Applied Physics Letters最新文献_第5页

Gallium nitride-based resonant tunneling diode oscillators 基于氮化镓的谐振隧道二极管振荡器

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-10 DOI: 10.1063/5.0225312

Masahiro Murayama, Hisayoshi Motobayashi, Yukio Hoshina, Miwako Shoji, Yoshiro Takiguchi, Hiroyuki Miyahara, Takahiro Koyama, Noriyuki Futagawa

引用次数: 0

A perspective on magnetic field-enhanced electrocatalytic water splitting 磁场增强型电催化水分离透视

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-10 DOI: 10.1063/5.0229187

Yuanyuan Zhang, Mengxin Chen, Ji Chen, Mingyi Zhang, Ping Xu

引用次数: 0

FeS2/SnS2@C with mosaic-like heterointerface as robust sodium anode 具有镶嵌式异质表面的 FeS2/SnS2@C 可用作坚固的钠阳极

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-10 DOI: 10.1063/5.0226473

Miaoxin Di, Tenglong Miao, Zhenqi Song, Suhua Chen, Ying Bai

{"title":"FeS2/SnS2@C with mosaic-like heterointerface as robust sodium anode","authors":"Miaoxin Di, Tenglong Miao, Zhenqi Song, Suhua Chen, Ying Bai","doi":"10.1063/5.0226473","DOIUrl":"https://doi.org/10.1063/5.0226473","url":null,"abstract":"Sodium-ion batteries (SIBs) have been widely researched due to their abundant resource and inherent safety. However, the major challenge for further commercialization of SIBs is the absence of low-priced anode electrodes with high reversible capacity and durability. Herein, a hierarchical heterogeneous structure of FeS2/SnS2@C nanocubes with rich two-dimensional mosaic-like heterointerface and N/S co-doped carbon wrapping is constructed and synthesized, to achieve ultrahigh reversible capacity and long cycling stability as anode of SIBs. Combining x-ray photoelectron spectroscopy, ion diffusion kinetic analysis, and in situ x-ray diffraction, the exquisite hierarchical heterogeneous structure of FeS2/SnS2@C could promote charge/electrons transfer and accelerate ion diffusion kinetics. As expected, the FeS2/SnS2@C anode shows superior reversible capacity (867.5 mA h g−1 at 0.1 A g−1), good rate performance (718.9 mA h g−1 at 5.0 A g−1), and long cycle stability (738.0 mA h g−1 after 1200 cycles at 5.0 A g−1) with Na metal as counter electrode. This work proves that the effectiveness of heterojunction interfaces for promoting Na+ diffusion is highlighted by such capabilities.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142166394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective control of magnetism and transport properties of monolayer WV2N4 with two magnetic atomic layers and its van der Waals heterostructure 有效控制具有两个磁性原子层的单层 WV2N4 及其范德华异质结构的磁性和传输特性

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-10 DOI: 10.1063/5.0217334

Xiaoyan Guo, Xiaolin Zhang, Yu Zhu, Yuheng Liu, Xiufeng Han, Yu Yan

{"title":"Effective control of magnetism and transport properties of monolayer WV2N4 with two magnetic atomic layers and its van der Waals heterostructure","authors":"Xiaoyan Guo, Xiaolin Zhang, Yu Zhu, Yuheng Liu, Xiufeng Han, Yu Yan","doi":"10.1063/5.0217334","DOIUrl":"https://doi.org/10.1063/5.0217334","url":null,"abstract":"The large magneto-resistance (MR) effect produced by electric control of the magnetic state for van der Waals (vdW) heterostructures composed of vdW intrinsic magnets holds great significance for low-dissipation spintronic devices. Our first-principles calculations reveal that the proposed monolayer WV2N4 is a ferromagnetic (FM) metal with two magnetic V atomic layers, and the interlayer magnetic coupling between two V atomic layers can be switched from FM to antiferromagnetic coupling by applying a small compressive strain. Interestingly, a large MR ratio of 253% is achieved in the proposed graphite/monolayer WV2N4/graphite vdW heterostructure using a −1.5% compressive strain. Combining the strain-induced change in magnetism of monolayer WV2N4 and the graphite/monolayer WV2N4/graphite vdW heterostructure with the inverse piezoelectricity of piezoelectric materials, a feasible strategy is proposed to achieve electric control of the interlayer magnetic coupling of monolayer WV2N4 in the graphite/monolayer WV2N4/graphite vdW heterostructure clamped by piezoelectric materials by utilizing the inverse piezoelectricity, thereby generating a large MR ratio in the graphite/monolayer WV2N4/graphite vdW heterostructure clamped by the piezoelectric material. Our work presents a promising avenue for developing energy-efficient spintronic devices.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142166392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of orbital hybridization on spin-polarized electronic transport through Ni-MAPbI3 interfaces 轨道杂化对通过 Ni-MAPbI3 界面的自旋极化电子传输的影响

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-10 DOI: 10.1063/5.0222322

Xiangpeng Zhang, Wei Li, Yang Li, Linze Jiang, Xixiang Zhu, Haomiao Yu, Jinpeng Li, Yumeng Shi, Ding Yi, Kai Wang

{"title":"Impact of orbital hybridization on spin-polarized electronic transport through Ni-MAPbI3 interfaces","authors":"Xiangpeng Zhang, Wei Li, Yang Li, Linze Jiang, Xixiang Zhu, Haomiao Yu, Jinpeng Li, Yumeng Shi, Ding Yi, Kai Wang","doi":"10.1063/5.0222322","DOIUrl":"https://doi.org/10.1063/5.0222322","url":null,"abstract":"The solution-processed methylammonium lead tri-iodine (MAPbI3), with long spin lifetimes and large spin diffusion lengths, has merit for developing stable perovskite spin valves (PeSV) with low saturation fields. By far, it remains challenging to avoid ill-defined ferromagnet-MAPbI3 interfaces during device fabrications using solution methods and to quantify the hybridized interfacial electronic and magnetic structures. Herein, an annealing-free method was developed for the fabrication of MAPbI3 based PeSV. In comparison to a thermally annealed device, an improved room temperature magnetoresistance (MR) was achieved. We found remarkable interfacial contributions to anisotropic magnetoresistance and MR. The first-principles calculation was further adopted to quantify the interfacial spin and orbital moments. Our results suggest that the orbital hybridization and the spin transfer are remarkable for the formation of the spin-dependent interfacial density of states. It consequently affects magnetic switching behaviors. This study holds an exceptionally important role for a deep understanding of the spin-polarized electronic transport through the Ni-MAPbI3 hybridized interface.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142166393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low detection limit of uric acid based on Prussian blue-enhanced photothermal effect with microfiber knot resonator 基于普鲁士蓝增强光热效应和超细纤维结谐振器的尿酸低检测限技术

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-09 DOI: 10.1063/5.0224050

Yangyuan Zhang, Yangbo Bai, Yinping Miao, Xuanyi Chen, Zhuoyang Han, Jianquan Yao

{"title":"Low detection limit of uric acid based on Prussian blue-enhanced photothermal effect with microfiber knot resonator","authors":"Yangyuan Zhang, Yangbo Bai, Yinping Miao, Xuanyi Chen, Zhuoyang Han, Jianquan Yao","doi":"10.1063/5.0224050","DOIUrl":"https://doi.org/10.1063/5.0224050","url":null,"abstract":"The human serum uric acid (UA) level is a crucial indicator for diagnosing dementia in middle-aged and elderly individuals, with decreased levels being expressed in patients. Therefore, developing a high-performance sensor for online uric acid detection is of significant research interest. Herein, a microfiber knot resonator (MKR) sensor for quantitative detection of UA levels is reported. Combining polydimethylsiloxane (PDMS) with an adiabatic MKR, the specificity of UA detection in serum is improved using the photothermal effect of Prussian blue-enhanced uricase reaction. During the sensor operation, UA generates the photothermal effect under 650 nm laser irradiation, causing the PDMS film to expand with heat absorption, thereby shifting the resonance spectrum of the PDMS-MKR sensor. Experimental results demonstrate a sensitivity of 0.0559 nm/(μmol/L) within a UA concentration range of 40–120 μmol/L and a detection limit as low as 0.3578 μmol/L. The proposed sensor shows potential applications in clinical point-of-care early diagnosis and prognosis of dementia due to its specificity, fast detection speed, robustness, and high integration.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142160947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A-scan fluorescence microscopy for rapid cross-sectional imaging 用于快速横截面成像的 A 扫描荧光显微镜

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-09 DOI: 10.1063/5.0215650

Varun Kumar, Yao Tian, David L. Becker, Quan Liu

{"title":"A-scan fluorescence microscopy for rapid cross-sectional imaging","authors":"Varun Kumar, Yao Tian, David L. Becker, Quan Liu","doi":"10.1063/5.0215650","DOIUrl":"https://doi.org/10.1063/5.0215650","url":null,"abstract":"This paper presents a microscopy technique that can perform snapshot depth resolved optical imaging in the same manner as A-scan in ultrasound imaging and optical coherence tomography. In this technique, a laser line along the axial dimension is used to illuminate a sample to create a fluorescent line object. By transforming the line object along the axial dimension (Z) to a ring image on the lateral dimensions (X-Y) using a full cone mirror, common optics can be used to relay and acquire the ring image precisely. Then, by converting half of the ring image back to a line image using a half cone mirror, the opening side of the half cone mirror allows the line image, which contains the full depth resolved information of the line object, to be taken in one snapshot. This eliminates the requirement of axial scanning in traditional depth resolved imaging techniques such as confocal microscopy to obtain the same information. The technique is demonstrated by imaging fluorescent microspheres of different diameters. This technique offers a simple alternative to traditional depth resolved imaging techniques such as confocal microscopy and light sheet microscopy. It is particularly useful in imaging samples with multiple layers in which multiple A-scans or a few B-scans are sufficient to represent the entire sample.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142161076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical atompilz: Propagation-invariant strongly longitudinally polarized toroidal pulses 光学atompilz：传播不变的强纵向极化环形脉冲

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-09 DOI: 10.1063/5.0218686

Ren Wang, Ding-Tao Yang, Tao Xin, Shuai Shi, Bing-Zhong Wang, Yijie Shen

引用次数: 0

Thermodynamic potential construction and biaxial stress analysis of K0.4Na0.6NbO3 single crystals K0.4Na0.6NbO3 单晶的热力学势构造和双轴应力分析

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-09 DOI: 10.1063/5.0223407

Mingxuan Liu, Chengpeng Hu, Xiangda Meng, Xuejie Sun, Yao Zhang, Bohan Xing, Ming Qiu, Yining Dong, Song Jin, Hao Tian

{"title":"Thermodynamic potential construction and biaxial stress analysis of K0.4Na0.6NbO3 single crystals","authors":"Mingxuan Liu, Chengpeng Hu, Xiangda Meng, Xuejie Sun, Yao Zhang, Bohan Xing, Ming Qiu, Yining Dong, Song Jin, Hao Tian","doi":"10.1063/5.0223407","DOIUrl":"https://doi.org/10.1063/5.0223407","url":null,"abstract":"The macroscopic properties of piezoelectric materials can be profoundly influenced by stress. In this research, thermodynamic potential parameters of K0.4Na0.6NbO3 (KNN) single crystals have been experimentally quantified to assess the effects of stress. Leveraging the Landau thermodynamic potential theory, it has been identified that the application of biaxial tensile stress causes a significant elevation in both the piezoelectric property and phase transition temperature in KNN crystals. This transition remarkably extends their working range and improves the material's applicated potential. The coherence between these computational outcomes and experimental data—from the strategic growth of KNN single crystals with internal stress—underscores the reliability of our findings (dielectric constant from 213 to 1274, TO-T from 180 to 234 °C). Additionally, theoretical calculation predicts a potential enhancement in the piezoelectric capabilities of KNN single crystals. This study provides valuable insights for the growth of high-quality piezoelectric crystals and further promotes the application of lead-free piezoelectric materials.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142160982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanomembrane blazed grating coupler for vertical fiber-chip interface 用于垂直光纤芯片接口的纳米膜炽热光栅耦合器

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2024-09-09 DOI: 10.1063/5.0223504

Xingyu Liu, Rongxiang Guo, Shujiao Zhang, Zunyue Zhang, Jiaqi Wang, Tiegen Liu, Zhenzhou Cheng

{"title":"Nanomembrane blazed grating coupler for vertical fiber-chip interface","authors":"Xingyu Liu, Rongxiang Guo, Shujiao Zhang, Zunyue Zhang, Jiaqi Wang, Tiegen Liu, Zhenzhou Cheng","doi":"10.1063/5.0223504","DOIUrl":"https://doi.org/10.1063/5.0223504","url":null,"abstract":"Mid-infrared (mid-IR) silicon photonics holds promising applications for the Internet of Things, LiDAR, and optical communications. Perfectly vertical grating couplers are superior mid-IR light coupling techniques, featuring ease of packaging, positioning flexibility, and mass production scalability. However, high-efficiency mid-IR perfectly vertical grating couplers still need to be developed due to the difficulties of efficiently engineering grating directionality and diffracted light at long wavelengths. In this paper, we present a mid-IR nanomembrane blazed grating coupler with segmented structure engineering based on a standard multi-project wafer service. The method is based on exploring the improvement of the grating directionality and modal overlap by combining grating units with different structures and thicknesses. Experimental results showcase a maximum coupling efficiency of −4.4 dB with a 3-dB bandwidth of ∼70 nm at 2100 nm wavelengths. This study contributes to the strategy of designing exceptional grating couplers with multiple functional units, paving the way for developing mid-IR photonic integrated circuits based on silicon photonics foundries.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142160984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0