APL Materials最新文献

Dissolvable photovoltaic cells on hydrogel 水凝胶上的可溶解光伏电池

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0197820

Benxuan Li, Shijie Zhan, Zhe Li, Wenlong Ming, Gehan A. J. Amaratunga, Bo Hou

引用次数: 0

A compact quad-square negative-index metamaterial: Design, simulation, and experimental validation for microwave applications 紧凑型四方负指数超材料：微波应用的设计、模拟和实验验证

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0204501

Muhammad Amir Khalil, Wong Hin Yong, Ahasanul Hoque, M. Islam, Lo Yew Chiong, Cham Chin Leei, Ahmed Alzamil, Mohammad Tariqul Islam

{"title":"A compact quad-square negative-index metamaterial: Design, simulation, and experimental validation for microwave applications","authors":"Muhammad Amir Khalil, Wong Hin Yong, Ahasanul Hoque, M. Islam, Lo Yew Chiong, Cham Chin Leei, Ahmed Alzamil, Mohammad Tariqul Islam","doi":"10.1063/5.0204501","DOIUrl":"https://doi.org/10.1063/5.0204501","url":null,"abstract":"This research provides a detailed explanation of the design, simulation, and experimental of quad-square metamaterial-based negative-index unit cells for S-band applications. The Computer Simulation Technology 2022 licensee version was utilized to design and obtain numerical results for the unit cell. The proposed unit cell for the metamaterial has dimensions of 5 × 5 × 1.57 mm3. The substrate chosen was FR-4, resulting in a substantial effective medium ratio value of 19.07. A series of systematic parametric studies were conducted to optimize the quad square metamaterial structure. Key parameters, such as substrate types, unit cell arrays, thicknesses of substrate, and split gaps, were varied to determine their impact on the structure. The validated equivalent circuit result was compared to the simulated results, showing a significant agreement. The demonstrated correlation between simulation and experimental data highlights the dependability of the proposed quad-square metamaterial, positioning it as a viable option for a range of electromagnetic applications, such as communication systems, sensors, and imaging devices.","PeriodicalId":504659,"journal":{"name":"APL Materials","volume":"28 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141276193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiferroic neuromorphic computation devices 多铁芯神经形态计算设备

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0216849

Guangming Lu, E. Salje

引用次数: 0

Professor Sir Anthony K. Cheetham: A half-century of transformative materials science 安东尼-K-希瑟姆爵士教授半个世纪的变革性材料科学

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0214545

B. Lotsch, Jingwei Hou, Efrain E. Rodriguez, Wei Li

引用次数: 0

Investigation of annealing temperature dependent sub-cycling behavior for HfZrOx-based ferroelectric capacitor 基于 HfZrOx 的铁电电容器随退火温度变化的次循环行为研究

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0208118

Yu-Cheng Kao, Hao-Kai Peng, Sheng-Wei Hsiao, Kuo-An Wu, Chia-Ming Liu, Sheng-Yen Zheng, Yung-Hsien Wu, Pin-Jiun Wu

{"title":"Investigation of annealing temperature dependent sub-cycling behavior for HfZrOx-based ferroelectric capacitor","authors":"Yu-Cheng Kao, Hao-Kai Peng, Sheng-Wei Hsiao, Kuo-An Wu, Chia-Ming Liu, Sheng-Yen Zheng, Yung-Hsien Wu, Pin-Jiun Wu","doi":"10.1063/5.0208118","DOIUrl":"https://doi.org/10.1063/5.0208118","url":null,"abstract":"Ferroelectric HfO2 thin film has been widely explored due to its superior characteristics, such as high switching speed, scalability, and long data retention. However, it still faces challenges in achieving good stability due to the wake-up and split-up effects. In this study, the sub-cycling behavior of Hf0.5Zr0.5O2-based ferroelectric capacitors (FeCaps) with various annealing temperatures is investigated. Our results suggest that the FeCaps with higher annealing temperatures demonstrate an increased resistance to the split-up effect and exhibit less distorted hysteresis loops compared to their lower-temperature counterparts. Symmetrical sub-cycling reveals pronounced current split-up and diminished switching current peaks in the FeCaps with lower annealing temperatures, whereas those annealed at higher temperatures show minimal current split-up and enhanced performance. Asymmetrical sub-cycling shows that lower annealing temperatures cause local domain pinning, while higher temperatures result in imprint-like behavior. Synchrotron-based extended x-ray absorption fine structure and hard x-ray photoelectron spectroscopy analyses reveal the potential of nitrogen doping in HfZrOx under high-temperature annealing processes, forming the Hf–N species to mitigate the amount of charged oxygen vacancy (VO2+) in the interfacial region. This study elucidates the relationship between VO2+ distribution and the split-up effect during sub-cycling, providing critical insights for enhancing the sub-cycling performance and stability of HfO2-based devices.","PeriodicalId":504659,"journal":{"name":"APL Materials","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141053501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of low dimensional nanomaterials by pulsed laser ablation in liquid 在液体中通过脉冲激光烧蚀合成低维纳米材料

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0199104

Fan Ye, Kevin P. Musselman

{"title":"Synthesis of low dimensional nanomaterials by pulsed laser ablation in liquid","authors":"Fan Ye, Kevin P. Musselman","doi":"10.1063/5.0199104","DOIUrl":"https://doi.org/10.1063/5.0199104","url":null,"abstract":"With the increasing application of functional nanomaterials in numerous fields, considerable effort has been devoted to exploring simple and efficient methods for their synthesis. Pulsed laser ablation in liquid (PLAL) is one such novel technique for producing colloidal nanomaterials. It is simple to setup, easy to operate, and can be carried out at room temperature and under atmosphere. This method employs a pulsed laser beam to ablate bulk targets or powders within different liquids, thereby creating colloidal nanomaterials. As a result, it holds significant promise for scalable processing. However, most prior research on PLAL has focused on the synthesis of larger spherical nanoparticles, even though low-dimensional nanomaterials, including zero-dimensional quantum dots, one-dimensional nanowires and nanotubes, and two-dimensional nanosheets and nanobelts, find more usage in various applications, such as optoelectronic devices, catalysis, and biomedicine. In the PLAL process, the high-intensity laser pulses not only fragment the illuminated solids to produce nanomaterials but also interact with liquid molecules, generating multiple reactive ions for chemical reactions. Consequently, various low-dimensional nanomaterials can also be generated. This study provides a comprehensive review of low-dimensional nanomaterials synthesized via PLAL, including their formation mechanisms and applications.","PeriodicalId":504659,"journal":{"name":"APL Materials","volume":"24 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141046943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature effects on the nanoscale thermoelastic response of a SiO2 membrane 温度对二氧化硅膜纳米级热弹性响应的影响

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0201769

D. Fainozzi, Federico Caporaletti, Flavio Capotondi, Dario De Angelis, Ryan A. Duncan, L. Foglia, Alessandro Martinelli, R. Mincigrucci, K. A. Nelson, Emanuele Pedersoli, Marco Zanatta, Alexei A. Maznev, Giulio Monaco, F. Bencivenga, Giacomo Baldi

{"title":"Temperature effects on the nanoscale thermoelastic response of a SiO2 membrane","authors":"D. Fainozzi, Federico Caporaletti, Flavio Capotondi, Dario De Angelis, Ryan A. Duncan, L. Foglia, Alessandro Martinelli, R. Mincigrucci, K. A. Nelson, Emanuele Pedersoli, Marco Zanatta, Alexei A. Maznev, Giulio Monaco, F. Bencivenga, Giacomo Baldi","doi":"10.1063/5.0201769","DOIUrl":"https://doi.org/10.1063/5.0201769","url":null,"abstract":"We crossed two femtosecond extreme ultraviolet (EUV) pulses on a 100 nm thick amorphous membrane of SiO2, generating transient gratings (TGs) of light intensity with 84 nm spatial periodicity. The EUV TG excitation gave rise to the efficient generation of Lamb waves (LWs) and of a temperature grating, whose dynamics was studied at two different initial sample temperatures, 50 and 300 K. The short penetration depth of the EUV excitation pulses turned into a strong non-uniformity in the actual temperature as a function of the depth from the sample surface. At the lowest temperature, the LW frequencies presented a sizable shift in time due to the thermal equilibration along the membrane thickness. The analysis of the EUV TG waveforms allowed us to determine the decay time of the thermal grating and the sound attenuation coefficient, both found in reasonable agreement with the literature. The results show how EUV TG can provide information of non-equilibrium thermoelastic dynamics in thin membranes transparent to optical radiation.","PeriodicalId":504659,"journal":{"name":"APL Materials","volume":"92 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141135544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface matters: A case study of the scale and impact of oxide surfaces via orbital polarization 表面问题：通过轨道极化对氧化物表面的规模和影响进行案例研究

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0198123

Lishai Shoham, M. Baskin, Y. Kauffmann, Anna Zakharova, Teppei Yoshida, Shigeki Miyasaka, Cinthia Piamonteze, L. Kornblum

{"title":"Surface matters: A case study of the scale and impact of oxide surfaces via orbital polarization","authors":"Lishai Shoham, M. Baskin, Y. Kauffmann, Anna Zakharova, Teppei Yoshida, Shigeki Miyasaka, Cinthia Piamonteze, L. Kornblum","doi":"10.1063/5.0198123","DOIUrl":"https://doi.org/10.1063/5.0198123","url":null,"abstract":"Transition metal oxides (TMOs) exhibit a broad spectrum of functional electronic, magnetic, and optical properties, making them attractive for various technological applications. The scale and impact of surface defects and inhomogeneity can extend many unit cells below the surface. Overlooking this aspect of TMO surfaces can result in an incorrect interpretation of their physics and inhibit their maturation into device technology. Soft x-ray absorption spectroscopy (XAS) is a common technique for TMO studies, and different XAS acquisition modes can be used to measure different depth regimes in the sample. Here, we demonstrate a substantial disparity between the near-surface region and the “bulk” of the prototypical TMO SrVO3. By driving the system across two scenarios of orbital polarization, we illustrate how a common XAS surface-sensitive acquisition technique fails to detect the intrinsic orbital polarization. By stark contrast, a “bulk”-sensitive technique successfully captures this effect, elucidating the expected orbital occupation inversion. These results not only underscore the impact of the near-surface region on the correct interpretation of TMO fundamental physics, but further highlight the scale of surface inhomogeneity, a critical aspect of nanoscale functional devices.","PeriodicalId":504659,"journal":{"name":"APL Materials","volume":"23 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141137792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-conventional resonant behavior of an unconfined magnetic domain wall in a permalloy strip 坡莫合金带材中无约束磁畴壁的非常规共振行为

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0206170

Laura Fernández-García, Sandra Ruiz-Gómez, Rubén Guerrero, Rodrigo Guedas, Claudio Aroca, Lucas Perez, J. L. Prieto, Manuel Muñoz

引用次数: 0

Polypyrrole film formation using DC biasing of substrate in in-solution plasma process 在溶液等离子工艺中利用基底直流偏压形成聚吡咯薄膜

APL Materials Pub Date : 2024-05-01 DOI: 10.1063/5.0203623

Hyojun Jang, Eun Young Jung, Jae Young Kim, H. Tae

引用次数: 0