Physics of the Solid State最新文献_第3页

Exploring the Spin Torque Diode Effect in Low Dimensional Magnetic Multilayer Structure 探索低维磁性多层结构中的自旋扭矩二极管效应

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-24 DOI: 10.1134/s1063783424600626

Rishma Thilakaraj, Kanimozhi Natarajan, Amuda Rajamani, Brinda Arumugam

{"title":"Exploring the Spin Torque Diode Effect in Low Dimensional Magnetic Multilayer Structure","authors":"Rishma Thilakaraj, Kanimozhi Natarajan, Amuda Rajamani, Brinda Arumugam","doi":"10.1134/s1063783424600626","DOIUrl":"https://doi.org/10.1134/s1063783424600626","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>This study investigates the impact of spin torque diode (STD) effect in a composite spin valve pillar, comprising distinct magnetic and non-magnetic layers arranged as AF/F0/NM1/F1/NM2/F2. Our investigation delves into the foundational mechanisms governing the STD effect within this magnetic multilayer system. Through the utilization of the composite spin valve pillar as a dynamic platform, we unravel the intricate interplay between spin-dependent charge transport and magnetic fields. Our inquiry is to understand diverse structural parameters, allowing us to unveil its operational capabilities and optimize its functionality across varied operating conditions. Furthermore, our exploration encompasses the quantification of detection sensitivity, scrutinizing the relationship between output voltage and applied input power. In our study, we have done an analysis of crucial parameters such as current, resistance, and sensitivity in the STD system. Our findings showcase the manifestation of the spin diode effect in low-dimensional magnetic structure. This finding indicates the feasibility of fabricating a spin diode device with diverse potential applications.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Temperature Sensor Based on Deformed One-Dimensional Nanometallic Photonic Crystals 基于变形一维纳米金属光子晶体的温度传感器

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-24 DOI: 10.1134/s1063783423600292

O. Nasri, J. Zaghdoudi, M. Kanzari

{"title":"Temperature Sensor Based on Deformed One-Dimensional Nanometallic Photonic Crystals","authors":"O. Nasri, J. Zaghdoudi, M. Kanzari","doi":"10.1134/s1063783423600292","DOIUrl":"https://doi.org/10.1134/s1063783423600292","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The theoretical investigation of the temperature dependence in hybrid one-dimensional photonic crystals with a metal defect involved simultaneously considering thermal expansion effect and thermal-optical effect. Firstly, we study the effect of the number of iterations in the H(LH)NH(LH)N and H(LH)NSH(LH)N systems, where H (GaAs) and L (Bi4Ge3O12 “BGO”) are two different materials with constant refractive index nH (nGaAs = 3.3) and nL (nBGO = 2.31), respectively. S is a metal chosen as the Ag. The presence of metal S enhances noticeably the sensitivity for the temperature. It has been shown that when N increases the transmission peak λpeak shifts to higher wavelengths for the structure H(LH)NH(LH)N. We show that the proposed device H(LH)NSH(LH)N can be used as a temperature sensor. Indeed, the sensitivity changes from the value 4.5 pm K–1 in the absence of the metal layer to the value 17 pm K–1 in its presence. Enhancing the sensitivity of the H (LH)NSH(LH)N component, we proceeded to a deformation of the system by the application of a law of the type y = x1 + k, where y denotes the deformation coordinate of the structure H(LH)NSH(LH)N and x the coordinate before deformation. The degree of deformation is defined by the coefficient k. The value of N is chosen equal to 4. This value corresponds to the minimum of layers of the system leading to its satisfactory performance. We show in this case that the sensitivity increases by increasing the positive value of k.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fabrication and Optical Characteristics of Thin Films Comprising VO2 and SnO2 由 VO2 和 SnO2 组成的薄膜的制作和光学特性

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-24 DOI: 10.1134/s1063783423600395

Chirag Saharan, Deepak Singhwal, Pawan S. Rana

{"title":"Fabrication and Optical Characteristics of Thin Films Comprising VO2 and SnO2","authors":"Chirag Saharan, Deepak Singhwal, Pawan S. Rana","doi":"10.1134/s1063783423600395","DOIUrl":"https://doi.org/10.1134/s1063783423600395","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>As the demand for sustainable energy solutions rises, the development of energy-efficient technologies becomes imperative. Smart windows, incorporating thermochromic materials, emerge as promising contributors to reducing building energy consumption. Vanadium dioxide (VO2), known for its thermochromic properties, faces challenges in commercial application due to its limited visible light transmittance. This study addresses these challenges by utilizing quartz as a substrate and depositing VO2 thin films using radio frequency sputtering. To enhance optical performance, a bilayer structure was created by integrating this single-layer film with SnO2. Room-temperature X-ray diffraction confirmed the single-phase growth of VO2 on quartz, and XRD validated the proper fabrication of films. Ultraviolet-visible spectroscopy at room temperature substantiated the improved transmittance of the SnO2/VO2 bilayer, marking a significant advancement toward more efficient and commercially viable smart windows. This research highlights the potential of SnO2-based thin films in mitigating the visible light transmittance limitations of VO2, thus opening avenues for advanced smart window applications with enhanced energy-saving capabilities. Additionally, Atomic Force Microscopy (AFM) was employed to compare the roughness of the films, and the impact of reduced roughness on optical transmittance was evaluated. The results contribute to the optimization of smart window technologies for broader sustainable energy applications.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exploring Calcium–Zinc Ferrite Nanoparticles: Synthesis, Properties, and Applications 探索钙锌铁氧体纳米粒子：合成、性质和应用

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-11 DOI: 10.1134/s1063783424600468

R. C. Bharamagoudar, A. S. Patil, S. N. Mathad

引用次数: 0

Effect on Structural, Morphological, and Magnetic Hysteresis of Ni2+–Zr4+ Co-Substituted Barium Hexaferrites by Hydrothermal Synthesis 水热合成法对 Ni2+-Zr4+ 共取代六铁氧体钡的结构、形态和磁滞的影响

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-11 DOI: 10.1134/s1063783424600547

Chenglong Lei, Siyu Zhu, Zhiye Wang, Qi Jia

{"title":"Effect on Structural, Morphological, and Magnetic Hysteresis of Ni2+–Zr4+ Co-Substituted Barium Hexaferrites by Hydrothermal Synthesis","authors":"Chenglong Lei, Siyu Zhu, Zhiye Wang, Qi Jia","doi":"10.1134/s1063783424600547","DOIUrl":"https://doi.org/10.1134/s1063783424600547","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>BaFe12–2xNixZrxO19 (x = 0–1) ferrites were successfully synthesized by hydrothermal method based on metal chloride. The synergistic effects of Ni2+–Zr4+ ions doping and heat treatment on microstructure and ions distribution to tailoring the magnetic properties were studied. Without calcination the traces of BaCO3 appears in all samples where the Fe2O3 phase appears at x > 0.6. It exhibits very good hexagonal crystals with doping content x < 0.8, but deviate from hexagonal flakes for x = 1. With low temperature 950°C calcination, the pure phase and the uniform distribution of particle size were obtained. XPS characterization show that the concentrations of non-lattice oxygen decrease, where Fe2+ contents slightly increase and then decrease with increasing Ni2+–Zr4+ ions. The comprehensive magnetic properties, especially the saturation magnetization, of doped ferrites prepared by hydrothermal method decrease sharply when x > 0.6. The anisotropy field also decreases to the lowest at x = 0.6. By comparing the magnetic properties under heat treatment conditions, the optimum annealing temperature is 1000°C, where the saturation magnetization (Ms) increases up to 59.54 emu/g at x = 0.8. Thus, the as-synthesized Ni2+–Zr4+ doping strontium barium hexaferrite will be useful for the applications in security switching, microwave absorption and recording media.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Transport and Localization in Quantum Dot Chains with Fluctuations: A Simple Probabilistic Model 波动量子点链中的传输和定位：一个简单的概率模型

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-11 DOI: 10.1134/s1063783424600584

J. A. Lazzús

引用次数: 0

Study of Optical and Magnetic Properties of Solvothermally Synthesized Mn/Fe/N-Doped ZnO Nanocomposite for Advanced Dye Photodegradation 用于先进染料光降解的溶热合成 Mn/Fe/N 掺杂氧化锌纳米复合材料的光学和磁学特性研究

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-06-11 DOI: 10.1134/s1063783424600705

Manisha Dagar, Suresh Kumar, Amit Jain, Manohar Singh, Virender Kundu

引用次数: 0

First-principles Study on the Lattice Thermal Conductivity of Janus In2Ge2Te6 Bilayer 关于 Janus In2Ge2Te6 双电层晶格导热性的第一原理研究

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-05-23 DOI: 10.1134/s1063783424600535

Wei Ding, Songwen Tian, Yankun Shen, Shijie Yang, Jingze Wang, Ziyang Yuan, Zheng Zhai

引用次数: 0

Thermal and Diffusion Processes during Electron Beam Processing of Surfaces of Electroexplosive Alloying 电爆炸合金表面电子束加工过程中的热和扩散过程

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-05-23 DOI: 10.1134/s1063783424600523

A. V. Ionina

引用次数: 0

On the Problem of Generalization of the Landau–Lifshitz Equation 论兰道-利夫希茨方程的广义化问题

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2024-05-23 DOI: 10.1134/s1063783424600432

S. O. Gladkov

引用次数: 0