Advanced Science最新文献

Combined Exsolution and Electrodeposition Strategy for Enhancing Electrocatalytic Activity of Ti-Based Perovskite Oxides in Oxygen and Hydrogen Evolution Reactions.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-20 DOI: 10.1002/advs.202410535

Shangshang Zuo, Chenchen Wang, Zhi Xia, Jiaxin Ding, Aaron B Naden, John T S Irvine

{"title":"Combined Exsolution and Electrodeposition Strategy for Enhancing Electrocatalytic Activity of Ti-Based Perovskite Oxides in Oxygen and Hydrogen Evolution Reactions.","authors":"Shangshang Zuo, Chenchen Wang, Zhi Xia, Jiaxin Ding, Aaron B Naden, John T S Irvine","doi":"10.1002/advs.202410535","DOIUrl":"https://doi.org/10.1002/advs.202410535","url":null,"abstract":"The significant interest in perovskite oxides stems from their compositional and structural flexibility, particularly in the field of electrochemistry. In this study, the double E strategy (exsolution and electrodeposition strategies) is successfully devised for synthesizing perovskite-based bifunctional electrocatalysts, enabling simultaneous OER and HER applications with exceptional catalytic performance. The synthesized R-LCTFe/Ni catalyst exhibits outstanding electrocatalytic activity, delivering low overpotentials of 349 and 309 mV at 10 mA cm-2 for OER and HER, respectively, indicating substantial improvements in the inherent electrocatalytic activity. Moreover, the impressive stability of R-LCTFe/Ni under alkaline conditions underscores its potential for practical water electrolysis applications. The superior bifunctional electrocatalytic performance can be attributed to the reduced charge transfer resistance and the synergistic cooperation between exsolved Fe nanoparticles and electrodeposited Ni compounds. The successful development of the R-LCTFe/Co catalyst further confirms the transferability of the double E strategy. Compared to R-LCTFe/Ni, the overpotential of R-LCTFe/Co is 58 mV higher for OER, yet 48 mV lower for HER at a current density of 10 mA cm-2. This study provides an efficient and promising approach for the fabrication of highly active perovskite-based electrocatalysts, contributing valuable insights into the design of bifunctional electrocatalysts for OER and HER.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2410535"},"PeriodicalIF":14.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862627","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

Hierarchical Targeting Nanodrug with Holistic DNA Protection for Effective Treatment of Acute Kidney Injury.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-20 DOI: 10.1002/advs.202411254

Qiaohui Chen, Yongqi Yang, Xiaohong Ying, Changkun Huang, Jianlin Chen, Jue Wang, Ziyu Wu, Wan Zeng, Chenxi Miao, Xiaojing Shi, Yayun Nan, Qiong Huang, Kelong Ai

{"title":"Hierarchical Targeting Nanodrug with Holistic DNA Protection for Effective Treatment of Acute Kidney Injury.","authors":"Qiaohui Chen, Yongqi Yang, Xiaohong Ying, Changkun Huang, Jianlin Chen, Jue Wang, Ziyu Wu, Wan Zeng, Chenxi Miao, Xiaojing Shi, Yayun Nan, Qiong Huang, Kelong Ai","doi":"10.1002/advs.202411254","DOIUrl":"https://doi.org/10.1002/advs.202411254","url":null,"abstract":"Acute kidney injury (AKI) manifests a hallmark pathological feature of extensive and severe DNA damage in renal tubules, primarily induced by the excessive of toxic reactive oxygen species (ROS) from the mitochondrial electron transport chain. The kidney's complex intricate physiological architecture and the heterogeneous intracellular environment pose significant challenges for effective sequential and high-resolution drug delivery-an urgent issue that remains unresolved. To address this, a hierarchical-targeting antioxidant nanodrug has been developed with a folic acid moiety (HAND) designed for high-resolution drug delivery in AKI treatment. For the first time, HAND enables sequential targeting from the kidney to the most severely damaged proximal tubular epithelial cells (PTECs), ultimately concentrating in the DNA-rich mitochondria and nucleus. As a result, HAND effectively scavenges ROS in situ, protecting both mitochondria and nuclei along with their vital genetic material. This action restores mitochondrial function, mitigates DNA oxidation and fragmentation, reduces apoptosis, and inhibits cGAS/STING-mediated sterile inflammation. Consequently, HAND demonstrates remarkable efficacy in safeguarding injured kidneys during AKI. Overall, this work pioneers a hierarchical, high-resolution antioxidant strategy, providing innovative guidance for the development of AKI therapies.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2411254"},"PeriodicalIF":14.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862629","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

RUNX2 Phase Separation Mediates Long-Range Regulation Between Osteoporosis-Susceptibility Variant and XCR1 to Promote Osteoblast Differentiation.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-20 DOI: 10.1002/advs.202413561

Yan Zhang, Xin-Hao Li, Pai Peng, Zi-Han Qiu, Chen-Xi Di, Xiao-Feng Chen, Nai-Ning Wang, Fei Chen, Yin-Wei He, Zhong-Bo Liu, Fan Zhao, Dong-Li Zhu, Shan-Shan Dong, Shou-Ye Hu, Zhi Yang, Yi-Ping Li, Yan Guo, Tie-Lin Yang

{"title":"RUNX2 Phase Separation Mediates Long-Range Regulation Between Osteoporosis-Susceptibility Variant and XCR1 to Promote Osteoblast Differentiation.","authors":"Yan Zhang, Xin-Hao Li, Pai Peng, Zi-Han Qiu, Chen-Xi Di, Xiao-Feng Chen, Nai-Ning Wang, Fei Chen, Yin-Wei He, Zhong-Bo Liu, Fan Zhao, Dong-Li Zhu, Shan-Shan Dong, Shou-Ye Hu, Zhi Yang, Yi-Ping Li, Yan Guo, Tie-Lin Yang","doi":"10.1002/advs.202413561","DOIUrl":"https://doi.org/10.1002/advs.202413561","url":null,"abstract":"GWASs have identified many loci associated with osteoporosis, but the underlying genetic regulatory mechanisms and the potential drug target need to be explored. Here, a new regulatory mechanism is found that a GWAS intergenic SNP (rs4683184) functions as an enhancer to influence the binding affinity of transcription factor RUNX2, whose phase separation can mediate the long-range chromatin interaction between enhancer and target gene XCR1 (a member of the GPCR family), leading to changes of XCR1 expression and osteoblast differentiation. Bone-targeting AAV of Xcr1 can improve bone formation in osteoporosis mice, suggesting that XCR1 can be a new susceptibility gene for osteoporosis. This study is the first to link non-coding SNP with phase separation, providing a new insight into long-range chromatin regulation mechanisms with susceptibility to complex diseases, and finding a potential target for the development of osteoporosis drugs and corresponding translational research.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2413561"},"PeriodicalIF":14.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862630","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

Synergistic Anticancer Strategy Targeting ECM Stiffness: Integration of Matrix Softening and Mechanical Signal Transduction Blockade in Primary Liver Cancers.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-20 DOI: 10.1002/advs.202403040

Zefeng Shen, Liye Tao, Yali Wang, Yiwei Zhu, Haoyu Pan, Yijun Li, Shi Jiang, Junhao Zheng, Jingwei Cai, Yang Liu, Kainan Lin, Shihao Li, Yifan Tong, Liqing Shangguan, Junjie Xu, Xiao Liang

{"title":"Synergistic Anticancer Strategy Targeting ECM Stiffness: Integration of Matrix Softening and Mechanical Signal Transduction Blockade in Primary Liver Cancers.","authors":"Zefeng Shen, Liye Tao, Yali Wang, Yiwei Zhu, Haoyu Pan, Yijun Li, Shi Jiang, Junhao Zheng, Jingwei Cai, Yang Liu, Kainan Lin, Shihao Li, Yifan Tong, Liqing Shangguan, Junjie Xu, Xiao Liang","doi":"10.1002/advs.202403040","DOIUrl":"https://doi.org/10.1002/advs.202403040","url":null,"abstract":"The development of primary liver cancer (hepatocellular carcinoma [HCC] and intrahepatic cholangiocarcinoma [ICC]) is linked to its physical microenvironment, particularly extracellular matrix (ECM) stiffness. Potential anticancer strategies targeting ECM stiffness include prevention/reversal of the stiffening process and disruption of the response of cancer cells to mechanical signals from ECM. However, each strategy has limitations. Therefore, the authors propose integrating them to maximize their strengths. Compared with HCC, ICC has a stiffer ECM and a worse prognosis. Therefore, ICC is selected to investigate mechanisms underlying the influence of ECM stiffness on cancer progression and application of the integrated anticancer strategy targeting ECM stiffness. In summary, immunofluorescence results for 181 primary liver cancer tissue chips (ICC, n = 91; HCC, n = 90) and analysis of TCGA mRNA-sequencing demonstrate that ECM stiffness can affect phenotypes of primary liver cancers. The YAP1/ABHD11-AS1/STAU2/ZYX/p-YAP1 pathway is a useful entry point for exploration of specific mechanisms of mechanical signal conduction from the ECM in ICC cells and their impact on cancer progression. Moreover, a synergistic anticancer strategy targeting ECM stiffness (ICCM@NPs + siABHD11-AS1@BAPN) is constructed by integrating ECM softening and blocking intracellular mechanical signal transduction in ICC and can provide insights for the treatment of cancers characterized by stiff ECM.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2403040"},"PeriodicalIF":14.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862631","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

Deep Learning-Enabled STEM Imaging for Precise Single-Molecule Identification in Zeolite Structures.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-20 DOI: 10.1002/advs.202408629

Yaotian Yang, Hao Xiong, Zirong Wu, Zhiyao Luo, Xiao Chen, Xiaonan Wang, Fei Wei

{"title":"Deep Learning-Enabled STEM Imaging for Precise Single-Molecule Identification in Zeolite Structures.","authors":"Yaotian Yang, Hao Xiong, Zirong Wu, Zhiyao Luo, Xiao Chen, Xiaonan Wang, Fei Wei","doi":"10.1002/advs.202408629","DOIUrl":"https://doi.org/10.1002/advs.202408629","url":null,"abstract":"Observing chemical reactions in complex structures such as zeolites involves a major challenge in precisely capturing single-molecule behavior at ultra-high spatial resolutions. To address this, a sophisticated deep learning framework tailored has been developed for integrated Differential Phase Contrast Scanning Transmission Electron Microscopy (iDPC-STEM) imaging under low-dose conditions. The framework utilizes a denoising super-resolution model (Denoising Inference Variational Autoencoder Super-Resolution (DIVAESR)) to effectively mitigate shot noise and thereby obtain substantially clearer atomic-resolved iDPC-STEM images. It supports advanced single-molecule detection and analysis, such as conformation matching and elemental clustering, by incorporating object detection and Density Functional Theory (DFT) configurational matching for precise molecular analysis. the model's performance is demonstrated with a significant improvement in standard image quality evaluation metrics including Peak Signal-to-Noise Ratio (PSNR) and Structural Similarity Index Measure (SSIM). The test conducted using synthetic datasets shows its robustness and extended applicability to real iDPC-STEM images, highlighting its potential in elucidating dynamic behaviors of single molecules in real space. This study lays a critical groundwork for the advancement of deep learning applications within electron microscopy, particularly in unraveling chemical dynamics through precise material characterization and analysis.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2408629"},"PeriodicalIF":14.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862628","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

Triboelectric Mat Multimodal Sensing System (TMMSS) Enhanced by Infrared Image Perception for Sleep and Emotion-Relevant Activity Monitoring.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-19 DOI: 10.1002/advs.202407888

Jinlong Xu, Xinge Guo, Zixuan Zhang, Huajun Liu, Chengkuo Lee

{"title":"Triboelectric Mat Multimodal Sensing System (TMMSS) Enhanced by Infrared Image Perception for Sleep and Emotion-Relevant Activity Monitoring.","authors":"Jinlong Xu, Xinge Guo, Zixuan Zhang, Huajun Liu, Chengkuo Lee","doi":"10.1002/advs.202407888","DOIUrl":"https://doi.org/10.1002/advs.202407888","url":null,"abstract":"To implement digital-twin smart home applications, the mat sensing system based on triboelectric sensors is commonly used for gait information collection from daily activities. Yet traditional mat sensing systems often miss upper body motions and fail to adequately project these into the virtual realm, limiting their specific application scenarios. Herein, triboelectric mat multimodal sensing system is designed, enhanced with a commercial infrared imaging sensor, to capture diverse sensory information for sleep and emotion-relevant activity monitoring without compromising privacy. This system generates pixel-based area ratio mappings across the entire mat array, solely based on the integral operation of triboelectric outputs. Additionally, it utilizes multimodal sensory intelligence and deep-learning analytics to detect different sleeping postures and monitor comprehensive sleep behaviors and emotional states associated with daily activities. These behaviors are projected into the metaverse, enhancing virtual interactions. This multimodal sensing system, cost-effective and non-intrusive, serves as a functional interface for diverse digital-twin smart home applications such as healthcare, sports monitoring, and security.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2407888"},"PeriodicalIF":14.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851649","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

Delayed Administration of IGFBP7 Improved Bone Defect Healing via ZO-1 Dependent Vessel Stabilization.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-19 DOI: 10.1002/advs.202406965

Shiyu Sun, Yao Li, Yuman Li, Yuting Niu, Zhewen Hu, Chenyu Deng, Yiming Chen, Bo Hu, Ying Huang, Xuliang Deng

{"title":"Delayed Administration of IGFBP7 Improved Bone Defect Healing via ZO-1 Dependent Vessel Stabilization.","authors":"Shiyu Sun, Yao Li, Yuman Li, Yuting Niu, Zhewen Hu, Chenyu Deng, Yiming Chen, Bo Hu, Ying Huang, Xuliang Deng","doi":"10.1002/advs.202406965","DOIUrl":"https://doi.org/10.1002/advs.202406965","url":null,"abstract":"The vascular response following injury is pivotal for successful bone-defect repair but constitutes a major hurdle in the field of regenerative medicine. Throughout this process, vessel stabilization is crucial to provide an adequate nutrient supply and facilitate efficient waste removal. Therefore, this study investigated whether promoting vascular stabilization improves bone defect repair outcomes. The findings show that insulin-like growth factor-binding protein (IGFBP) 7 exhibits a novel biological function in attenuating vascular permeability and enhancing vascular wall integrity. The potential underlying mechanism involves the up-regulation of insulin-like growth factor 1 receptor (IGF1R) expression by IGFBP7 on endothelial cell membrane, followed by activation of the downstream PI3K/AKT signaling pathway and upregulated expression of the tight junction protein zonula occludens-1 (ZO-1). IGFBP7 delayed administration in mice with cranial defects significantly improved bone defect healing by increasing ZO-1 and CD31 co-localization within vessel walls and optimizing the perfusion function of the final vascular network. Furthermore, the application of the typical tight junction regulator AT1001 effectively promoted ZO-1-dependent vascular stabilization and facilitated bone defect repair. This study presents a new approach to enhance bone defect healing via vascular stabilization-targeted interventions and significantly advances the understanding of the complex interplay between osteogenesis and angiogenesis in bone defect healing.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2406965"},"PeriodicalIF":14.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851635","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

Interfacial Engineering to Fabricate Nanoporous FeMo Bimetallic Nitride for Enhanced Electrochemical Ammonia Synthesis.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-18 DOI: 10.1002/advs.202410805

Bin Fang, Liyuan Zhao, Yanqin Li, Nianliang Yin, Xin Wang, Jutao Jin, Wenlong Wang

{"title":"Interfacial Engineering to Fabricate Nanoporous FeMo Bimetallic Nitride for Enhanced Electrochemical Ammonia Synthesis.","authors":"Bin Fang, Liyuan Zhao, Yanqin Li, Nianliang Yin, Xin Wang, Jutao Jin, Wenlong Wang","doi":"10.1002/advs.202410805","DOIUrl":"https://doi.org/10.1002/advs.202410805","url":null,"abstract":"The electrochemical N2 reduction reaction (NRR) currently represents a green and sustainable approach to ammonia production. However, the further progress of NRR is significantly hampered by poor catalytic activity and selectivity, necessitating the development of efficient and stable electrocatalysts. Herein, a nanoporous Fe-Mo bimetallic nitride (Fe3N-MoN) is synthesized using a molten-salt preparation method. This catalyst demonstrates notable NRR performance, achieving a high NH3 yield rate of 45.1 µg h-1 mg-1 and a Faradaic efficiency (FE) of 26.5% at -0.2 V (vs RHE) under ambient conditions. Detailed experimental studies and density functional theory (DFT) calculations reveal that the fabricated interface between Fe3N and MoN effectively modulates the surface electronic structure of the catalyst. The interface induces an increase in the degree of electron deficiency at the nitrogen-vacancy sites on the catalyst surface, allowing N2 molecules to occupy the nitrogen vacancies more easily, thereby promoting N2 adsorption/activation during the NRR process. Consequently, the Fe3N-MoN catalyst exhibits outstanding NRR activity. The insights gained from fabricating the Fe3N-MoN interface in this work pave the way for further development of interfacial engineering to prepare high-efficient electrocatalyst.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2410805"},"PeriodicalIF":14.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845515","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

Swimming by Spinning: Spinning-Top Type Rotations Regularize Sperm Swimming Into Persistently Progressive Paths in 3D.

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-18 DOI: 10.1002/advs.202406143

Xiaomeng Ren, Hermes Bloomfield-Gadêlha

{"title":"Swimming by Spinning: Spinning-Top Type Rotations Regularize Sperm Swimming Into Persistently Progressive Paths in 3D.","authors":"Xiaomeng Ren, Hermes Bloomfield-Gadêlha","doi":"10.1002/advs.202406143","DOIUrl":"https://doi.org/10.1002/advs.202406143","url":null,"abstract":"Sperm swimming is essential for reproduction, with movement strategies adapted to specific environments. Sperm navigate by modulating the symmetry of their flagellar beating, but how they swim forward with asymmetrical beats remains unclear. Current methods lack the ability to robustly detect the flagellar symmetry state in free-swimming spermatozoa, despite its importance in understanding sperm motility. This study uses numerical simulations to investigate the fluid mechanics of sperm swimming with asymmetrical flagellar beats. Results show that sperm rotation regularizes the swimming motion, allowing persistently progressive swimming even with asymmetrical flagellar beats. Crucially, 3D sperm head orientation, rather than the swimming path, provides critical insight into the flagellar symmetry state. Sperm rotations during swimming closely resemble spinning-top dynamics, with sperm head precession driven by the helical beating of the flagellum. These results may prove essential in future studies on the role of symmetry in microorganisms and artificial swimmers, as body orientation detection has been largely overlooked in favor of swimming path analysis. Altogether, this rotational mechanism provides a reliable solution for forward propulsion and navigation in nature, which would otherwise be challenging for flagella with broken symmetry.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2406143"},"PeriodicalIF":14.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851640","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

Manipulating Magnetic Damping of Fe/GeTe Heterostructures by Band Engineering. 通过带状工程操纵铁/锗碲异质结构的磁阻尼。

IF 14.3 1区材料科学

Advanced Science Pub Date : 2024-12-18 DOI: 10.1002/advs.202411798

Xu Yang, Jia-Wan Li, Yan Li, Liang Qiu, Hao-Pu Xue, Jin Tang, Hai-Feng Du, Rui Sun, Qing-Lin Yang, Jia-Nan Liu, Xiang-Qun Zhang, Wei He, Yusheng Hou, Zhao-Hua Cheng

{"title":"Manipulating Magnetic Damping of Fe/GeTe Heterostructures by Band Engineering.","authors":"Xu Yang, Jia-Wan Li, Yan Li, Liang Qiu, Hao-Pu Xue, Jin Tang, Hai-Feng Du, Rui Sun, Qing-Lin Yang, Jia-Nan Liu, Xiang-Qun Zhang, Wei He, Yusheng Hou, Zhao-Hua Cheng","doi":"10.1002/advs.202411798","DOIUrl":"https://doi.org/10.1002/advs.202411798","url":null,"abstract":"Understanding and manipulating magnetic damping, particularly in magnetic heterostructures, is crucial for fundamental research, versatile engineering, and optimization. Although magnetic damping can be enhanced by the band hybridization between ferromagnetic and nonmagnetic materials at the interface, the contribution of individual subbands on the hybridized bands to magnetic damping is fully unexplored. Here, it is found that magnetic damping αeff is modified by the Fermi level in Fe/GeTe heterostructures via Bi doping. By combining angle-resolved photoemission spectroscopy and density functional theory calculations, the enhancement of damping originated from the strongly hybridized band structures between Fe and the surface Rashba bands of GeTe are unveiled. More interestingly, the Fermi level modulates the density of states (DOS) ratio between the subbands of GeTe and the total DOS of hybridized states, which is directly proportional to the magnetic damping. This work gives an insightful physical understanding of the magnetic damping influenced by the hybridized band structures and opens a novel avenue to manipulate magnetic damping by band engineering.","PeriodicalId":117,"journal":{"name":"Advanced Science","volume":" ","pages":"e2411798"},"PeriodicalIF":14.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845519","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