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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 0.9 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
{"title":"Exploring Calcium–Zinc Ferrite Nanoparticles: Synthesis, Properties, and Applications","authors":"R. C. Bharamagoudar,&nbsp;A. S. Patil,&nbsp;S. N. Mathad","doi":"10.1134/S1063783424600468","DOIUrl":"10.1134/S1063783424600468","url":null,"abstract":"<p>This study focuses on the synthesis and characterization of calcium–zinc Ca<sub>1–<i>x</i></sub>Zn<sub><i>x</i></sub>Fe<sub>2</sub>O<sub>4</sub> (<i>x</i> = 0, 0.25, 0.50, 0.75, 1.0) (Ca–Zn) ferrite nanoparticles by the solution combustion synthesis (SCS), exploring their potential applications in various technological fields. The characterization involved a comprehensive analysis of their structural, magnetic, and morphological features using various techniques such as X-ray diffraction, transport properties, biological studies and magnetic measurements. Understanding the synthesis process and the resulting nanoparticle properties is crucial for harnessing their unique attributes in diverse fields like biomedical engineering, magnetic storage.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503210","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
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 0.9 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,&nbsp;Siyu Zhu,&nbsp;Zhiye Wang,&nbsp;Qi Jia","doi":"10.1134/S1063783424600547","DOIUrl":"10.1134/S1063783424600547","url":null,"abstract":"<p>BaFe<sub>12–2<i>x</i></sub>Ni<sub><i>x</i></sub>Zr<sub><i>x</i></sub>O<sub>19</sub> (<i>x</i> = 0–1) ferrites were successfully synthesized by hydrothermal method based on metal chloride. The synergistic effects of Ni<sup>2+</sup>–Zr<sup>4+</sup> ions doping and heat treatment on microstructure and ions distribution to tailoring the magnetic properties were studied. Without calcination the traces of BaCO<sub>3</sub> appears in all samples where the Fe<sub>2</sub>O<sub>3</sub> phase appears at <i>x</i> &gt; 0.6. It exhibits very good hexagonal crystals with doping content <i>x</i> &lt; 0.8, but deviate from hexagonal flakes for <i>x</i> = 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 Fe<sup>2+</sup> contents slightly increase and then decrease with increasing Ni<sup>2+</sup>–Zr<sup>4+</sup> ions. The comprehensive magnetic properties, especially the saturation magnetization, of doped ferrites prepared by hydrothermal method decrease sharply when <i>x</i> &gt; 0.6. The anisotropy field also decreases to the lowest at <i>x</i> = 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 <i>x</i> = 0.8. Thus, the as-synthesized Ni<sup>2+</sup>–Zr<sup>4+</sup> doping strontium barium hexaferrite will be useful for the applications in security switching, microwave absorption and recording media.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"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 0.9 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
{"title":"Transport and Localization in Quantum Dot Chains with Fluctuations: A Simple Probabilistic Model","authors":"J. A. Lazzús","doi":"10.1134/S1063783424600584","DOIUrl":"10.1134/S1063783424600584","url":null,"abstract":"<p>In this study, we obtain an expression to calculate the probability of electron transmission in a linear chain of <i>N</i> quantum dots with fluctuations of the potential levels on the Fermi seas of each point. Here, the transmission probability model is based on concepts of Probability Theory. From this expression, we determine the transmission in the chain under these fluctuations. Besides, Anderson localization and other transport properties were studied using numerical simulations. Results show the impact of fluctuations on transmission efficiency and aid in comprehensively understanding electron transport in quantum dot systems.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503209","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
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 0.9 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
{"title":"Study of Optical and Magnetic Properties of Solvothermally Synthesized Mn/Fe/N-Doped ZnO Nanocomposite for Advanced Dye Photodegradation","authors":"Manisha Dagar,&nbsp;Suresh Kumar,&nbsp;Amit Jain,&nbsp;Manohar Singh,&nbsp;Virender Kundu","doi":"10.1134/S1063783424600705","DOIUrl":"10.1134/S1063783424600705","url":null,"abstract":"<p>In this research, a mesoporous Mn/Fe/N-doped ZnO nanocomposite was developed via solvothermal synthesis, focusing on its optical and magnetic potentials for dye degradation. FTIR spectroscopy identified unique functional groups, while EDX analysis confirmed its elemental composition. BET analysis showcased an expanded surface area due to mesoporosity, evidenced by a type IV isotherm. UV-Visible spectroscopy revealed a red shift and optical band gap reduction from 3.13 to 2.68 eV, indicating improved light absorption. SEM provided insights into distinctive morphologies, and PL studies showed reduced electron-hole recombination in highly doped samples. SQUID measurements verified the nanocomposite’s ferromagnetic characteristics. These properties collectively enhance its photocatalytic efficacy against Congo red and Methylene blue dyes, presenting a viable solution for environmental clean-up.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141519469","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
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 0.9 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
{"title":"First-principles Study on the Lattice Thermal Conductivity of Janus In2Ge2Te6 Bilayer","authors":"Wei Ding,&nbsp;Songwen Tian,&nbsp;Yankun Shen,&nbsp;Shijie Yang,&nbsp;Jingze Wang,&nbsp;Ziyang Yuan,&nbsp;Zheng Zhai","doi":"10.1134/S1063783424600535","DOIUrl":"10.1134/S1063783424600535","url":null,"abstract":"<p>Janus In<sub>2</sub>Ge<sub>2</sub>Te<sub>6</sub> bilayer exhibit the potential for low thermal conductivity due to their complex geometry and large atomic mass contrast. The results demonstrate that the intersection of the low-frequency optical branch and the longitudinal acoustic phonon branch (LA) within the Janus In<sub>2</sub>Ge<sub>2</sub>Te<sub>6</sub> bilayer structure, combined with a larger average atomic mass, leads to a smaller phonon group velocity, a higher phonon scattering rate, a lower phonon relaxation time, and a stronger anharmonicity. These factors contribute to the lower thermal conductivity of the Janus In<sub>2</sub>Ge<sub>2</sub>Te<sub>6</sub> bilayer. The Janus In<sub>2</sub>Ge<sub>2</sub>Te<sub>6</sub> bilayer structure exhibits a maximum and minimum lattice thermal conductivity of about 0.35 and 0.1 W/(m K) at 300 and 1000 K, respectively.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147462","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
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 0.9 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
{"title":"Thermal and Diffusion Processes during Electron Beam Processing of Surfaces of Electroexplosive Alloying","authors":"A. V. Ionina","doi":"10.1134/S1063783424600523","DOIUrl":"10.1134/S1063783424600523","url":null,"abstract":"<p>The mechanisms of hardening surface layers of carbon steel 45 after combined treatment including electroexplosive boroaluminizing, aluminizing with silicon carbide, and electron beam processing (EBP) are revealed. The combined processing leads to an increase in the hardening depth. After the electroexplosive boroaluminizing and EBP, the microhardeness is 16 GPa and the hardening depth is 90 μm; after the electroexplosive aluminizing combined with silicon carbide and EBP, the microhardness is 12.5 GPa and the hardening depth is 50 μm. In the initial state, the microhardness is 2 GPa. In the conditions of dry sliding friction, the wear resistance increases by a factor of 43 after electroexplosive boroaluminizing and EBP, and by a factor of 12 after electroexplosive aluminizing with silicon carbide. The surface hardening is achieved as a result of the formation of fine-disperse nonequilibrium structure containing strengthening phases. The models developed in this work allow one to explain the results by the peculiarities of the thermal and diffusion processes during EBP.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147460","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
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 0.9 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
{"title":"On the Problem of Generalization of the Landau–Lifshitz Equation","authors":"S. O. Gladkov","doi":"10.1134/S1063783424600432","DOIUrl":"10.1134/S1063783424600432","url":null,"abstract":"<p>Using the method of compiling an expression invariant with respect to the operations of inversion of time and coordinates for the energy of a magnetic structure under the influence of some external effective field which is considered an independent vector parameter of the problem, a system of differential equations generalized the Landau–Lifshitz and Hilbert results is obtained. When obtaining these equations, the explicit expression for the dissipative function are obtained taking into account the pseudovector the nature of the magnetic field strength. The analysis of the obtained equations for the case of strong magnetic fields is carried out and the possibility of the existence of practically continuous oscillations of the magnetization at a frequency <span>(bar {omega })</span> = <span>(xi {{gamma }_{e}}{{M}_{0}})</span> (where coefficient ξ is greater than unity) is predicted.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153901","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
XRD Study of Structure Transformations in Zn–In–O Nanocomposite Thin Films Prepared by Spray Pyrolysis Method 喷雾热解法制备的 Zn-In-O 纳米复合薄膜结构转变的 XRD 研究
IF 0.9 4区 物理与天体物理
Physics of the Solid State Pub Date : 2024-05-23 DOI: 10.1134/S1063783424600596
V. Brinzari, G. Korotcenkov, O. Shapoval, I. Boris, S. Vatavu, D. L. Nika
{"title":"XRD Study of Structure Transformations in Zn–In–O Nanocomposite Thin Films Prepared by Spray Pyrolysis Method","authors":"V. Brinzari,&nbsp;G. Korotcenkov,&nbsp;O. Shapoval,&nbsp;I. Boris,&nbsp;S. Vatavu,&nbsp;D. L. Nika","doi":"10.1134/S1063783424600596","DOIUrl":"10.1134/S1063783424600596","url":null,"abstract":"<p>Structure and composition of spray pyrolized thin films in ZnO–In<sub>2</sub>O<sub>3</sub> system with a relative atomic zinc content (Zn/In) in the range of 0.125–2 is investigated using X-ray diffraction analysis. These nanostructured films constitute of 1 to 5 In- and Zn-based oxide nanocrystalline phases including In<sub>2</sub>O<sub>3</sub>(ZnO)<sub>3</sub> with superlattice structure and ZnO with rather unexpected rocksalt structure. The octahedral coordination of Zn atoms and practically the same Zn–O distances as in the case of In<sub>2</sub>O<sub>3</sub> facilitate a growth of ZnO rock salt on the surface of In<sub>2</sub>O<sub>3</sub> nanocrystals. The modified Williamson-Hall method is applied to determine the crystallite size and micro-strain in the predominant In<sub>2</sub>O<sub>3</sub> phase. The monotonous crystallite fineness of this phase with increase of Zn content and monotonous increase of In–Zn-based oxide crystallites is established. A mutual doping of In<sub>2</sub>O<sub>3</sub> and ZnO nanocrystallites, leading to the formation of <i>n</i>–<i>n</i><sup>+</sup> contacts at their boundaries, has been revealed. Model representations about the influence of the nanocomposite structure of films on their electrical properties are proposed.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147520","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
Metal and Non-Metal Doped FeVO4 Based Composite Semiconductors for Degradation of Organic Toxicants: A Review 用于降解有机毒物的掺金属和非金属 FeVO4 基复合半导体：综述
IF 0.9 4区 物理与天体物理
Physics of the Solid State Pub Date : 2024-05-13 DOI: 10.1134/S1063783423600012
M. Elamathi
{"title":"Metal and Non-Metal Doped FeVO4 Based Composite Semiconductors for Degradation of Organic Toxicants: A Review","authors":"M. Elamathi","doi":"10.1134/S1063783423600012","DOIUrl":"10.1134/S1063783423600012","url":null,"abstract":"<p>In recent years, two of the most pressing problems in the world have become the rising need for energy and the degradation of the environment. Industrialization’s discharge of organic and metal ion waste into water systems has created a critical demand for efficient removal and degradation of organic waste. Due to their superior optical and electrical properties, semiconductors like metal oxides and mixed metal oxides have attracted a lot of attention for photocatalysis. The majority of these semiconductors, however, lack the ideal band alignment necessary for effective sun/solar light absorption. FeVO<sub>4</sub> can be a useful tool for band tuning for visible light photocatalysis in order to get around this problem. Many attempts have been made over the years to increase FeVO<sub>4</sub>’s photocatalytic performance. It has been postulated and put into practice that a number of different modification strategies, including element doping and composite fabrication, can be utilized to increase the efficiency of photocatalysts based on FeVO<sub>4</sub>. The photocatalytic degradation of harmful organic pollutants by various metal- and non-metal-doped FeVO<sub>4</sub>-based materials is highlighted in this review paper. In recent years, significant progress has been made in understanding the core problems and creating effective photocatalysts.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140934959","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
Study of MgO (111) Charging Phenomena Using Scanning Electron Microscopy and Atomic Force Microscopy 利用扫描电子显微镜和原子力显微镜研究氧化镁（111）带电现象
IF 0.9 4区 物理与天体物理
Physics of the Solid State Pub Date : 2024-05-13 DOI: 10.1134/S1063783423600085
Aicha Boughariou, Osama Qays Abdullah, Guy Blaise
{"title":"Study of MgO (111) Charging Phenomena Using Scanning Electron Microscopy and Atomic Force Microscopy","authors":"Aicha Boughariou,&nbsp;Osama Qays Abdullah,&nbsp;Guy Blaise","doi":"10.1134/S1063783423600085","DOIUrl":"10.1134/S1063783423600085","url":null,"abstract":"<p>In this article we have studied, using the Scanning Electron Microscopy SEM LEO 440, the surface electrical properties of MgO (111) irradiated with 30 keV electrons. The study of the evolution of the secondary electronic emission of MgO (111) shows that <span>(ln sigma )</span> increases and reaches a value lower than zero. After an injection of 5000 pC, we observe a pseudo mirror, which is due to a very negative surface potential. Finally, we have shown the very high stability of charges within MgO (111) thanks to the use of Atomic Force Microscopy coupled with Scanning Electron Microscope. We can then conclude that MgO (111) is a good trapping insulator.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935321","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
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