Physics of the Solid State最新文献

Study of Structural, Crystallite Size, and Optical Properties of Sol–Gel Synthesized Zinc Oxide Nanoparticles Using XRD and UV-Visible Techniques

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424601516

Muzaffar Iqbal Khan, Gambheer Singh Kathait, Majahid Ul Islam, Feroz Ahmad Mir, Ali Ashgar Shah, Ishfaq Ahmed, Pooja Khajuria, Rayees Ahmad Zargar, Trilok Chandra Upadhyay

{"title":"Study of Structural, Crystallite Size, and Optical Properties of Sol–Gel Synthesized Zinc Oxide Nanoparticles Using XRD and UV-Visible Techniques","authors":"Muzaffar Iqbal Khan, Gambheer Singh Kathait, Majahid Ul Islam, Feroz Ahmad Mir, Ali Ashgar Shah, Ishfaq Ahmed, Pooja Khajuria, Rayees Ahmad Zargar, Trilok Chandra Upadhyay","doi":"10.1134/S1063783424601516","DOIUrl":"10.1134/S1063783424601516","url":null,"abstract":"In this paper, we have synthesized zinc oxide (ZnO) nanoparticles using the sol–gel method. Zinc acetate dihydrate ({text{Zn(C}}{{{text{H}}}_{3}}{text{C}}{{{text{O}}}_{2}}{{{text{)}}}_{2}}cdot2{{{text{H}}}_{2}}{text{O}}), sodium hydroxide (NaOH) were used as a basic precursors for the synthesis. The synthesized crystalline powder was characterized by X-ray diffraction (XRD). The XRD studies explain that zinc oxide nanoparticles have a single phase with a wurtzite hexagonal structure. The theoretically calculated lattice parameters have obtained using the famous Scherrer equation and agree well accordance with the standard JCPDS card number. Various relevant physical parameters such as micro-strain, stress, energy density, and crystalline size have calculated by using the modified Williamson–Hall (W–H) assuming uniform deformation (UD) model, uniform stress deformation (USD) model and uniform deformation energy density (UDED) model. The root mean square (rms) lattice strain (leftlangle {{{varepsilon }_{{{text{rms}}}}}} rightrangle ) theoretically calculated from the interplanar spacing and strain estimated obtained the USD and UDED models are different due to consideration of anisotropic crystal nature. The obtained results shows that the average particle size of zinc oxide nanoparticles from Scherrer’s formula and the W–H method are the best intercorrelated. All the calculated physical parameters from the Willamson–Hall plot are tabulated, compared, and found to match well the value of bulk zinc oxide. Similarly for the synthesized ZnO nanoparticles, the optical properties were analyzed by UV-vis spectroscopy which confirmed the bandgap energy.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"128 - 139"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496846","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

Theoretical Design and Transmission Analysis of a One-Dimensional Inhomogeneous Photonic Loop Waveguide Network

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S106378342460208X

El-Aouni Mimoun, Ben-Ali Youssef, Rahou Zakarea, Bria Driss

{"title":"Theoretical Design and Transmission Analysis of a One-Dimensional Inhomogeneous Photonic Loop Waveguide Network","authors":"El-Aouni Mimoun, Ben-Ali Youssef, Rahou Zakarea, Bria Driss","doi":"10.1134/S106378342460208X","DOIUrl":"10.1134/S106378342460208X","url":null,"abstract":"We present a theoretical design for a photonic structure based on one-dimensional inhomogeneous p-erfect and defect loop waveguide network. The structure is composed of a segment of length d1 (where d1 = (d_{1}^{'} + d_{1}^{{''}})) connected to a loop of lengths d2 and d3 (where d2 = (d_{2}^{'} + d_{2}^{{''}}) and d3 = (d_{3}^{'} + d_{3}^{{''}})) and the permittivity of each piece of length di (i = 1, 2, 3) is different. We calculate the dispersion relation and transmission coefficient using the Green function method based on the interface response theory. The perfect loop waveguide generates photonic bandgaps depending on the number of cells and the structure parameters. The insertion of a defect in the structure generates defect modes inside the gaps. These defect modes can be precisely controlled in terms of frequency and transmission rate by tuning the length and permittivity of the defective segment. The proposed structure offers promising potential for the development of advanced photonic filters and other photonic devices.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"91 - 99"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496984","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

Ligand Deprotonation and Spin Crossover in Fe(II) Complex

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424602182

S. Ostrovsky, S. Klokishner

引用次数: 0

First-Principles Study of Pressure-Induced Structural Phase Transitions in BaZrO3

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424601632

Wenxia Feng

{"title":"First-Principles Study of Pressure-Induced Structural Phase Transitions in BaZrO3","authors":"Wenxia Feng","doi":"10.1134/S1063783424601632","DOIUrl":"10.1134/S1063783424601632","url":null,"abstract":"Perovskite BaZrO3 possesses higher phase stability from room temperature up to its melting point, yet pressure can induce phase transitions. However, detailed theoretical reports on pressure-induced transformations are scarce. We investigated the pressure-induced phase transition, elastic and electronic properties of BaZrO3 under high pressure using first-principles calculations. The findings reveal that BaZrO3 undergoes a series of structural transitions with increasing pressure, shifting from a cubic perovskite structure ((Pmbar {3}m)) to an orthorhombic structure (Cmcm), and subsequently to a tetragonal structure ((I4{text{/}}mcm)). These transitions occur at pressures of 3.5 and 20 GPa, respectively. The calculated transition pressure from Cmcm to (I4{text{/}}mcm) structure is consistent well with experimental values, and the predicted Cmcm structure should be further testified by future experimental study. At zero pressure, the mechanical stability of perovskite BaZrO3 is assessed through elastic constants. Additionally, all stable polymorphs of BaZrO3 remain insulating nature under high hydrostatic pressure. This investigation provides insight into the complex pressure-induced phase transformations in BaZrO3 and offers guidance for future experimental investigations and potential applications.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"104 - 110"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496872","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

Dielectric Diffusive and Relaxor Behaviour of SrO Substituted BCZT Ceramics

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424602054

Srimannarayana Kola, K. V. Ramesh, D. Venkatesh, G. V. Swamy, T. Durga Rao, Md Haleema

引用次数: 0

Sol–Gel Synthesis and Antibacterial Effects of a Nano-Enhanced Cd Doped ZnO Nanorod Conjugate

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424601401

N. Sheen Kumar, S. R. Gibin, Kumar Govindhasamy, A. Mariappan, A. Muthuvel, Rafa Almeer

{"title":"Sol–Gel Synthesis and Antibacterial Effects of a Nano-Enhanced Cd Doped ZnO Nanorod Conjugate","authors":"N. Sheen Kumar, S. R. Gibin, Kumar Govindhasamy, A. Mariappan, A. Muthuvel, Rafa Almeer","doi":"10.1134/S1063783424601401","DOIUrl":"10.1134/S1063783424601401","url":null,"abstract":"In this work, ZnO and Cd doped ZnO nanorods (NRs) were synthesized using a hydrazine-assisted sol–gel method, followed by two annealing at temperatures (300 and 500°C). X-ray diffraction (XRD) analysis confirmed that the samples possess a hexagonal wurtzite crystalline structure. Transmission electron microscopy (TEM) revealed that the Cd doped ZnO nanoparticles are rod-shaped. X-ray photoelectron spectroscopy (XPS) indicated that Cd2+ ions successfully substituted into the Zn lattice. Photoluminescence (PL) analysis showed intense UV-region luminescence at 500°C due to Zn and oxygen vacancies and defects. These results suggest that Cd doped ZnO NRs annealed at 500°C could be promising candidates for next generation UV detectors. Furthermore, the antibacterial tests demonstrated that Cd2+ incorporation significantly enhanced that antibacterial effects of ZnO NRs, particularly against S. aureus (15 ± 0.85 mm) and E. coil (14 ± 0.71 mm) under light exposure. Thus, Cd-doped ZnO NRs offer great potential as an alternative antibacterial materials, especially in biomedical applications.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"111 - 119"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496873","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

Dependence of Raman Spectra of Complexes of Polyvinyl Alcohol with CdS and I2 on the Polarization of Exciting Radiation and Temperature

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424602042

I. Yu. Prosanov, A. A. Sidel’nikov, V. A. Volodin

引用次数: 0

Impact of Copper Substitution on the Structural Refinement, Magnetic Behaviour, and Dielectric Response of Ni–Zn Spinel Ferrites

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424602078

Arti A. Ingle, Akash V. Fulari, Rameshwar B. Borade, S.B. Kadam, V. D. Mote, A. B. Kadam, Sagar E. Shirsath, R. H. Kadam

{"title":"Impact of Copper Substitution on the Structural Refinement, Magnetic Behaviour, and Dielectric Response of Ni–Zn Spinel Ferrites","authors":"Arti A. Ingle, Akash V. Fulari, Rameshwar B. Borade, S.B. Kadam, V. D. Mote, A. B. Kadam, Sagar E. Shirsath, R. H. Kadam","doi":"10.1134/S1063783424602078","DOIUrl":"10.1134/S1063783424602078","url":null,"abstract":"Ni0.5Zn0.5−xCuxFe2O4 (x = 0, 0.05, 0.1, 0.15, 0.2, 0.25) spinel ferrite nanoparticles were synthesized via the sol-gel auto-combustion method and sintered at 700°C for 5 h. Thermogravimetric and differential thermal analysis (TG-DTA) revealed the thermal decomposition behaviour. Single phase ferrite with Fd‑3m space group was confirmed by the Rietveld refinement of X-ray diffraction data. The distribution of cation among octahedral B and tetrahedral A-site was estimated by the computational method. With increasing copper substitution, the lattice parameter decreased while X-ray density increased. Crystallite sizes ranged from 22 to 24 nm, consistent with the Williamson–Hall method, and strain decreased. Fourier-transform infrared (FTIR) spectroscopy confirmed the spinel structure. High-resolution transmission electron microscopy (HR-TEM) and field emission scanning electron microscopy (FE-SEM) showed grain sizes between 70 and 130 nm. Energy dispersive X-ray (EDAX) analysis confirmed chemical purity. Magnetic studies showed an increase in saturation magnetization and coercivity (42 to 57 Oe) with copper substitution, while dielectric behaviour followed the Maxwell–Wagner model.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"148 - 163"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496847","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

The Impact of Electric and Magnetic Fields on the Quantum Capacitance of Monolayer Germanene

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-27 DOI: 10.1134/S1063783424601978

Do Muoi

{"title":"The Impact of Electric and Magnetic Fields on the Quantum Capacitance of Monolayer Germanene","authors":"Do Muoi","doi":"10.1134/S1063783424601978","DOIUrl":"10.1134/S1063783424601978","url":null,"abstract":"In this work, we present the theory of quantum capacitance in two-dimensional buckled germanene. Germanene is a material with a natural bandgap and strong spin–orbit interaction, offering significant advantages over graphene. The results of this study reveal the behavior of the quantum capacitance in response to variations in the spin–orbit interaction and electric field. The capacitance in each valley can be adjusted with the electric field, shifting from a minimum to a maximum as the external gate voltage is applied. The total capacitance, derived from both the K and K ′ valleys, shows a tunable band gap at ({{E}_{{text{F}}}} = 0). When the electric field energy ({{Delta }_{z}} = 2{{{{lambda }}}_{{{text{so}}}}}), the capacitance is zero at ({{E}_{{text{F}}}} = 0), whereas the electric field energy ({{Delta }_{z}} = {{{{lambda }}}_{{{text{so}}}}}), the capacitance reaches maximum with a single peak at ({{E}_{{text{F}}}} = 0) and electron–hole symmetric spectrum. As the electric field affects the band structure, the spin-up states retain their energy gap, whereas the spin-down states converge. Shubnikov–de Haas oscillations in quantum capacitance are also observed, showing a be-ating pattern at low magnetic fields that disappears as the electric field dominates. At higher magnetic fields, the splitting of the oscillations becomes evident. The disappearance of beating pattern and subsequent oscillation splitting are attributed to the interplay between the spin–orbit interaction, electric field, and magnetic field.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"85 - 90"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496983","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

Impact of Swift Heavy Ion Irradiation on Nano Zinc Silicate Decomposition at the ZnO–Si Junction

IF 0.9 4区物理与天体物理

Physics of the Solid State Pub Date : 2025-02-14 DOI: 10.1134/S1063783424601759

Sanjeev Kumar, Amit Jain, Manohar Singh

引用次数: 0