Materials Today Electronics最新文献_第8页

Strain engineering of magnetic exchange and topological magnons in chromium trihalides from first-principles 三卤化铬中磁交换和拓扑磁振子的第一性原理应变工程

Materials Today Electronics Pub Date : 2023-10-29 DOI: 10.1016/j.mtelec.2023.100072

Dorye L. Esteras, José J. Baldoví

{"title":"Strain engineering of magnetic exchange and topological magnons in chromium trihalides from first-principles","authors":"Dorye L. Esteras, José J. Baldoví","doi":"10.1016/j.mtelec.2023.100072","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100072","url":null,"abstract":"<div><p>Recent experiments evidence the direct observation of spin waves in chromium trihalides and the presence of a gap at the Dirac points of the magnon dispersion in bulk CrI<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>. However, the topological origin of this feature remains unclear and its emergence at the 2D limit has not yet been proven experimentally. Herein, we perform a fully self-consistent ab initio analysis to deeply understand magnetic exchange of chromium trihalides in the 2D limit. We compute the orbital dependent magnetic interactions and Curie temperatures under applied biaxial strain. Our results confirm the existence of a gap around the K high-symmetry point in the linear magnon dispersion of CrI<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>, which originates as a direct consequence of intralayer Dzyaloshinskii–Moriya (DM) interaction. In addition, our orbital resolved analysis reveals the microscopic mechanisms that can be exploited using strain engineering to increase the strength of the DM interaction and thus control the topological gap width in CrI<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>. This paves the way to the further development of this family of materials as building-blocks for topological magnonics at the limit of miniaturization.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100072"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772949423000487/pdfft?md5=566323c064a6493c543d753f7d86160f&pid=1-s2.0-S2772949423000487-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92101474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Brief Status of Flexible Bi-functional Energy Storage Electrochromic Devices 柔性双功能储能电致变色器件的研究现状

Materials Today Electronics Pub Date : 2023-10-26 DOI: 10.1016/j.mtelec.2023.100075

Anjali Chaudhary

{"title":"A Brief Status of Flexible Bi-functional Energy Storage Electrochromic Devices","authors":"Anjali Chaudhary","doi":"10.1016/j.mtelec.2023.100075","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100075","url":null,"abstract":"<div><p>There is no wonder that flexible electronics can be considered as a boon for mankind because of its inherent characteristics of portability, stretchability, bendability, and wearability which makes it an ideal vehicle for a plethora of biomedical applications. Flexible electronic device, often integrated for wearable electronics and energy storage electrochromic device, (ESED) is a snowballed research area. This review focuses on the development of flexible ESED where charging and discharging of energy storage device is coupled with decoloration and coloration of an electrochromic device. The strategy behind the integration of energy storage and electrochromic device as a bi-functional device is discussed in length. The essential key parameters for fabrication of flexible ESED and the performance parameters of the flexible ESED have been highlighted. A quantitative analysis of flexible ESED fabricated using different materials has been presented while dwelling into details of possible materials candidates and challenges encountered so far with a possible direction of future research. Enveloping the major research developments in the field of flexible ESED while addressing the possible challenges, a future outlook in the mentioned research thrust have been presented.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772949423000517/pdfft?md5=07d0a6ba02c7bfa7f4b6e08776f936c7&pid=1-s2.0-S2772949423000517-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92101471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-inspired visual systems based on curved image sensors and synaptic devices 基于曲面图像传感器和突触装置的仿生视觉系统

Materials Today Electronics Pub Date : 2023-10-19 DOI: 10.1016/j.mtelec.2023.100071

Zhenghao Long , Yucheng Ding , Swapnadeep Poddar , Leilei Gu , Qianpeng Zhang , Zhiyong Fan

{"title":"Bio-inspired visual systems based on curved image sensors and synaptic devices","authors":"Zhenghao Long , Yucheng Ding , Swapnadeep Poddar , Leilei Gu , Qianpeng Zhang , Zhiyong Fan","doi":"10.1016/j.mtelec.2023.100071","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100071","url":null,"abstract":"<div><p>Vision is our dominant sense and is also highly desired in artificial systems. In this article, we provide an overview of bio-inspired visual systems that utilize curved image sensors and/or photonic synapses. The use of curved detector geometry ensures clear image sensing abilities with fewer optical elements, which has the potential to lead to miniaturization. Additionally, photonic synapses that integrate light sensing and neuromorphic preprocessing can reduce redundant modules and signal communications. This results in decreased device size and energy consumption. In this review, we begin by summarizing the fabrication processes of curved image sensors, followed by a review of typical bionic eye systems. Next, we discuss the materials and device structures of typical photonic synapses and related imaging systems. We also review the combinations of curved image sensors and photonic synapses. Finally, we summarize the key advantages and challenges of current bio-inspired visual systems.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772949423000475/pdfft?md5=ce9bd30c607ba9ae62d0eb77b147a998&pid=1-s2.0-S2772949423000475-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92101472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in synthesis of two-dimensional non-van der Waals ferromagnetic materials 二维非范德华铁磁材料的合成研究进展

Materials Today Electronics Pub Date : 2023-10-19 DOI: 10.1016/j.mtelec.2023.100074

Hongtao Ren , Gang Xiang

{"title":"Recent advances in synthesis of two-dimensional non-van der Waals ferromagnetic materials","authors":"Hongtao Ren , Gang Xiang","doi":"10.1016/j.mtelec.2023.100074","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100074","url":null,"abstract":"<div><p>Due to their strong covalent binding interaction between adjacent layers, it was difficult to exfoliate non-layered materials compared to layered materials. Recently, Balan, et al. (<em>Nat. Nanotechnol.</em> 13, 602–609, 2018) prepared a non-van der Waals (non-vdW) two-dimensional (2D) hematene from hematite (α-Fe<sub>2</sub>O<sub>3</sub>) by liquid exfoliation. Subsequently, various approaches including chemical vapor deposition (CVD), molecular beam epitaxy (MBE), ion layer epitaxy (ILE), pulsed laser deposition (PLD), and polymer assisted deposition (PAD) have been developed. Notably, a general thermodynamics-triggered competitive growth (TTCG) model was proposed to design a new hydrate-assisted CVD (HACVD) of the 2D non-layered materials growth. Although existing methods have achieved some good results, there are still many obstacles to overcome. In this review, we aim to give an overview on the recent advances and challenges in synthesis of 2D non-vdW ferromagnetic materials, and future prospects of 2D non-layered materials.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100074"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772949423000505/pdfft?md5=c0b02f107d4ea0e88eac2f7c9bf6bda5&pid=1-s2.0-S2772949423000505-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92101476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Van der Waals engineering toward designer spintronic heterostructures 范德华工程设计自旋电子异质结构

Materials Today Electronics Pub Date : 2023-10-17 DOI: 10.1016/j.mtelec.2023.100070

Jizhe Song , Jianing Chen , Mengtao Sun

{"title":"Van der Waals engineering toward designer spintronic heterostructures","authors":"Jizhe Song , Jianing Chen , Mengtao Sun","doi":"10.1016/j.mtelec.2023.100070","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100070","url":null,"abstract":"<div><p>This perspective explores the emerging field of spintronics within the context of two-dimensional van der Waals (vdW) heterostructures. Spintronics has opened exciting possibilities in the realm of two-dimensional (2D) materials. The integration of diverse 2D materials within vdW heterostructures has unveiled a plethora of previously unknown physical phenomena and potential applications related to spin-dependent transport, gate-tunable spin transport, spin filtering effects, and the emergence of ferromagnetism. These advancements have expanded the scope of spintronics beyond traditional bulk materials, offering unique opportunities for efficient spin injection, manipulation, and detection in 2D devices. A deep understanding of how different materials and interfaces are interconnected and how they affect spin properties is essential for improving the effectiveness and control of spin injection and detection. The study of spintronics in vdW heterostructures holds great promise for advancing the frontiers of developing the next generation of spintronic and quantum devices, revolutionizing information technology and nanoelectronics.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100070"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890837","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

Liquid crystal photoalignment technique: Basics, developments, and flexible/stretchable device applications 液晶光对准技术:基础、发展和柔性/可拉伸器件应用

Materials Today Electronics Pub Date : 2023-10-16 DOI: 10.1016/j.mtelec.2023.100069

Xiaochuan Xi , Cenqi Yan , Larry Zhongxin Shen , Yinghan Wang , Pei Cheng

引用次数: 0

Review: Exploring spin properties in van der Waals materials with star-of-David pattern 综述:探索具有大卫之星图案的范德华材料的自旋特性

Materials Today Electronics Pub Date : 2023-10-08 DOI: 10.1016/j.mtelec.2023.100068

Liwei Liu , Xuan Song , Xinyu Huang , Hongyan Ji , Ziying Hu , Yuan Huang , Hong-Jun Gao , Yeliang Wang

{"title":"Review: Exploring spin properties in van der Waals materials with star-of-David pattern","authors":"Liwei Liu , Xuan Song , Xinyu Huang , Hongyan Ji , Ziying Hu , Yuan Huang , Hong-Jun Gao , Yeliang Wang","doi":"10.1016/j.mtelec.2023.100068","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100068","url":null,"abstract":"<div><p>The spin properties in van der Waals (vdW) low-dimensional materials have attracted increasing research interest due to their potential application in future nano-spintronic devices. Among the vast members of vdW materials, those with star-of-David (SOD) charge density wave (CDW) patterns are emergent. Here, we give a review of the recent experimental and theoretical progress achieved on this kind of material. First, the features and advantages of exploring spin properties in SOD materials are briefly introduced. Second, the influences of different stacking on the spin properties of SOD systems are discussed, from single-layer to bilayer and then to bulk with different phase combinations by taking advantage of the vdW nature, manifesting various spin phenomena such as the 120° in-plane antiferromagnetism, quantum spin liquid, and the Kondo effect. Then we give some examples of manipulation methods such as doping, strain, and electric field, which can induce the change of spin features. Finally, the current challenges and opportunities at the frontier in this research field are discussed.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100068"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890841","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

Field-free domain wall spin torque nano-oscillators with multimodal real-time modulation and high-quality factor 具有多模态实时调制和高质量因数的无场畴壁自旋力矩纳米振荡器

Materials Today Electronics Pub Date : 2023-10-06 DOI: 10.1016/j.mtelec.2023.100065

Di Wang , Ziwei Wang , Sheng Jiang , Long Liu , Huai Lin , Yifan Zhang , Ruifeng Tang , Xi Luo , Guozhong Xing

{"title":"Field-free domain wall spin torque nano-oscillators with multimodal real-time modulation and high-quality factor","authors":"Di Wang , Ziwei Wang , Sheng Jiang , Long Liu , Huai Lin , Yifan Zhang , Ruifeng Tang , Xi Luo , Guozhong Xing","doi":"10.1016/j.mtelec.2023.100065","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100065","url":null,"abstract":"<div><p>We report on a magnetic domain wall (DW)-based spin torque nano-oscillator (STNO) with real-time multimodal frequency modulation characteristics by engineering the synergistic effect of shape anisotropy, Dzyaloshinskii-Moriya interaction (DMI), and spin-transfer torque. The achieved manageable oscillation and precession of magnetic DW motivate us to implement such attributes into the developed STNO under a low current density of ∼10<sup>7</sup> A/cm<sup>2</sup>, which demonstrates outstanding functionality of multimodal real-time modulation ranging from few GHz and sub-THz with corresponding few tens and >10<sup>4</sup> quality factor (<em>f</em><sub>STNO</sub>/Δ<em>f<!--> </em>) in absence of external magnetic field. Furthermore, the dynamic process of DW motion and magnetic moment precession under different modes has been revealed systematically, and the frequency dependence of various physical parameters including damping constant, uniaxial anisotropy constant, saturation magnetization, exchange stiffness, and DMI constant has also been summarized in detail. Such a DW-based device enriches the STNO family and promises great potential with a broad spectrum of applications in microwave generators and neuromorphic computing.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100065"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890838","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: 1

Exploring amorphous Ge-As-Se-Te as an active layer candidate in memristive devices 探索非晶锗-砷-硒-碲作为忆阻器件有源层的候选材料

Materials Today Electronics Pub Date : 2023-10-04 DOI: 10.1016/j.mtelec.2023.100064

Wagner Correr, Corinne Chouinard, Sandra Messaddeq, Younes Messaddeq

{"title":"Exploring amorphous Ge-As-Se-Te as an active layer candidate in memristive devices","authors":"Wagner Correr, Corinne Chouinard, Sandra Messaddeq, Younes Messaddeq","doi":"10.1016/j.mtelec.2023.100064","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100064","url":null,"abstract":"<div><p>The implementation of resistive switches in neuromorphic computing and long-term data storage has been delayed by inherent difficulties in their fabrication process, their stability and reproducibility. Low operating voltages, high-density integration and low energy consumption are common challenges in resistive switch design. Here, we report the implementation of a resistive switch based on the amorphous semiconductor Ge<span><math><msub><mrow></mrow><mrow><mn>15</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>25</mn></mrow></msub></math></span>Se<span><math><msub><mrow></mrow><mrow><mn>15</mn></mrow></msub></math></span>Te<span><math><msub><mrow></mrow><mrow><mn>45</mn></mrow></msub></math></span> (GAST) between an inert (W) and an active (Ag) electrode. The device was built using contact photolithography and standard microfabrication techniques, allowing the integration with traditional manufacturing processes. The device is able to switch at voltages as low as 0.15V and 0.6V, when operating in DC and pulsed conditions, respectively. Our results suggest that the adoption of mixed conductors such as GAST may yield devices that operate at low voltages and low energy for neuromorphic applications.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100064"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890836","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

Soft magnetic materials for power inductors: State of art and future development 功率电感用软磁材料:现状与未来发展

Materials Today Electronics Pub Date : 2023-10-02 DOI: 10.1016/j.mtelec.2023.100066

Jiayi He , Han Yuan , Min Nie , Hai Guo , Hongya Yu , Zhongwu Liu , Rong Sun

{"title":"Soft magnetic materials for power inductors: State of art and future development","authors":"Jiayi He , Han Yuan , Min Nie , Hai Guo , Hongya Yu , Zhongwu Liu , Rong Sun","doi":"10.1016/j.mtelec.2023.100066","DOIUrl":"https://doi.org/10.1016/j.mtelec.2023.100066","url":null,"abstract":"<div><p>Soft magnetic materials play important roles in both power generation and conversion devices. One of their important applications is power inductor, which acts as an energy transfer station, transferring the direct current energy and blocking the high-frequency alternating current. With the rapid development of circuit topologies and power semiconductors, the power inductors with higher inductance performance, smaller size and higher energy efficiency are required. Based on the world-wide progress, this review gives a comprehensive and critical description on the fundamentals and development of the soft magnetic materials for the power inductors. The relationship between the properties of soft magnetic materials and the inductance performance of device is discussed in detail. The industry status of the power inductors based on both soft ferrites and soft magnetic composites (SMCs) is analyzed. The material selection, fabrication process and microstructure-properties relationships for ferrites and SMC materials are summarized. In particular, this review emphatically compares the difference between the conventional magnetic cores and the multilayer/molding inductors in processing and material selection. The challenges and opportunities of the soft magnetic materials are also highlighted for future development.</p></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"6 ","pages":"Article 100066"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890834","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