Applied Physics Letters最新文献_第4页

Straintronic nanomagnetic computing 应变电子纳米磁计算

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0288178

Md Mahadi Rajib, Shouvik Sarker, Dhritiman Bhattacharya, Jayasimha Atulasimha

引用次数: 0

Control of ultrafast excitonic shift current-induced THz emission efficiency of layered single-crystalline MoS2 层状单晶MoS2超快激子位移电流诱导太赫兹发射效率的控制

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0313435

Neetesh Dhakar, Sunil Kumar

引用次数: 0

Observation of anomalous exciton-polariton bands in (PEA)2PbI4 perovskite based microcavity at room temperature （PEA）2PbI4钙钛矿微腔室温下异常激子-极化子带的观察

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0323218

Chunzi Xing, Xiaokun Zhai, Peilin Wang, Chenxi Yang, Jiaxiang Mu, Xinmiao Yang, Yuan Ren, Yu Li, Yao Li, Dongxue Wang, Xianxiong He, Yong Zhang, Haitao Dai, Liefeng Feng, Tingge Gao

引用次数: 0

Interfacial Sr diffusion stabilized (Ca,Sr)TaO3 thin film and its semiconducting behaviors 界面Sr扩散稳定（Ca,Sr）陶3薄膜及其半导体行为

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0323848

Guangdong Nie, Guanghui Han, Shengpu Huang, Yiqiao Yan, Huiyin Wu, Deshun Wang, Kangxi Liu, Hao Ding, Fangdong Tang, Licong Peng, Dashuai Ma, Young Sun, Deshun Hong

{"title":"Interfacial Sr diffusion stabilized (Ca,Sr)TaO3 thin film and its semiconducting behaviors","authors":"Guangdong Nie, Guanghui Han, Shengpu Huang, Yiqiao Yan, Huiyin Wu, Deshun Wang, Kangxi Liu, Hao Ding, Fangdong Tang, Licong Peng, Dashuai Ma, Young Sun, Deshun Hong","doi":"10.1063/5.0323848","DOIUrl":"https://doi.org/10.1063/5.0323848","url":null,"abstract":"Perovskite-structured materials host enormous phases such as superconductivity, ferromagnetism, and ferroelectricity, which largely rely on the states of transition metal octahedra. Compared to the extensively studied 3d-orbital perovskite, heavier elements (such as Ta, W, and Ir) with 5d orbitals are of great interest due to their stronger spin–orbital coupling related physics. However, due to the difficulty in synthesis, research on 5d-element perovskite is quite limited. Here, we synthesized tantalate perovskite (Ca,Sr)TaO3 films by pulsed laser deposition. Structural characterizations indicate that the films are epitaxial to the substrates. By tuning the growth parameters such as oxygen partial pressure and growth temperatures, the carrier density can be tuned from ∼1014 to ∼1016 cm−2 while maintaining semiconducting behavior. We found that the interfacial Sr diffusion from the substrate to the film is critical for its structural stabilization. Analogous to KTaO3, our synthesis of (Ca,Sr)TaO3 perovskite films offers a new platform for the study of interfacial physics.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"22 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681626","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

Chain length effect of large organic cations on the amplified spontaneous emission and lasing properties of quasi-2D Dion–Jacobson perovskites 大有机阳离子链长对准二维Dion-Jacobson钙钛矿放大自发发射和激光性质的影响

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0318927

Yixiao Dong, Dongyang Wang, Mengyao Li, Zhongpo Zhou, Chaochao Qin, Ziyu Wang

{"title":"Chain length effect of large organic cations on the amplified spontaneous emission and lasing properties of quasi-2D Dion–Jacobson perovskites","authors":"Yixiao Dong, Dongyang Wang, Mengyao Li, Zhongpo Zhou, Chaochao Qin, Ziyu Wang","doi":"10.1063/5.0318927","DOIUrl":"https://doi.org/10.1063/5.0318927","url":null,"abstract":"Quasi-two-dimensional (quasi-2D) Dion–Jacobson (DJ) perovskites modified with large organic cations exhibit superior optoelectronic properties and stability compared to their three-dimensional (3D) counterparts, making them promising for light-emitting diodes and lasing applications. While diammonium cations with linear chain structures are preferred due to their hydrogen-bonding capability and enhanced structural stability, the effect of cation chain length remains insufficiently understood. Here, we systematically investigate three diammonium spacers with varying chain lengths. Ultrafast spectroscopy reveals that longer-chain cations promote pronounced phase separation, which facilitates the formation of a high-quality n=2 phase, uniform phase distribution, efficient energy transfer, and suppressed non-radiative recombination. These effects collectively reduce the amplified spontaneous emission threshold, from 41.94 μJ/cm2 (EDA, short-chain) and 29.86 μJ/cm2 (BDA, medium-chain) to an ultralow 7.67 μJ/cm2 (PentDA, long-chain). Using this optimized gain medium, we demonstrate a single-mode vertical-cavity laser with a threshold of 6.75 μJ/cm2, a narrow linewidth of 0.49 nm, and a high-quality factor of 1093.8. Conversely, short-chain cations lead to weak phase separation and an insufficient n=2 phase content, resulting in film transient absorption characteristics dominated by excited-state absorption. This study clarifies the critical role of cation chain length in tuning the phase behavior and optical gain of quasi-2D DJ perovskites, providing guidance for their use in low-threshold laser devices.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681630","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

ZIF-67-preloaded bacterial cellulose aerogel with strong Lewis acid–base interactions fabricating homogeneous solid composite electrolyte for lithium metal batteries 具有强刘易斯酸碱相互作用的zif -67预载细菌纤维素气凝胶制备锂金属电池均质固体复合电解质

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0320941

Yifan Ma, Hai Lu, Yitian Ma, Jinhaochong Wang, Yaxin Kong, Zishan Feng, Lei Zhang, Yan Yuan

{"title":"ZIF-67-preloaded bacterial cellulose aerogel with strong Lewis acid–base interactions fabricating homogeneous solid composite electrolyte for lithium metal batteries","authors":"Yifan Ma, Hai Lu, Yitian Ma, Jinhaochong Wang, Yaxin Kong, Zishan Feng, Lei Zhang, Yan Yuan","doi":"10.1063/5.0320941","DOIUrl":"https://doi.org/10.1063/5.0320941","url":null,"abstract":"Low ionic conductivity of solid electrolyte and unstable Li/solid electrolyte interface greatly restrict the development of solid-state lithium metal batteries (LMBs). In this study, a novel design strategy of solid composite electrolyte (SCE) was proposed by utilizing a ZIF-67-preloaded bacterial cellulose aerogel as a rigid scaffold. The as-prepared bacterial cellulose aerogel via freeze-drying route is highly porous with large quantities of accessible polar sites, which is beneficial to not only uniform growth of ZIF-67 nanoparticles on it owing to strong and adequate Lewis acid–base interaction between them, but also full accommodation of polymer matrix deriving from in situ polymerization of 1,3-dioxolane at the assistance of ZIF-67 “molecule bridge.” The well-distributed ZIF-67 with ordered channels further promotes Li+ migration and uniforms Li+ flux. These merits endow the SCE with continuous, rapid Li+ transport pathway as well as rigid-flexible coupled framework, thereby achieving highly reversible Li plating/stripping process and superior cycle capability of the LMBs.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"45 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681675","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

Advanced monolithic 2D multilayer Laue lens (MLL) optics for hard x-ray nanofocusing and nanotomography 用于硬x射线纳米聚焦和纳米层析成像的先进单片二维多层劳厄透镜（MLL）光学

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0318272

Wei Xu, Zirui Gao, Weihe Xu, Nathalie Bouet, Juan Zhou, Hanfei Yan, Xiaojing Huang, Ming Lu, Mingyuan Ge, Yong S. Chu, Evgeny Nazaretski

引用次数: 0

On-chip FSR manipulation of optical frequency combs with a four-wave mixing time lens 片上FSR操作的光学频率梳与四波混频时间透镜

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0325808

He Huang, Chen Liu, Yaoshuai Li, Chi Zhang, Bing Wang, Xinliang Zhang

{"title":"On-chip FSR manipulation of optical frequency combs with a four-wave mixing time lens","authors":"He Huang, Chen Liu, Yaoshuai Li, Chi Zhang, Bing Wang, Xinliang Zhang","doi":"10.1063/5.0325808","DOIUrl":"https://doi.org/10.1063/5.0325808","url":null,"abstract":"Precise control of the free spectral range (FSR) in high-repetition-rate (e.g., 100 GHz) optical frequency combs is critical for advanced applications but remains technically challenging. The frequency domain Talbot effect has emerged as a predominant mechanism for such spectral reconfiguration. Conventional Talbot-based methods face distinct limitations: electro-optic modulation is constrained by bandwidth, while cross-phase modulation demands complex pulse shaping. Furthermore, traditional four-wave mixing (FWM) schemes suffer from bulky footprints and instability due to their reliance on long fibers. Here, we demonstrate on-chip spectral densification by integrating a silicon nitride chirped waveguide Bragg grating (CWBG) with an FWM time lens. Replacing the kilometer-scale fibers used in standard setups, our CWBG generates the requisite large group delay within a centimeter-scale footprint. This compact chip-based dispersion module significantly reduces the long-fiber footprint and mitigates environmental instability and higher-order dispersion distortions. We experimentally compressed the FSR of a 100-GHz comb by integer factors (N = 2, 3, 4), thereby validating a robust, scalable platform for miniature spectral reconstruction in microwave photonics.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"9 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681629","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

Polyhydroxy organic molecule-cross-linked polyvinylidene fluoride with enhanced breakdown strength and energy density 具有增强击穿强度和能量密度的多羟基有机分子交联聚偏氟乙烯

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0320313

Hao Ren, Xiaoyi Zhang, Shuxuan Li, Zhonglin Wang, Zhi Li, Juntao Zhou, Xin Zhen, Xin Zhang

{"title":"Polyhydroxy organic molecule-cross-linked polyvinylidene fluoride with enhanced breakdown strength and energy density","authors":"Hao Ren, Xiaoyi Zhang, Shuxuan Li, Zhonglin Wang, Zhi Li, Juntao Zhou, Xin Zhen, Xin Zhang","doi":"10.1063/5.0320313","DOIUrl":"https://doi.org/10.1063/5.0320313","url":null,"abstract":"Polyvinylidene fluoride (PVDF) has been extensively studied for dielectric energy storage applications owing to its excellent dielectric properties. There remains a persistent demand to enhance its breakdown strength and achieve higher energy storage density. In this work, a hydrogen-bonding cross-linking strategy is demonstrated to effectively enhance the breakdown strength and energy storage performance of PVDF. Tris(hydroxymethyl)nitromethane (THNM), containing multiple hydroxyl groups, was employed as a cross-linking agent to form multiple hydrogen bonds with the C–F groups in PVDF chains via a facile solution-casting process. The establishment of a hydrogen-bonding cross-linked network significantly enhances the mechanical strength and introduces charge traps into the PVDF matrix, thereby increasing the breakdown strength from 572 MV/m for the pristine PVDF film to 744 MV/m for the THNM-cross-linked-PVDF film (T-c-PVDF). Consequently, the T-c-PVDF film achieves a high energy storage density of 21.83 J/cm3, representing a 150% improvement over the pure PVDF film, while maintaining a charge–discharge efficiency exceeding 70%, and the energy storage performance stands out among PVDF-based dielectric materials from state-of-the-art works. This work highlights the significant potential of constructing a hydrogen-bonding cross-linked network within dielectric polymers in enhancing their breakdown strength and energy storage performance.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"41 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681632","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

Performance improvement of NiO/β-Ga2O3 heterojunction diodes using ultrathin amorphous BN interfacial layer 利用超薄非晶BN界面层改善NiO/β-Ga2O3异质结二极管的性能

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2026-04-13 DOI: 10.1063/5.0321156

Dongbin Kim, Jongsu Baek, Daehyun Kang, Dahee Seo, Wookyung Jeon, Youngkwan Cho, Hyoung Woo Kim, Myunghun Shin, Yohan Yoon, Byung Jin Cho

引用次数: 0