Nature Materials最新文献_第8页

Controlling Coulomb correlations and fine structure of quasi-one-dimensional excitons by magnetic order

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-19 DOI: 10.1038/s41563-025-02120-1

M. Liebich, M. Florian, N. Nilforoushan, F. Mooshammer, A. D. Koulouklidis, L. Wittmann, K. Mosina, Z. Sofer, F. Dirnberger, M. Kira, R. Huber

{"title":"Controlling Coulomb correlations and fine structure of quasi-one-dimensional excitons by magnetic order","authors":"M. Liebich, M. Florian, N. Nilforoushan, F. Mooshammer, A. D. Koulouklidis, L. Wittmann, K. Mosina, Z. Sofer, F. Dirnberger, M. Kira, R. Huber","doi":"10.1038/s41563-025-02120-1","DOIUrl":"10.1038/s41563-025-02120-1","url":null,"abstract":"Many surprising properties of quantum materials result from Coulomb correlations defining electronic quasiparticles and their interaction chains. In van der Waals layered crystals, enhanced correlations have been tailored in reduced dimensions, enabling excitons with giant binding energies and emergent phases including ferroelectric, ferromagnetic and multiferroic orders. Yet, correlation design has primarily relied on structural engineering. Here we present quantitative experiment–theory proof that excitonic correlations can be switched through magnetic order. By probing internal Rydberg-like transitions of excitons in the magnetic semiconductor CrSBr, we reveal their binding energy and a dramatic anisotropy of their quasi-one-dimensional orbitals manifesting in strong fine-structure splitting. We switch the internal structure from strongly bound, monolayer-localized states to weakly bound, interlayer-delocalized states by pushing the system from antiferromagnetic to paramagnetic phases. Our analysis connects this transition to the exciton’s spin-controlled effective quantum confinement, supported by the exciton’s dynamics. In future applications, excitons or even condensates may be interfaced with spintronics; extrinsically switchable Coulomb correlations could shape phase transitions on demand. The antiferromagnetic-to-paramagnetic phase transition in a two-dimensional semiconducting magnet, CrSBr, induces an exciton confinement transition from a strongly bound quasi-one-dimensional state to a weakly bound interlayer-delocalized state.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 3","pages":"384-390"},"PeriodicalIF":37.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41563-025-02120-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Blood–brain-barrier-crossing lipid nanoparticles for mRNA delivery to the central nervous system

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-02-17 DOI: 10.1038/s41563-024-02114-5

Chang Wang, Yonger Xue, Tamara Markovic, Haoyuan Li, Siyu Wang, Yichen Zhong, Shi Du, Yuebao Zhang, Xucheng Hou, Yang Yu, Zhengwei Liu, Meng Tian, Diana D. Kang, Leiming Wang, Kaiyuan Guo, Dinglingge Cao, Jingyue Yan, Binbin Deng, David W. McComb, Ramon E. Parsons, Angelica M. Minier-Toribio, Leanne M. Holt, Jiayi Pan, Alice Hashemi, Brian H. Kopell, Alexander W. Charney, Eric J. Nestler, Paul C. Peng, Yizhou Dong

{"title":"Blood–brain-barrier-crossing lipid nanoparticles for mRNA delivery to the central nervous system","authors":"Chang Wang, Yonger Xue, Tamara Markovic, Haoyuan Li, Siyu Wang, Yichen Zhong, Shi Du, Yuebao Zhang, Xucheng Hou, Yang Yu, Zhengwei Liu, Meng Tian, Diana D. Kang, Leiming Wang, Kaiyuan Guo, Dinglingge Cao, Jingyue Yan, Binbin Deng, David W. McComb, Ramon E. Parsons, Angelica M. Minier-Toribio, Leanne M. Holt, Jiayi Pan, Alice Hashemi, Brian H. Kopell, Alexander W. Charney, Eric J. Nestler, Paul C. Peng, Yizhou Dong","doi":"10.1038/s41563-024-02114-5","DOIUrl":"https://doi.org/10.1038/s41563-024-02114-5","url":null,"abstract":"The systemic delivery of mRNA molecules to the central nervous system is challenging as they need to cross the blood–brain barrier (BBB) to reach into the brain. Here we design and synthesize 72 BBB-crossing lipids fabricated by conjugating BBB-crossing modules and amino lipids, and use them to assemble BBB-crossing lipid nanoparticles for mRNA delivery. Screening and structure optimization studies resulted in a lead formulation that has substantially higher mRNA delivery efficiency into the brain than those exhibited by FDA-approved lipid nanoparticles. Studies in distinct mouse models show that these BBB-crossing lipid nanoparticles can transfect neurons and astrocytes of the whole brain after intravenous injections, being well tolerated across several dosage regimens. Moreover, these nanoparticles can deliver mRNA to human brain ex vivo samples. Overall, these BBB-crossing lipid nanoparticles deliver mRNA to neurons and astrocytes in broad brain regions, thereby being a promising platform to treat a range of central nervous system diseases.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"3 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427165","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

Lean design of a strong and ductile dual-phase titanium–oxygen alloy 高强度和延展性双相钛氧合金的精益设计

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-17 DOI: 10.1038/s41563-025-02118-9

Wangwang Ding, Qiying Tao, Chang Liu, Gang Chen, SangHyuk Yoo, Wei Cai, Peng Cao, Baorui Jia, Haoyang Wu, Deyin Zhang, Hongmin Zhu, Lin Zhang, Xuanhui Qu, Jin Zou, Mingli Qin

{"title":"Lean design of a strong and ductile dual-phase titanium–oxygen alloy","authors":"Wangwang Ding, Qiying Tao, Chang Liu, Gang Chen, SangHyuk Yoo, Wei Cai, Peng Cao, Baorui Jia, Haoyang Wu, Deyin Zhang, Hongmin Zhu, Lin Zhang, Xuanhui Qu, Jin Zou, Mingli Qin","doi":"10.1038/s41563-025-02118-9","DOIUrl":"10.1038/s41563-025-02118-9","url":null,"abstract":"Unalloyed titanium boasts an impressive combination of ductility, biocompatibility and corrosion resistance. However, its strength properties are moderate, which constrains its use in demanding structural applications. Traditional alloying methods used to strengthen titanium often compromise ductility and tend to be costly and energy intensive. Here we present a lean alloy design approach to create a strong and ductile dual-phase titanium–oxygen alloy. By embedding a coherent nanoscale allotropic face-centred cubic titanium phase into the hexagonal close-packed titanium matrix, we significantly enhance strength while preserving substantial ductility. This hexagonal-close-packed/face-centred-cubic dual-phase titanium–oxygen alloy is created by leveraging the tailored oxide-layer thickness of the powders and the rapid cooling inherent in laser-based powder bed fusion. The as-printed Ti–0.67 wt% O alloy exhibits an ultimate tensile strength of 1,119.3 ± 29.2 MPa and a ductility of 23.3 ± 1.9%. Our strategy of incorporating a coherent nanoscale allotropic phase offers a promising pathway to developing high-performance, cost-effective and sustainable lean alloys. A hexagonal-close-packed/face-centred-cubic dual-phase titanium–oxygen alloy is lean designed and fabricated by laser-based powder bed fusion using titanium powders with customized oxide-layer thickness. The as-printed alloy achieves an excellent combination of high strength and ductility.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 4","pages":"506-512"},"PeriodicalIF":37.2,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427172","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

Low-power 2D gate-all-around logics via epitaxial monolithic 3D integration

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-14 DOI: 10.1038/s41563-025-02117-w

Junchuan Tang, Jianfeng Jiang, Xiaoyin Gao, Xin Gao, Chenxi Zhang, Mengdi Wang, Chengyuan Xue, Zhongrui Li, Yuling Yin, Congwei Tan, Feng Ding, Chenguang Qiu, Lian-Mao Peng, Hailin Peng

{"title":"Low-power 2D gate-all-around logics via epitaxial monolithic 3D integration","authors":"Junchuan Tang, Jianfeng Jiang, Xiaoyin Gao, Xin Gao, Chenxi Zhang, Mengdi Wang, Chengyuan Xue, Zhongrui Li, Yuling Yin, Congwei Tan, Feng Ding, Chenguang Qiu, Lian-Mao Peng, Hailin Peng","doi":"10.1038/s41563-025-02117-w","DOIUrl":"10.1038/s41563-025-02117-w","url":null,"abstract":"Innovations in device architectures and materials promote transistor miniaturization for improved performance, energy efficiency and integration density. At foreseeable ångström nodes, a gate-all-around (GAA) field-effect transistor based on two-dimensional (2D) semiconductors would provide excellent electrostatic gate controllability to achieve ultimate power scaling and performance delivering. However, a major roadblock lies in the scalable integration of 2D GAA heterostructures with atomically smooth and conformal interfaces. Here we report a wafer-scale multi-layer-stacked single-crystalline 2D GAA configuration achieved with low-temperature monolithic three-dimensional integration, in which high-mobility 2D semiconductor Bi2O2Se was epitaxially integrated by high-κ layered native-oxide dielectric Bi2SeO5 with an atomically smooth interface, enabling a high electron mobility of 280 cm2 V−1 s−1 and a near-ideal subthreshold swing of 62 mV dec−1. The scaled 2D GAA field-effect transistor with 30 nm gate length exhibits an ultralow operation voltage of 0.5 V, a high on-state current exceeding 1 mA μm−1, an ultralow intrinsic delay of 1.9 ps and an energy-delay product of 1.84 × 10−27 Js μm−1. This work demonstrates a wafer-scale 2D-material-based GAA system with valid performance and power merits, holding promising prospects for beyond-silicon monolithic three-dimensional circuits. A multi-layer wafer-scale 2D gate-all-around system with an atomically smooth interface fabricated via epitaxial monolithic 3D integration shows good performance and power efficiency, holding promise for the forthcoming ångström technology node.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 4","pages":"519-526"},"PeriodicalIF":37.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418327","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

Dielectric polymers with mechanical bonds for high-temperature capacitive energy storage

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-02-14 DOI: 10.1038/s41563-025-02130-z

Rui Wang, Yujie Zhu, Shangshi Huang, Jing Fu, Yifan Zhou, Manxi Li, Li Meng, Xiyu Zhang, Jiajie Liang, Zhaoyu Ran, Mingcong Yang, Junluo Li, Xinhua Dong, Jun Hu, Jinliang He, Qi Li

{"title":"Dielectric polymers with mechanical bonds for high-temperature capacitive energy storage","authors":"Rui Wang, Yujie Zhu, Shangshi Huang, Jing Fu, Yifan Zhou, Manxi Li, Li Meng, Xiyu Zhang, Jiajie Liang, Zhaoyu Ran, Mingcong Yang, Junluo Li, Xinhua Dong, Jun Hu, Jinliang He, Qi Li","doi":"10.1038/s41563-025-02130-z","DOIUrl":"https://doi.org/10.1038/s41563-025-02130-z","url":null,"abstract":"High-temperature capacitive energy storage demands that dielectric materials maintain low electrical conduction loss and high discharged energy density under thermal extremes. The temperature capability of dielectric polymers is limited to below 200 °C, lagging behind requirements for high-power and harsh-condition electronics. Here we report a molecular topology design for dielectric polymers with mechanical bonds that overcomes this obstacle, where cyclic polyethers are threaded onto the axles of various polyimides. From density functional theory and molecular dynamics calculations, we found that the local vibrations of the encircled polymer chains were damped by the cyclic molecules through mechanical bonding, substantially inhibiting the phonon-assisted interchain charge transport that dominates conduction loss when approaching the thermal extremes. At 250 °C, we experimentally observed a d.c. electrical resistivity four orders of magnitude greater than that of commercial polyimides, with the discharged energy density reaching 4.1 J cm−3 with 90% charge–discharge efficiency, exceeding conventional dielectric polymers and polymer composites. These findings open up opportunities for substantially promoting the temperature capability of dielectric polymers given the rich diversity of existing molecular topologies modified with mechanical bonds.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"67 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417535","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

Layers split and zip for phase transition

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-13 DOI: 10.1038/s41563-025-02148-3

Stephen D. Funni, Judy J. Cha

引用次数: 0

Anomalous thermal transport in Eshelby twisted van der Waals nanowires 埃谢尔比扭曲范德瓦尔斯纳米线中的反常热传输

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-02-12 DOI: 10.1038/s41563-024-02108-3

Yin Liu, Lei Jin, Tribhuwan Pandey, Haoye Sun, Yuzi Liu, Xun Li, Alejandro Rodriguez, Yueyin Wang, Tao Zhou, Rui Chen, Yongwen Sun, Yang Yang, Daryl C. Chrzan, Lucas Lindsay, Junqiao Wu, Jie Yao

{"title":"Anomalous thermal transport in Eshelby twisted van der Waals nanowires","authors":"Yin Liu, Lei Jin, Tribhuwan Pandey, Haoye Sun, Yuzi Liu, Xun Li, Alejandro Rodriguez, Yueyin Wang, Tao Zhou, Rui Chen, Yongwen Sun, Yang Yang, Daryl C. Chrzan, Lucas Lindsay, Junqiao Wu, Jie Yao","doi":"10.1038/s41563-024-02108-3","DOIUrl":"https://doi.org/10.1038/s41563-024-02108-3","url":null,"abstract":"Dislocations in van der Waals (vdW) layered nanomaterials induce strain and structural changes that substantially impact thermal transport. Understanding these effects could enable the manipulation of dislocations for improved thermoelectric and optoelectronic applications, but experimental insights remain limited. In this study, we use synthetic Eshelby twisted vdW GeS nanowires (NWs) with single screw dislocations as a model system to explore the interplay between dislocation-induced structural modifications and lattice thermal conductivity. Our measurements reveal a monoclinic structure stabilized by the dislocation, leading to a substantial drop in thermal conductivity for larger-diameter NWs (70% at room temperature), supported by first-principles calculations. Interestingly, we also find an anomalous enhancement of thermal conductivity with decreasing diameter in twisted NWs, contrary to typical trends in non-twisted GeS NWs. This is attributed to increased conductivity near the NW cores due to compressive strain around the central dislocations, and aligns with a density-functional-theory-informed core–shell model. Our results highlight the critical role of dislocations in thermal conduction, providing fundamental insights for defect and strain engineering in advanced thermal applications.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"58 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393196","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

Activating deformation twinning in cubic boron nitride

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-12 DOI: 10.1038/s41563-024-02111-8

Yeqiang Bu, Zhengping Su, Junquan Huang, Ke Tong, Penghui Li, Chong Wang, Tianye Jin, Song Zhao, Zhisheng Zhao, Alexander Soldatov, Yanbin Wang, Bo Xu, Zhongyuan Liu, Anmin Nie, Hongtao Wang, Wei Yang, Yongjun Tian

{"title":"Activating deformation twinning in cubic boron nitride","authors":"Yeqiang Bu, Zhengping Su, Junquan Huang, Ke Tong, Penghui Li, Chong Wang, Tianye Jin, Song Zhao, Zhisheng Zhao, Alexander Soldatov, Yanbin Wang, Bo Xu, Zhongyuan Liu, Anmin Nie, Hongtao Wang, Wei Yang, Yongjun Tian","doi":"10.1038/s41563-024-02111-8","DOIUrl":"10.1038/s41563-024-02111-8","url":null,"abstract":"Deformation twinning, a phenomenon primarily documented within metallic systems, has remained essentially unexplored in covalent materials due to the formidable challenges posed by their inherent extreme hardness and brittleness. Here, by employing a five-degree-of-freedom nano-manipulation stage inside a transmission electron microscope, we reveal a loading-specific twinning criterion for cubic boron nitride and successfully activate extensive deformation twinning with substantial improvements in mechanical properties in <100>-oriented cubic boron nitride submicrometre pillars at room temperature. Beyond cubic boron nitride, this criterion is also proven widely applicable across a spectrum of covalent materials. Investigations on the twinning dynamics at the atomic level in cubic boron nitride suggest a continuous-transition-mediated pathway. These findings substantially advance our comprehension of twinning mechanisms in covalent face-centred cubic materials, and herald a promising avenue for microstructural engineering aimed at enhancing the strength and toughness of these materials in their applications. Deformation twinning, a key deformation mechanism that is rarely explored in superhard materials, is shown to be activated in cubic boron nitride and other cubic covalent materials under a loading-specific twinning criterion.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 3","pages":"361-368"},"PeriodicalIF":37.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393195","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

A cryogenic memristor

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-11 DOI: 10.1038/s41563-025-02125-w

Dennis Meier, Davi Rodrigues

引用次数: 0

Adding superconductivity to highly coherent electronic spins

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-02-10 DOI: 10.1038/s41563-025-02139-4

Ilan T. Rosen

引用次数: 0