Applied Physics Letters最新文献_第6页

Promising bulk photovoltaic effect in breathing-kagome lattice Nb3TeX7 (X = I, Cl) monolayers 呼吸-kagome晶格Nb3TeX7 （X = I, Cl）单层中有前途的体光伏效应

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-25 DOI: 10.1063/5.0276972

Zonglun Li, Zhi-Ming Luo, Xudong Shen, Dexiang Gao, Dongmei Hu, Bao Yuan, Chunguang Zhai, Bao-Tian Wang, Le Kang

{"title":"Promising bulk photovoltaic effect in breathing-kagome lattice Nb3TeX7 (X = I, Cl) monolayers","authors":"Zonglun Li, Zhi-Ming Luo, Xudong Shen, Dexiang Gao, Dongmei Hu, Bao Yuan, Chunguang Zhai, Bao-Tian Wang, Le Kang","doi":"10.1063/5.0276972","DOIUrl":"https://doi.org/10.1063/5.0276972","url":null,"abstract":"The breathing-kagome lattice materials, distinguished by their captivating electronic structures alongside ferroelectric, ferromagnetic, and nonlinear optical properties, have stimulated considerable interest. Herein, we showcase the promising bulk photovoltaic effect that mainly stems from the Nb breathing-kagome layer in Nb3TeX7 (X = Cl, I) monolayers. Nb3TeCl7 monolayer and Nb3TeI7 monolayer demonstrate the largest corresponding negative shift currents σyyy of −50 and −41 μA/V2, respectively, and maximum positive values of 45 and 41 μA/V2, respectively. The shift current and bandgap in Nb3TeCl7 monolayer are slightly higher than those in Nb3TeI7 monolayer, while Nb3TeI7 monolayer exhibits more pronounced Rashba spin-splitting behavior. Intriguingly, the shift current σyyy could be further enhanced by employing external strain to tune the breathing-kagome Nb-trimer network, while a concurrent decrease in the bandgap occurred under biaxial compressive strain. These findings indicate that the breathing-kagome lattice monolayers of Nb3TeX7 possess considerable potential as promising candidates for future photoelectric applications.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"36 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144488464","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

Sensitive strain effect on magnetic phase transitions in Sb-doped MnBi4Te7 magnetic topological insulator sb掺杂MnBi4Te7磁性拓扑绝缘体磁相变的敏感应变效应

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-25 DOI: 10.1063/5.0271455

Huihui Zhang, Yu Zhang, Xuqi Li, Hong Xu, Shifei Qi

{"title":"Sensitive strain effect on magnetic phase transitions in Sb-doped MnBi4Te7 magnetic topological insulator","authors":"Huihui Zhang, Yu Zhang, Xuqi Li, Hong Xu, Shifei Qi","doi":"10.1063/5.0271455","DOIUrl":"https://doi.org/10.1063/5.0271455","url":null,"abstract":"Recent experiments have successfully fabricated ferromagnetic topological insulator MnBi4Te7 by Sb doping. However, distinct conclusions regarding magnetic phase transitions at different doping concentrations have emerged, alongside controversial interpretations of ferromagnetic origin. Based on first-principles calculations, we demonstrate that the evolution of magnetism in Sb-doped MnBi4Te7 is not only attributed to Mn–Bi/Sb antisite defects, as observed in some experiments, but is also significantly influenced by strain effects. Furthermore, our results reveal that magnetic phase transition is accompanied by a change from n-type to p-type charge carriers at Sb doping concentrations exceeding 30%, in excellent agreement with experimental observation. Moreover, Sb substitution leads to an obvious difference in the effective mass of charge carriers, which qualitatively coincides with experimentally measured carrier mobility. Additionally, Sb doping results in more delocalized charge carriers due to the relatively weaker Sb–Te bonding. Based on these findings, we further discuss how the enhanced carrier delocalization influences interlayer magnetic coupling, leading to a nonmonotonic evolution of long-range magnetism from antiferromagnetic to ferromagnetic and back to antiferromagnetic phases with increased Sb concentration.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"20 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479417","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

Six-band strong nonreciprocal radiation at small angle of incidence 5.9° by toroidal cylinder arrays 环形圆柱阵列5.9°小入射角下的六波段强非互反辐射

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-25 DOI: 10.1063/5.0273263

Wenkun Peng, Bo Wang

{"title":"Six-band strong nonreciprocal radiation at small angle of incidence 5.9° by toroidal cylinder arrays","authors":"Wenkun Peng, Bo Wang","doi":"10.1063/5.0273263","DOIUrl":"https://doi.org/10.1063/5.0273263","url":null,"abstract":"Nonreciprocal thermal radiation overcomes Kirchhoff's law which requires spectral absorptivity to equal emissivity, establishing a distinct radiative heat transfer mechanism. However, among the previously reported nonreciprocal thermal radiators, research on dual-polarized multi-band systems remains relatively scarce and is limited to large incidence angles, which limits the practical application of nonreciprocal thermal radiators. To address these challenges, we propose a six-band, dual-polarized strong nonreciprocal thermal radiator comprising a silicon-based void ring cylinder periodic array, a magneto-optical material layer (InAs), and a silver (Ag) metal reflector. When the applied magnetic field strength is 2.5 T and the incidence angle is 5.9°, six strong nonreciprocal peaks can be shown with nonreciprocity of more than 80% under transverse electric (TE) polarization and transverse magnetic (TM) polarization. Through the study of coupled mode theory and electromagnetic field distribution, the physical mechanism of the strong nonreciprocity of the device structure in this work is revealed. It is believed that this study of six-band, dual-polarized strong nonreciprocal thermal radiation at small angles of incidence has the practicability of energy harvesting control and thermal radiation.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"17 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479416","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

In situ alloyed zinc–copper layer accelerates Zn ion migration for highly reversible Zn anodes 原位合金锌铜层加速了锌离子在高可逆锌阳极上的迁移

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-25 DOI: 10.1063/5.0275593

Hang Lei, Xincheng Zhou, Zhiheng Chen, Junpeng Xie, Wenbiao Zhang, Zilong Wang, Ding Luo, Jin Cao, Xuelin Yang, Wenjie Mai

{"title":"In situ alloyed zinc–copper layer accelerates Zn ion migration for highly reversible Zn anodes","authors":"Hang Lei, Xincheng Zhou, Zhiheng Chen, Junpeng Xie, Wenbiao Zhang, Zilong Wang, Ding Luo, Jin Cao, Xuelin Yang, Wenjie Mai","doi":"10.1063/5.0275593","DOIUrl":"https://doi.org/10.1063/5.0275593","url":null,"abstract":"Aqueous zinc-ion batteries (AZIBs) have garnered significant attention, but several obstacles associated with zinc anodes impede the advancement of AZIBs. Constructing protective coatings on Zn anodes is a promising strategy to curb zinc dendrite growth and side reactions, yet current techniques remain complex and inefficient. Herein, the in situ alloyed method is employed to generate a CuZn protective interface for a highly reversible Zn metal anode (60CuZn@Zn). Systematic characterization and theoretical calculations have elucidated that the protective layer is likely to effectively suppress the proliferation of zinc dendrites, accelerate the migration of zinc ions, and ameliorate interfacial side reactions. In addition, the optimized coating effectively modulates the interfacial electric field distribution, facilitates uniform nucleation of zinc crystals, and reduces the charge transfer resistance, thereby enhancing the electrochemical performance of the AZIBs. Consequently, the 60CuZn@Zn anode demonstrates an extended cycling life of over 2800 h at 1 mA cm−2/1 mAh cm−2 and maintains prolonged stability exceeding 1200 h even at a high current density of 10 mA cm−2/1 mAh cm−2. This work presents an accessible, cost-effective approach to fabricating protective coatings for engineering highly reversible zinc anode protective layers.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"628 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479572","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

Circular photogalvanic effect at the surface of hydrogenated perovskite oxides 氢化钙钛矿氧化物表面的圆形光电效应

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0276787

Chengjian Li, Ying Li, Guoru Li, Jiajun Guo

引用次数: 0

Discrete V2O5/NCQDs heterogeneous assemblies synergizing built-in fields and confinement for enhanced aqueous zinc ion storage 离散V2O5/NCQDs非均相组件协同内置场和约束增强锌离子水溶液存储

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0278578

Guiling Lu, Tianqi Yong, Yinsong Wang, Yingqiang Yang, Xinyu Li

{"title":"Discrete V2O5/NCQDs heterogeneous assemblies synergizing built-in fields and confinement for enhanced aqueous zinc ion storage","authors":"Guiling Lu, Tianqi Yong, Yinsong Wang, Yingqiang Yang, Xinyu Li","doi":"10.1063/5.0278578","DOIUrl":"https://doi.org/10.1063/5.0278578","url":null,"abstract":"Aqueous zinc-ion batteries show promise for sustainable energy storage but face practical challenges due to sluggish Zn2+ diffusion and irreversible vanadium dissolution in cathode materials. This study proposes an in situ chemical bonding strategy to anchor nitrogen-doped carbon quantum dots (NCQDs) onto V2O5 nanoparticles, forming heterostructured units with built-in electric fields. These units further self-assemble into spherical assemblies (V2O5/NCQDs), which are embedded within a porous graphene aerogel (GA) matrix to construct a V2O5/NCQDs@GA composite cathode with a hierarchical confinement framework. The discrete arrangement of V2O5/NCQDs heterostructured units forms multi-point conductive network and open ion channels, reducing charge transfer resistance and enhancing Zn2+ diffusion. The spatial confinement and concentration gradient effects of GA synergistically suppress vanadium dissolution and mitigate solvent corrosion, enhancing the structural stability of the electrode. Consequently, the V2O5/NCQDs@GA electrode shows excellent rate capability (309 mAh g−1 at 3.0 A g−1) and cycling stability (retaining 268 mAh g−1 after 1000 cycles).","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"104 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479561","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

Sub-micron circuit fabrication on diamond anvils for mesoscopic high-pressure experiments 介观高压实验用金刚石砧亚微米电路的制备

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0253706

Z. R. Rehfuss, K. Zheng, S. L. Gould, K. W. Murch, S. Ran

引用次数: 0

Membrane phononic crystals for high-Qm mechanical defect modes at MHz frequencies in piezoelectric aluminum nitride 压电氮化铝在MHz频率下的高qm机械缺陷模式的膜声子晶体

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0262362

Anastasiia Ciers, Laurentius Radit Nindito, Alexander Jung, Hannes Pfeifer, Armin Dadgar, André Strittmatter, Witlef Wieczorek

{"title":"Membrane phononic crystals for high-Qm mechanical defect modes at MHz frequencies in piezoelectric aluminum nitride","authors":"Anastasiia Ciers, Laurentius Radit Nindito, Alexander Jung, Hannes Pfeifer, Armin Dadgar, André Strittmatter, Witlef Wieczorek","doi":"10.1063/5.0262362","DOIUrl":"https://doi.org/10.1063/5.0262362","url":null,"abstract":"Nanomechanical resonators with exceptionally low dissipation are advancing mechanics-based sensors and quantum technologies. The key for these advances is the engineering of localized phononic modes that are well-isolated from the environment, i.e., that exhibit a high mechanical quality factor, Qm. Membrane phononic crystals fabricated from strained thin films can realize high-Qm single or multiple localized phononic defect modes at MHz frequencies. These defect modes can be efficiently interfaced with out-of-plane light or coupled to a microwave quantum circuit, enabling readout and control of their motion. When membrane phononic crystals are fabricated from a crystalline film, they could offer built-in functionality. We demonstrate a membrane phononic crystal realized in a strained 90 nm thin film of aluminum nitride (AlN), which is a crystalline piezoelectric material. We engineer a high-Qm localized phononic defect mode at 1.8 MHz with a Qm×fm-product of 1.5×1013 Hz at room temperature. In future devices, the built-in piezoelectricity of AlN can be utilized for direct coupling to qubits or in situ tuning of mechanical mode frequencies, defect mode couplings, or acoustic bandgaps, which can be used as building blocks of tunable phononic circuits or low-noise sensors.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"25 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479566","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

Deformation and motion of skyrmion bags driven by surface acoustic wave 表面声波驱动下悬浮袋的变形与运动

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0263722

Shengbin Shi, Yunhong Zhao, Peng Han, Jiajun Sun, Rui Zhu, Jie Wang

{"title":"Deformation and motion of skyrmion bags driven by surface acoustic wave","authors":"Shengbin Shi, Yunhong Zhao, Peng Han, Jiajun Sun, Rui Zhu, Jie Wang","doi":"10.1063/5.0263722","DOIUrl":"https://doi.org/10.1063/5.0263722","url":null,"abstract":"Skyrmion bags are stable spin textured topologies with arbitrary topological charges, and have the potential to become new carriers in racetrack memory. After the discovery of skyrmion bags, the injection and driving methods of a single skyrmion are gradually applied to the manipulation of skyrmion bags. However, traditional methods, including spin current, magnetic anisotropic gradient, and spin waves generated by microwave fields, inevitably bring problems of high energy consumption and difficulty in miniaturization. With the development of strain electronics, acoustic waves have been widely used to manipulate magnetic topologies. Here, we numerically investigate the dynamical characteristic of skyrmion bags driven by surface acoustic waves. The results show that material damping and acoustic wave amplitude and frequency have a great influence on the skyrmion bag. With decrease in damping, the skyrmion bags move gradually faster. Also, increase in amplitude or frequency can generate similar effect on the velocity of skyrmion bags. Unlike acoustic wave-driven single skyrmions, the strong magnetoelastic coupling effect in the ferromagnetic film and the rich spin texture of skyrmion bags induce deformation in the skyrmion, along with a 38% increase in its velocity. Further, the deformation of the skyrmion is a combined effect of in situ rotation and breath caused by surface acoustic waves. This work demonstrates that the surface acoustic wave can be used to drive skyrmion bags, which offers potential applications for diverse storage of information based on the skyrmion bags in the future.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"52 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479565","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

Quantum dots solar cells under mimic high altitude platform satellites environments 模拟高空平台卫星环境下的量子点太阳能电池

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-24 DOI: 10.1063/5.0278791

Ram Datt, Xin Wen, Xiaobo Ding, Zeke Liu, Wanli Ma, Wing Chung Tsoi

{"title":"Quantum dots solar cells under mimic high altitude platform satellites environments","authors":"Ram Datt, Xin Wen, Xiaobo Ding, Zeke Liu, Wanli Ma, Wing Chung Tsoi","doi":"10.1063/5.0278791","DOIUrl":"https://doi.org/10.1063/5.0278791","url":null,"abstract":"Quantum dot solar cells are solution-processable, lightweight, and low-cost, and their long-term stability makes them attractive to explore for aerospace applications. In this work, we have studied lead sulfide (PbS) colloidal quantum dot solar cells (CQDSCs) using three different types of hole transport layer combinations, such as PbS-MPA/PbS-MPA (PbS-MPA), P3HT/PTAA (P3HT), and PBDB-T/MoO3(PBDB-T), under mimic working environmental conditions for high altitude platform satellites (HAPS). It includes ultraviolet rich solar irradiation (AM0), low temperature conditions (+10 to −20 °C), and low pressure. The thermal cycling (considering change in temperature at day–night) measurements were also conducted. The device performance under a broad range of temperatures from +80 to −100 °C was also included. The devices delivered power conversion efficiency (PCE) of 9.46 (8.41), 9.68 (7.86), and 11.77 (10.75)% for PbS-MPA, P3HT, and PBDB-T devices under AM1.5G(AM0), respectively. PbS-MPA devices maintain the PCE and slightly improve their performance under low temperatures (from 0 down to −100 °C). Meanwhile, the P3HT and PBDB-T-based CQDSCs devices started to decline in PCE significantly from −40 and +10 °C, respectively. Furthermore, PbS-MPA devices show excellent thermal cycling stability, making them attractive for further exploration for aerospace applications.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"26 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479415","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