Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01978-x
Kyung-Jin Lee, Vincent Cros, Hyun-Woo Lee
Electrons in solids carry orbital angular momentum in diverse non-equilibrium situations. This orbital current is often overlooked when considering electronic transport. Here we discuss how recent studies of orbital current are enabling more opportunities for technological advancements rooted in angular momentum.
{"title":"Electric-field-induced orbital angular momentum in metals","authors":"Kyung-Jin Lee, Vincent Cros, Hyun-Woo Lee","doi":"10.1038/s41563-024-01978-x","DOIUrl":"10.1038/s41563-024-01978-x","url":null,"abstract":"Electrons in solids carry orbital angular momentum in diverse non-equilibrium situations. This orbital current is often overlooked when considering electronic transport. Here we discuss how recent studies of orbital current are enabling more opportunities for technological advancements rooted in angular momentum.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1302-1304"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330248","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01991-0
A class of III–V semiconductors with memristive properties has been created by combining computational screening and experimental synthesis. The synthesized compounds have gate-tunable synaptic functions, and could be used to create energy-efficient, reprogrammable logic devices that are compatible with existing silicon technology.
{"title":"An approach to identify and synthesize memristive III–V semiconductors","authors":"","doi":"10.1038/s41563-024-01991-0","DOIUrl":"10.1038/s41563-024-01991-0","url":null,"abstract":"A class of III–V semiconductors with memristive properties has been created by combining computational screening and experimental synthesis. The synthesized compounds have gate-tunable synaptic functions, and could be used to create energy-efficient, reprogrammable logic devices that are compatible with existing silicon technology.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1322-1323"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330205","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01940-x
Yongjoon Lee, Heejun Yang
A phase engineering strategy, using a device configuration consisting of 2D channel materials and patterned electrodes, has been demonstrated. It achieves various phase configurations of 2D materials and versatile functions that can be tailored in situ.
{"title":"Tailoring phases on the device","authors":"Yongjoon Lee, Heejun Yang","doi":"10.1038/s41563-024-01940-x","DOIUrl":"10.1038/s41563-024-01940-x","url":null,"abstract":"A phase engineering strategy, using a device configuration consisting of 2D channel materials and patterned electrodes, has been demonstrated. It achieves various phase configurations of 2D materials and versatile functions that can be tailored in situ.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1309-1310"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330208","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01992-z
Ultrafast laser light can create emergent polar orders in specially designed thin-film heterostructures. A single-shot X-ray diffraction study, over a timescale of seven orders of magnitude, has revealed how one such polar supercrystal forms with lattice periodicities of tens of nanometres.
超快激光能在专门设计的薄膜异质结构中产生新的极性秩序。一项时间跨度为七个数量级的单次 X 射线衍射研究揭示了这种极性超晶体是如何形成的,其晶格周期可达数十纳米。
{"title":"Tracking the irreversible light-induced creation of extended polar order from disorder","authors":"","doi":"10.1038/s41563-024-01992-z","DOIUrl":"10.1038/s41563-024-01992-z","url":null,"abstract":"Ultrafast laser light can create emergent polar orders in specially designed thin-film heterostructures. A single-shot X-ray diffraction study, over a timescale of seven orders of magnitude, has revealed how one such polar supercrystal forms with lattice periodicities of tens of nanometres.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1320-1321"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330213","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01915-y
Yeonhee Lee, Gyeong-Hwan Kim, Jwa-Min Nam
Monolayers of metastable 1T′-phase transition metal dichalcogenides can be rapidly grown and stabilized on 4H-phase gold nanowires, providing a hybrid system for ultrasensitive surface-enhanced Raman scattering detection.
{"title":"Unconventional metal phase stabilizing metastable 2D materials","authors":"Yeonhee Lee, Gyeong-Hwan Kim, Jwa-Min Nam","doi":"10.1038/s41563-024-01915-y","DOIUrl":"10.1038/s41563-024-01915-y","url":null,"abstract":"Monolayers of metastable 1T′-phase transition metal dichalcogenides can be rapidly grown and stabilized on 4H-phase gold nanowires, providing a hybrid system for ultrasensitive surface-enhanced Raman scattering detection.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1307-1308"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330246","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-02009-5
Benjamin J. Marsland, Nicola L. Harris
An oral immunotherapy consisting of an inulin-based gel loaded with an allergen successfully suppresses food allergy in mice.
一种口服免疫疗法包括一种含有过敏原的菊粉基凝胶,它能成功抑制小鼠对食物的过敏。
{"title":"Tackling food allergies by microbiome modulation","authors":"Benjamin J. Marsland, Nicola L. Harris","doi":"10.1038/s41563-024-02009-5","DOIUrl":"10.1038/s41563-024-02009-5","url":null,"abstract":"An oral immunotherapy consisting of an inulin-based gel loaded with an allergen successfully suppresses food allergy in mice.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1318-1319"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330207","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01990-1
Xavier Obradors, Teresa Puig
Increasing the electronic carrier density in the overdoped state of high-temperature superconductors enhances the critical current density due to higher efficiency of vortex pinning defects.
在高温超导体的过掺杂状态下,电子载流子密度的增加会提高临界电流密度,这是因为涡流钉缺陷的效率更高。
{"title":"Pin the vortex on the superconductor","authors":"Xavier Obradors, Teresa Puig","doi":"10.1038/s41563-024-01990-1","DOIUrl":"10.1038/s41563-024-01990-1","url":null,"abstract":"Increasing the electronic carrier density in the overdoped state of high-temperature superconductors enhances the critical current density due to higher efficiency of vortex pinning defects.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1311-1312"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330209","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}
Pub Date : 2024-09-30DOI: 10.1038/s41563-024-01988-9
Yanzhen Li, Jiangtao Su, Xiaodong Chen
Precise stress control of thin films enables damage-free dry transfer printing onto flexible substrates.
对薄膜进行精确的应力控制,可在柔性基底上进行无损干式转印。
{"title":"Damage-free transfer printing","authors":"Yanzhen Li, Jiangtao Su, Xiaodong Chen","doi":"10.1038/s41563-024-01988-9","DOIUrl":"10.1038/s41563-024-01988-9","url":null,"abstract":"Precise stress control of thin films enables damage-free dry transfer printing onto flexible substrates.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 10","pages":"1313-1314"},"PeriodicalIF":37.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330154","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}
Pub Date : 2024-09-27DOI: 10.1038/s41563-024-02016-6
Yael Tsarfati, Karen C. Bustillo, Benjamin H. Savitzky, Luke Balhorn, Tyler J. Quill, Adam Marks, Jennifer Donohue, Steven E. Zeltmann, Christopher J. Takacs, Alexander Giovannitti, Iain McCulloch, Colin Ophus, Andrew M. Minor, Alberto Salleo
Polymeric organic mixed ionic–electronic conductors underpin several technologies in which their electrochemical properties are desirable. These properties, however, depend on the microstructure that develops in their aqueous operational environment. We investigated the structure of a model organic mixed ionic–electronic conductor across multiple length scales using cryogenic four-dimensional scanning transmission electron microscopy in both its dry and hydrated states. Four-dimensional scanning transmission electron microscopy allows us to identify the prevalent defects in the polymer crystalline regions and to analyse the liquid crystalline nature of the polymer. The orientation maps of the dry and hydrated polymers show that swelling-induced disorder is mostly localized in discrete regions, thereby largely preserving the liquid crystalline order. Therefore, the liquid crystalline mesostructure makes electronic transport robust to electrolyte ingress. This study demonstrates that cryogenic four-dimensional scanning transmission electron microscopy provides multiscale structural insights into complex, hierarchical structures such as polymeric organic mixed ionic–electronic conductors, even in their hydrated operating state.
{"title":"The hierarchical structure of organic mixed ionic–electronic conductors and its evolution in water","authors":"Yael Tsarfati, Karen C. Bustillo, Benjamin H. Savitzky, Luke Balhorn, Tyler J. Quill, Adam Marks, Jennifer Donohue, Steven E. Zeltmann, Christopher J. Takacs, Alexander Giovannitti, Iain McCulloch, Colin Ophus, Andrew M. Minor, Alberto Salleo","doi":"10.1038/s41563-024-02016-6","DOIUrl":"https://doi.org/10.1038/s41563-024-02016-6","url":null,"abstract":"<p>Polymeric organic mixed ionic–electronic conductors underpin several technologies in which their electrochemical properties are desirable. These properties, however, depend on the microstructure that develops in their aqueous operational environment. We investigated the structure of a model organic mixed ionic–electronic conductor across multiple length scales using cryogenic four-dimensional scanning transmission electron microscopy in both its dry and hydrated states. Four-dimensional scanning transmission electron microscopy allows us to identify the prevalent defects in the polymer crystalline regions and to analyse the liquid crystalline nature of the polymer. The orientation maps of the dry and hydrated polymers show that swelling-induced disorder is mostly localized in discrete regions, thereby largely preserving the liquid crystalline order. Therefore, the liquid crystalline mesostructure makes electronic transport robust to electrolyte ingress. This study demonstrates that cryogenic four-dimensional scanning transmission electron microscopy provides multiscale structural insights into complex, hierarchical structures such as polymeric organic mixed ionic–electronic conductors, even in their hydrated operating state.</p>","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"11 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322016","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}
Pub Date : 2024-09-24DOI: 10.1038/s41563-024-02008-6
Giovanni Bordiga, Eder Medina, Sina Jafarzadeh, Cyrill Bösch, Ryan P. Adams, Vincent Tournat, Katia Bertoldi
Harnessing the rich nonlinear dynamics of highly deformable materials has the potential to unlock the next generation of functional smart materials and devices. However, unlocking such potential requires effective strategies to spatially engineer material architectures within the nonlinear dynamic regime. Here we introduce an inverse-design framework to discover flexible mechanical metamaterials with a target nonlinear dynamic response. The desired dynamic task is encoded via optimal tuning of the full-scale metamaterial geometry through an inverse-design approach powered by a fully differentiable simulation environment. By deploying such a strategy, mechanical metamaterials are tailored for energy focusing, energy splitting, dynamic protection and nonlinear motion conversion. Furthermore, our design framework can be expanded to automatically discover reprogrammable architectures capable of switching between different dynamic tasks. For instance, we encode two strongly competing tasks—energy focusing and dynamic protection—within a single architecture, using static precompression to switch between these behaviours. The discovered designs are physically realized and experimentally tested, demonstrating the robustness of the engineered tasks. Our approach opens an untapped avenue towards designer materials with tailored robotic-like reprogrammable functionalities. A framework is presented to automate the design of flexible metamaterial structures that can execute desired nonlinear dynamic tasks and have reprogrammable functionality.
{"title":"Automated discovery of reprogrammable nonlinear dynamic metamaterials","authors":"Giovanni Bordiga, Eder Medina, Sina Jafarzadeh, Cyrill Bösch, Ryan P. Adams, Vincent Tournat, Katia Bertoldi","doi":"10.1038/s41563-024-02008-6","DOIUrl":"10.1038/s41563-024-02008-6","url":null,"abstract":"Harnessing the rich nonlinear dynamics of highly deformable materials has the potential to unlock the next generation of functional smart materials and devices. However, unlocking such potential requires effective strategies to spatially engineer material architectures within the nonlinear dynamic regime. Here we introduce an inverse-design framework to discover flexible mechanical metamaterials with a target nonlinear dynamic response. The desired dynamic task is encoded via optimal tuning of the full-scale metamaterial geometry through an inverse-design approach powered by a fully differentiable simulation environment. By deploying such a strategy, mechanical metamaterials are tailored for energy focusing, energy splitting, dynamic protection and nonlinear motion conversion. Furthermore, our design framework can be expanded to automatically discover reprogrammable architectures capable of switching between different dynamic tasks. For instance, we encode two strongly competing tasks—energy focusing and dynamic protection—within a single architecture, using static precompression to switch between these behaviours. The discovered designs are physically realized and experimentally tested, demonstrating the robustness of the engineered tasks. Our approach opens an untapped avenue towards designer materials with tailored robotic-like reprogrammable functionalities. A framework is presented to automate the design of flexible metamaterial structures that can execute desired nonlinear dynamic tasks and have reprogrammable functionality.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 11","pages":"1486-1494"},"PeriodicalIF":37.2,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317082","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}