongmin Choi,&nbsp;Jaeyoung Jang,&nbsp;Jaewon Lee,&nbsp;Min Kim","doi":"10.1002/smll.70596","DOIUrl":"https://doi.org/10.1002/smll.70596","url":null,"abstract":"<p><b>Perovskite Quantum Dot Solar Cells</b></p><p>In article number 2504757, Jaeyoung Jang, Jaewon Lee, Min Kim, and co-workers introduce a conjugated polymer ligand approach to improve the performance and stability of perovskite quantum dot solar cells. Featuring ethylene glycol side chains, the polymers facilitate ordered nanocrystal packing and efficient charge transport through π–π interactions, while simultaneously reducing surface defects and enhancing structural integrity under ambient conditions.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 39","pages":""},"PeriodicalIF":12.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.70596","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Supramolecular Assembly and Interfacial Hydration of Tandem Repeat Dipeptides on 2D Nanomaterials: Insights From 3D-AFM Measurements and MD Simulations (Small 39/2025) 二维纳米材料上串联重复二肽的超分子组装和界面水合作用：来自3D-AFM测量和MD模拟的见解（Small 39/2025）
IF 12.1 2区 材料科学
Small Pub Date : 2025-10-02 DOI: 10.1002/smll.70299
Ayhan Yurtsever, Fabio Priante, Linhao Sun, Marie Sugiyama, Kazuki Miyata, Keisuke Miyazawa, Sanhanut Kesornsit, Katsuhiro Maeda, Adam S. Foster, Yuhei Hayamizu, Mehmet Sarikaya, Takeshi Fukuma
{"title":"Supramolecular Assembly and Interfacial Hydration of Tandem Repeat Dipeptides on 2D Nanomaterials: Insights From 3D-AFM Measurements and MD Simulations (Small 39/2025)","authors":"Ayhan Yurtsever,&nbsp;Fabio Priante,&nbsp;Linhao Sun,&nbsp;Marie Sugiyama,&nbsp;Kazuki Miyata,&nbsp;Keisuke Miyazawa,&nbsp;Sanhanut Kesornsit,&nbsp;Katsuhiro Maeda,&nbsp;Adam S. Foster,&nbsp;Yuhei Hayamizu,&nbsp;Mehmet Sarikaya,&nbsp;Takeshi Fukuma","doi":"10.1002/smll.70299","DOIUrl":"https://doi.org/10.1002/smll.70299","url":null,"abstract":"<p><b>Bionanomaterials</b></p><p>In article number 2501785, Ayhan Yurtsever, Linhao Sun, Yuhei Hayamizu, Takeshi Fukuma, and co-workers investigate Tyr-His (YH) dipeptide tandem repeats assembled on cleaved graphite and MoS<sub>2</sub> substrates. The study reveals how 3D hydration shells govern peptide nanoarchitecture assembly, with molecular visualization showing peptides adopt fully extended, linear conformations aligned with specific crystallographic orientations. The lengths of assembled peptides match their unfolded states, including hydration layers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 39","pages":""},"PeriodicalIF":12.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.70299","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-Step Laser-Induced Oxidation and Doping for Tailored p-Type Conversion of Al-Doped TiO2 (Small 39/2025) 一步激光诱导氧化和掺杂al掺杂TiO2定制p型转化（Small 39/2025）
IF 12.1 2区 材料科学
Small Pub Date : 2025-10-02 DOI: 10.1002/smll.70300
Gyuwon Yang, Junil Kim, Byeongmoon Lee, Jae Eun Jang, Hyuk-Jun Kwon
{"title":"One-Step Laser-Induced Oxidation and Doping for Tailored p-Type Conversion of Al-Doped TiO2 (Small 39/2025)","authors":"Gyuwon Yang,&nbsp;Junil Kim,&nbsp;Byeongmoon Lee,&nbsp;Jae Eun Jang,&nbsp;Hyuk-Jun Kwon","doi":"10.1002/smll.70300","DOIUrl":"https://doi.org/10.1002/smll.70300","url":null,"abstract":"<p><b>Metal Oxide Semiconductors</b></p><p>A laser-assisted oxidation and doping strategy enables one-step formation of Al-doped TiO<sub>2</sub>, achieving p-type conductivity through selective Al diffusion above the threshold laser power. This method overcomes the intrinsic n-type nature of TiO<sub>2</sub>, offering a CMOS-compatible route for type conversion. The approach provides precise spatial control, enhanced hole transport, and scalability for next-generation oxide electronics and 3D integration. More in article number 2502139, Hyuk-Jun Kwon and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 39","pages":""},"PeriodicalIF":12.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.70300","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Halide Perovskites for Supercapacitors and Photosupercapacitors: Recent Developments and Future Perspectives (Small 39/2025) 卤化物钙钛矿用于超级电容器和光超级电容器：最新发展和未来展望（Small 39/2025）
IF 12.1 2区 材料科学
Small Pub Date : 2025-10-02 DOI: 10.1002/smll.70597
Chandra Sekhar Rout, Pratik Shinde, Mohammed Arkham Belgami, Jung Sang Cho, Sang Mun Jeong
{"title":"Halide Perovskites for Supercapacitors and Photosupercapacitors: Recent Developments and Future Perspectives (Small 39/2025)","authors":"Chandra Sekhar Rout,&nbsp;Pratik Shinde,&nbsp;Mohammed Arkham Belgami,&nbsp;Jung Sang Cho,&nbsp;Sang Mun Jeong","doi":"10.1002/smll.70597","DOIUrl":"https://doi.org/10.1002/smll.70597","url":null,"abstract":"<p><b>Supercapacitors</b></p><p>In article number 2503138, Chandra Sekhar Rout, Sang Mun Jeong, and co-workers provide a comprehensive review of supercapacitor and photosupercapacitor applications of halide perovskites and their developments. Initially, the structural aspects of halide perovskites are introduced and then the working principles and insights of both applications are briefly discussed. Subsequently, the progress of halide perovskites in supercapacitors and photosupercapacitors is thoroughly discussed.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 39","pages":""},"PeriodicalIF":12.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.70597","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Emerging Trends in Advanced Materials for C─S Coupling Reactions: Design Strategies and Future Perspectives (Small 39/2025) C─S耦合反应用先进材料的新趋势：设计策略和未来展望（Small 39/2025）
IF 12.1 2区 材料科学
Small Pub Date : 2025-10-02 DOI: 10.1002/smll.70595
Rabindranath Lo, Saandra Sharma, Deepak Kumar, Boori Sai, Mugdha Chaturvedi, Balla Putrakumar, Mittal L. Desai, Megha Rawat, Rama Krishna Peddinti, Sungtak Kim, Kolleboyina Jayaramulu
{"title":"Emerging Trends in Advanced Materials for C─S Coupling Reactions: Design Strategies and Future Perspectives (Small 39/2025)","authors":"Rabindranath Lo,&nbsp;Saandra Sharma,&nbsp;Deepak Kumar,&nbsp;Boori Sai,&nbsp;Mugdha Chaturvedi,&nbsp;Balla Putrakumar,&nbsp;Mittal L. Desai,&nbsp;Megha Rawat,&nbsp;Rama Krishna Peddinti,&nbsp;Sungtak Kim,&nbsp;Kolleboyina Jayaramulu","doi":"10.1002/smll.70595","DOIUrl":"https://doi.org/10.1002/smll.70595","url":null,"abstract":"<p><b>C–S Coupling Reactions</b></p><p>In article number 2505046, Sungtak Kim, Kolleboyina Jayaramulu, and co-workers highlight recent breakthroughs in heterogeneous catalysis for carbon-sulfur (C–S) bond formation, pivotal for pharmaceutical synthesis. It focuses on advanced nanomaterials including metals, metal oxides, single atom catalysts, 2D materials, and nanoporous MOFs that mitigate sulfur induced catalyst poisoning. Emphasis is given to catalyst architecture, structure activity relationships, and DFT guided mechanisms for designing next generation C–S coupling catalysts.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 39","pages":""},"PeriodicalIF":12.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.70595","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pleomorphism in Wild-Type and Engineered PP7 Virus-Like Particles. 野生型和工程化PP7病毒样颗粒的多形性。
IF 13.3 2区 材料科学
Small Pub Date : 2025-09-30 DOI: 10.1002/smll.202506285
Parisa Keshavarz-Joud,Matthew C Jenkins,Tahiti Dutta,Liangjun Zhao,Carolina Hernandez,Daija Bobe,Mohammadreza Paraan,M G Finn,Mykhailo Kopylov
{"title":"Pleomorphism in Wild-Type and Engineered PP7 Virus-Like Particles.","authors":"Parisa Keshavarz-Joud,Matthew C Jenkins,Tahiti Dutta,Liangjun Zhao,Carolina Hernandez,Daija Bobe,Mohammadreza Paraan,M G Finn,Mykhailo Kopylov","doi":"10.1002/smll.202506285","DOIUrl":"https://doi.org/10.1002/smll.202506285","url":null,"abstract":"Virus-like particles (VLPs) find applications across many different fields, aided by their stability, capacity for large-scale production, and presumed structural homogeneity. These attributes are a result of their highly efficient self-assembly, which stems from the evolutionary pressures on the natural viruses from which they are derived. It is found that VLPs based on the Leviphage PP7 assemble in an unexpectedly wide range of morphologies. The relative abundance of these structures is sensitive to small changes in the coat protein sequence. These results raise the possibility that structural plasticity may be a general property of such self-assembling structures rather than an exception.","PeriodicalId":228,"journal":{"name":"Small","volume":"94 1","pages":"e06285"},"PeriodicalIF":13.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Patternable ZIF-8 Poly-Porous Liquid Coating for Stable NH3 Sensing. 用于稳定NH3传感的可图图化ZIF-8多孔液体涂层。
IF 13.3 2区 材料科学
Small Pub Date : 2025-09-30 DOI: 10.1002/smll.202506766
Yisong Liu,Fangfang Su,Yangyang Xin,Jing Zhang,Dongdong Yao,Yaping Zheng
{"title":"Patternable ZIF-8 Poly-Porous Liquid Coating for Stable NH3 Sensing.","authors":"Yisong Liu,Fangfang Su,Yangyang Xin,Jing Zhang,Dongdong Yao,Yaping Zheng","doi":"10.1002/smll.202506766","DOIUrl":"https://doi.org/10.1002/smll.202506766","url":null,"abstract":"Ammonia (NH3), as a common gas in human society, is of great significance to industrial production, environmental protection, and human health. As a material with both solid pores and liquid fluidity, porous liquids (PLs) have great potential applications in gas adsorption, catalysis, storage, and sensing. However, the liquid nature of porous liquids limits their application scenarios and stability. Herein, the PLs consisting of ZIF-8 and ionic liquids (ILs) with vinyl are proposed, which can be rapidly polymerized under photoinitiator and ultraviolet light to form a poly-porous liquids (PPLs) coating with good mechanical properties. The effects of ZIF-8 content and ionic liquid ratio on the mechanical properties, electrical conductivity, and NH3 response of PPLs are further studied. Benefiting from the rich porosity of ZIF-8 and the excellent conductivity of ILs, PPL with a suitable ratio can achieve stable and high-sensitivity sensing for NH3. This PPL design paradigm establishes generalized guidelines for wearable gas sensors without requiring complex device encapsulation.","PeriodicalId":228,"journal":{"name":"Small","volume":"91 1","pages":"e06766"},"PeriodicalIF":13.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Fabrication of a Rigid-Flexible and Dual-Conductive Interphase on an Aluminum Current Collector for Ultra-Stable Anode-Free Sodium Batteries. 超稳定无阳极钠电池用铝集流器刚柔双导电界面的制备。
IF 13.3 2区 材料科学
Small Pub Date : 2025-09-30 DOI: 10.1002/smll.202508205
Lei Peng,Xinyi Huang,Qianyu Zeng,Liangjin Wei,Zhenzhen Liu,Xiaoyan Lv,Jing Su,Yanxuan Wen
{"title":"Fabrication of a Rigid-Flexible and Dual-Conductive Interphase on an Aluminum Current Collector for Ultra-Stable Anode-Free Sodium Batteries.","authors":"Lei Peng,Xinyi Huang,Qianyu Zeng,Liangjin Wei,Zhenzhen Liu,Xiaoyan Lv,Jing Su,Yanxuan Wen","doi":"10.1002/smll.202508205","DOIUrl":"https://doi.org/10.1002/smll.202508205","url":null,"abstract":"Anode-free sodium batteries (AFSBs) guarantee enhanced energy density and safety; however, their practical applications are hindered by uncontrolled dendritic growth and fragile solid electrolyte interphase formation. Hence, a novel interface engineering strategy is adopted in the present work to construct an in situ 3D porous interphase with dual ion/electron conductive channels on aluminum (Al) foil. The interphase consisting of a fast ion-conducting sodium aluminate (NaAlO2)framework, a highly conductive carbon nanotube network, and a flexible carboxymethyl cellulose binder is fabricated through a simple in situ chemical etching method. The unique architecture of the as-prepared interface synergistically regulates the sodiophilic nature and the ion/electron flux distribution, dramatically reducing the sodium nucleation overpotential from 35 mV for bare Al to 15 mV, and enabling ultra-stable sodium plating/stripping in the half cells for over 6000 h at 1 mA cm-2 with a low polarization of 30 mV. When the resultant anode-free full cell is paired with a sodium vanadium phosphate (Na3V2(PO4)3) cathode, it yields impressive high-rate cyclic stability with a retention capacity of 90.7% after 100 cycles at 1 C and a remarkable energy density of 314 Wh kg-1. This work presents a scalable and effective method for stabilizing anode-free configurations and offers valuable insights for next-generation metal-based battery fabrication.","PeriodicalId":228,"journal":{"name":"Small","volume":"54 1","pages":"e08205"},"PeriodicalIF":13.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145194695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Optical Manipulation-Prepared Edge-Contacted MoTe2-NbS2 Heterojunction Photodetectors for High-Performance, Self-Powered, and Consistent Broadband Detection. 用于高性能、自供电和一致宽带检测的光学操作制备边缘接触MoTe2-NbS2异质结光电探测器。
IF 13.3 2区 材料科学
Small Pub Date : 2025-09-30 DOI: 10.1002/smll.202509112
Yan Wang,Jiajing He,Yibiao Hu,Chang Xu,Yu Mao,Ningning Dong,Jun Wang
{"title":"Optical Manipulation-Prepared Edge-Contacted MoTe2-NbS2 Heterojunction Photodetectors for High-Performance, Self-Powered, and Consistent Broadband Detection.","authors":"Yan Wang,Jiajing He,Yibiao Hu,Chang Xu,Yu Mao,Ningning Dong,Jun Wang","doi":"10.1002/smll.202509112","DOIUrl":"https://doi.org/10.1002/smll.202509112","url":null,"abstract":"Photodetectors, as fundamental components of modern optoelectronic systems, hold significant potential across various domains including communications, healthcare, and military reconnaissance. Heterojunctions play a crucial role in enhancing carrier separation through interface energy band engineering, thereby enabling high-performance detection. Furthermore, metal-semiconductor edge contacts can further optimize device performance, though conventional fabrication methods are often complex, time-consuming, and risk inducing material damage. A novel approach is proposed for realizing edge contact between 2D semiconductors and metals by using femtosecond laser-driven nanosheets moving on a substrate. MoTe2 and NbS2 nanosheets are precisely assembled into edge-contact heterojunction photodetectors by combining dry transfer techniques with optical manipulation. The device exhibits excellent responsivity (2 A W-1), specific detectivity (1.36 × 10⁸ Jones), and quantum efficiency (278%) at 900 nm. Moreover, this detector demonstrates a superior response speed over traditional top-contact detectors, achieving a response time of 30/46 µs and a response bandwidth of 5.4 kHz. Significantly, the detectors show broadband optical response spanning 280-1380 nm, with a consistent responsivity maintained between 280 and 1200 nm. The optical manipulation scheme also provides new solutions for the preparation of transverse heterojunction, customized edge-contact structure, and modulation of heterojunction junction area, which injects new momentum for the development of future optoelectronic devices.","PeriodicalId":228,"journal":{"name":"Small","volume":"109 1","pages":"e09112"},"PeriodicalIF":13.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Harvesting the Elastic Nature of Domain Walls to Emulate the Synaptic Functions for Brain-Inspired Computing. 利用域壁的弹性特性模拟脑启发计算的突触功能。
IF 13.3 2区 材料科学
Small Pub Date : 2025-09-30 DOI: 10.1002/smll.202507581
Hasibur Rahaman,Durgesh Kumar,Ramu Maddu,Chung Hong Jing,Lim Sze Ter,Bilal Jamshed,S N Piramanayagam
{"title":"Harvesting the Elastic Nature of Domain Walls to Emulate the Synaptic Functions for Brain-Inspired Computing.","authors":"Hasibur Rahaman,Durgesh Kumar,Ramu Maddu,Chung Hong Jing,Lim Sze Ter,Bilal Jamshed,S N Piramanayagam","doi":"10.1002/smll.202507581","DOIUrl":"https://doi.org/10.1002/smll.202507581","url":null,"abstract":"Neuromorphic computing (NC), based on a network of numerous neurons and synapses, promises to lead the future of artificial intelligence (AI). Among various material platforms, spintronic domain wall (DW) devices emerge as promising energy-efficient candidates for NC. Despite various proposals, the experimental realization of DW devices-based NC is only starting. Therefore, the concept of ladder DW devices, whose 2D layout resembles a conventional ladder, as a synaptic element, is experimentally studied. First, spin-orbit torque-driven DW dynamics is investigated in proposed devices and found DW pinning across a broad range of characteristic parameters (tilt angle (θ)) and current density. Moreover, maximum pinning strength is observed for θ = 30° in the investigated range. Further, micromagnetic simulations suggest that i) Laplace pressure on the DWs and ii) non-uniform distribution of the current in various device segments mainly account for the experimental observations. Further, the current density is optimized and observed a total of 19 multilevel magnetization states, confirming the stability of the design in all the studied devices.","PeriodicalId":228,"journal":{"name":"Small","volume":"26 1","pages":"e07581"},"PeriodicalIF":13.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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