Results in Physics最新文献

{"title":"Photoacoustic and plasmaelastic waves propagation in semiconductor medium heated by pulsed excitation with magnetic field effect","authors":"Hashim M. Alshehri ,&nbsp;Khaled Lotfy","doi":"10.1016/j.rinp.2024.108053","DOIUrl":"10.1016/j.rinp.2024.108053","url":null,"abstract":"<div><div>Semiconductor materials play a crucial role in the fields of science, engineering, and technology due to their high importance. In this work, photoelastic (PE) deformations due to the photonically excited processes are studied according to the photogenerated carriers (plasma waves) during the recombination processes. A photoacoustic theoretical model for the optically excited Silicon (Si) polymer material under the effect of magnetic field is introduced. The coupled between the acoustic and plasm-thermomechanical waves is considered. The governing equation according to the photo-thermoelasticity theory with acoustic pressure is derived. The optoelectronic and thermoelastic properties of semiconductor material are taken into account. The analytical expression of the main physical fields (temperature, mechanical stress, displacement, carrier density, and acoustic pressure) is obtained mathematically using the harmonic wave technique. The theoretical results are represented graphically due to the strength of the magnetic field in two and three dimensions (2D and 3D) and some comparisons are investigated.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108053"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asymptotic normalization coefficients for 11B + p → 12C from the 11B(10B, 9Be)12C reaction and the 11B(p, γ)12C astrophysical S-factor","authors":"S.K. Sakhiyev ,&nbsp;S.V. Artemov ,&nbsp;N. Burtebayev ,&nbsp;S.B. Sakuta ,&nbsp;S.B. Igamov ,&nbsp;Maulen Nassurlla ,&nbsp;K. Rusek ,&nbsp;M. Wolińska-Cichocka ,&nbsp;N. Amangeldi ,&nbsp;Marzhan Nassurlla ,&nbsp;A. Trzcińska ,&nbsp;G. Yergaliuly ,&nbsp;F.Kh. Ergashev ,&nbsp;O.R. Tojiboev ,&nbsp;I.Ya. Son ,&nbsp;A. Sabidolda ,&nbsp;R. Khojayev ,&nbsp;Y.B. Mukanov ,&nbsp;D.A. Issayev","doi":"10.1016/j.rinp.2024.108050","DOIUrl":"10.1016/j.rinp.2024.108050","url":null,"abstract":"<div><div>The ¹¹B(¹⁰B,⁹Be)¹²C reaction was studied at the energy of 41.3 MeV with transitions to the ground (0⁺) and low-lying excited 4.44 MeV (2⁺) and 9.64 MeV (3⁻) states of ¹²C nucleus. The analysis of the measured angular distributions was carried out using a modified distorted wave (MDWBA) method, assuming a one-step proton transfer mechanism. It was shown that at small angles (in the region of the main diffraction maximum) this reaction occurs on the nuclear surface with the dominance of a one-step process. This made possible to determine the values of asymptotic normalization coefficients (ANC) for ¹¹B + <em>p</em> → ¹²C. The squared ANCs equal to 322 ± 76 fm⁻¹, 32.8 ± 8.4 fm⁻¹ and 1.26 ± 0.44 fm⁻¹ for 0⁺, 2⁺ and 3⁻ states of the ¹²C nucleus respectively were obtained. These values were used to take into account the contribution of the direct process in the calculation of astrophysical <em>S</em>-factors for the radiative capture of a proton by the ¹¹B nucleus at astrophysical energies.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108050"},"PeriodicalIF":4.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorine-doped cobalt ferrite integrated into 2D MXene with extended solar spectrum response and boosted charge separation for the removal of recalcitrant organic pollutants","authors":"Adnan Rasheed ,&nbsp;Mohamed E. El Sayed ,&nbsp;Sheraz Yousaf ,&nbsp;Ahmed Samir ,&nbsp;Muhammad Farooq Warsi ,&nbsp;Zeinhom M. El-Bahy","doi":"10.1016/j.rinp.2024.108049","DOIUrl":"10.1016/j.rinp.2024.108049","url":null,"abstract":"<div><div>In investigating sustainable methodologies for removing recalcitrant organic pollutants from wastewater, visible-light-responsive photocatalysis has drawn considerable interest. Therefore, intentionally engineered photocatalysts with enhanced solar-light-absorption capacity and boosted charge carrier’s separation are highly demanded. In the present attempt, pure cobalt ferrite (CoFe₂O₄) and its fluorine-doped counterpart (F-CoFe₂O₄) were fabricated via co-precipitation. The fluorine-doped material was integrated into the 2D MXene to design the composite (F-CoFe₂O₄@MXene) by the ultrasonication method. The structure, surface morphology, chemical composition, and optical properties of the as-prepared catalysts were characterized by various techniques, including powder XRD, FTIR, SEM, EDS, UV–vis absorption, and photoluminescence spectroscopy. The photocatalytic potential was estimated by degrading crystal violet (CV) dye and benzoic acid (BA), which were selected as model pollutants. The composite material showcases significantly enhanced catalytic efficiency relative to the pure and doped materials. Under solar light exposure for 140 min, 91 % (0.0138 min⁻¹) and 87 % (0.0133 min⁻¹) of CV and BA degradation were achieved, respectively. The remarkable catalytic potential of the composite material corresponds to the fluorine doping and integration to the 2D MXene, which has enhanced its visible-light absorption and lowered the rapid recombination rate of the separated charges (e^-/h⁺). Systematic studies, including reaction kinetics, dominating catalytic species in photodegradation, and stability of the catalyst, were followed through to disclose the photocatalytic potential of the designed F-CoFe₂O₄@MXene. Furthermore, the real-time applicability of the catalyst has been explored.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108049"},"PeriodicalIF":4.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and analysis of ZnO nanoflower and nanorod structures to improve superhydrophobicity using myristic acid","authors":"Ban Hamdan Al-Mulla ,&nbsp;Haider Abdulelah ,&nbsp;A. Nawabjan ,&nbsp;S.M. Hussin ,&nbsp;Ahmad Irfan ,&nbsp;Md. Ferdous Rahman","doi":"10.1016/j.rinp.2024.108051","DOIUrl":"10.1016/j.rinp.2024.108051","url":null,"abstract":"<div><div>This study investigates the improvement of superhydrophobicity in ZnO nanoflowers and nanorods through modification with myristic acid (MA). ZnO nanostructures were synthesized via hydrothermal and sol–gel methods, then combined with varying MA weight percentages (2–20 %) to create a ZnO/MA composite. X-ray diffraction and FTIR analyses confirmed the crystalline structure of ZnO and the bonding between ZnO and MA. FESEM imaging showed the nanoflower and nanorod morphologies of ZnO covered with MA. The optimal results revealed that MA-modified ZnO NFs and NRs achieved maximum water contact angles of 166° and 158°, respectively, indicating that MA’s shorter carbon chain can produce a denser coating, enhancing superhydrophobic properties and offering potential for self-cleaning applications.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108051"},"PeriodicalIF":4.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling of laser beam absorption on rough surfaces, powder beds and sparse powder layers","authors":"Giandomenico Lupo ,&nbsp;Martin Niemann ,&nbsp;Christoph Goniva ,&nbsp;Wojciech Szmyt ,&nbsp;Xiao Jia ,&nbsp;Vladyslav Turlo","doi":"10.1016/j.rinp.2024.108043","DOIUrl":"10.1016/j.rinp.2024.108043","url":null,"abstract":"<div><div>The energy transfer from a laser beam source to material surfaces with arbitrary geometrical features and variable surface roughness is the crucial step in many high-end engineering applications. We propose two models capable of predicting this energy transfer, applicable in different scenarios. The first is a high-fidelity numerical framework for the simulation of laser beam interaction with rough surfaces, which includes meshed geometry of arbitrary shape and material Lagrangian particles. The method discretizes the laser source as a collection of photon-type immaterial Lagrangian particles (Discrete Element Method) and is able to capture the effects of multiple reflections, angle-dependent reflectivity, and polarization change. Simulations were performed on a geometry reconstructed from a rough copper sample to reveal the impact of the polarization effects. This method is generally applicable to any surface where the effects of inelastic light scattering are not expected to play a significant role. The second model is a novel phenomenological correlation specifically designed to predict the effective reflectivity of sparse powder layers, which occur for example when metal vapor is recondensed and redeposited on the substrate during laser welding. The correlation is compared to the predictions obtained from the simulation framework and has been favorably compared to experimental data in a separate publication.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108043"},"PeriodicalIF":4.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shrink effects on nanoscale MOS capacitor in visible and NIR spectral Ranges","authors":"Jeremy Belhassen ,&nbsp;Avraham Chelly ,&nbsp;Avi Karsenty","doi":"10.1016/j.rinp.2024.108044","DOIUrl":"10.1016/j.rinp.2024.108044","url":null,"abstract":"<div><div>This research explores the influence of visible and near-infrared light on the electrical characteristics of nanoscale MOS capacitors, examining the effects of light intensity and spectral composition. Photon absorption within the device stimulates an enhancement of the inversion electron layer. A spectral analysis encompassing the ultraviolet to near-infrared range (400–1100 nm) is presented. Research on nanoscale devices of this nature can contribute to a profound understanding of fundamental light-matter interactions at the atomic and molecular scale. This knowledge can pave the way for the development of novel optoelectronic coupled devices, which combine light trigger and electronic functionalities. These devices, when integrated in Photonics Integrated Circuits (PICs), could have applications in areas such as solar cells, photodetectors, and future ultrasmall electronic components.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108044"},"PeriodicalIF":4.4,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing the structural, optical, dielectric, and electrical properties of polyvinyl alcohol/polyvinyl pyrrolidone/zinc manganite nanocomposites for optical and energy storage applications","authors":"Maha A. Alqarni ,&nbsp;A. Rajeh","doi":"10.1016/j.rinp.2024.108045","DOIUrl":"10.1016/j.rinp.2024.108045","url":null,"abstract":"<div><div>This study investigates the structural, dielectric, optical, and electrical properties of eco-friendly polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) matrices embedded with zinc manganite nanoparticles (ZnMn₂O₄NPs). The nanocomposites films were prepared using a casting method for potential applications in flexible electrochemical devices. FTIR spectroscopy confirmed the successful incorporation of ZnMn₂O₄NPs into the polymeric matrix. UV–Vis absorption analysis revealed an increase in absorbance with increasing ZnMn₂O₄ nanoparticle content. Among the various blend nanocomposites, the lowest bandgap energy was observed for the sample containing 2.5 %ZnMn₂O₄ NPs. Measurements of electrical conductivity, dielectric characteristics, and complex impedance were made for all prepared films. The findings showed that as frequency and nanofiller concentration increased, so did AC conductivity and dielectric characteristics. Overall, the PVA/PVP-2.5 % ZnMn₂O₄ nanocomposite exhibited superior properties compared to the pure polymer blend. This sample demonstrated optimal electrical conductivity and dielectric constant. These findings suggest that by carefully adjusting the ZnMn₂O₄ concentration, it is possible to fine-tune the dielectric, optical, and electrical properties of these nanocomposite films. This versatility offers promising potential for applications in optoelectronic devices, energy storage devices, and nanodielectric materials.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108045"},"PeriodicalIF":4.4,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling the propagation dynamics of radially polarized anomalous vortex beams in turbulent maritime atmospheres","authors":"Hassan Al-Ahsab ,&nbsp;Mingjian Cheng ,&nbsp;Yuancong Cao ,&nbsp;ShuaiLing Wang ,&nbsp;Xiang Yi ,&nbsp;Lixin Guo","doi":"10.1016/j.rinp.2024.108038","DOIUrl":"10.1016/j.rinp.2024.108038","url":null,"abstract":"<div><div>Based on the unified theory of coherence-polarization, we utilize the extended Huygens-Fresnel principle to derive analytical expressions for the average intensity distribution of a radially polarized anomalous vortex beam (RPAVB) propagating through non-Kolmogorov maritime atmospheric turbulence. The hollow structure of the RPAVB can be sustained over long distances by manipulating the self-focusing point position, which depends on the initial beam parameters. This manipulation effectively mitigates the effect of maritime atmospheric turbulence. Additionally, the RPAVB undergoes a transition into a Gaussian form at significant distances, which can be intentionally slowed down by increasing the beam order, topological charge, beam width, or reducing the turbulent strength.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108038"},"PeriodicalIF":4.4,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of the 116Sn(18O, 18Ne)116Cd double charge exchange reaction at 276 MeV","authors":"C. Eke ,&nbsp;I. Ciraldo ,&nbsp;F. Cappuzzello ,&nbsp;D. Carbone ,&nbsp;M. Cavallaro ,&nbsp;V. Soukeras ,&nbsp;A. Spatafora ,&nbsp;C. Agodi ,&nbsp;I. Boztosun ,&nbsp;G.A. Brischetto ,&nbsp;D. Calvo ,&nbsp;A. Hacisalihoglu ,&nbsp;G. Lanzalone ,&nbsp;R. Linares ,&nbsp;N.H. Medina ,&nbsp;J.R.B. Oliveira ,&nbsp;A. Pakou ,&nbsp;L. Pandola ,&nbsp;O. Sgouros ,&nbsp;S. Tudisco ,&nbsp;V.A.B. Zagatto","doi":"10.1016/j.rinp.2024.108037","DOIUrl":"10.1016/j.rinp.2024.108037","url":null,"abstract":"<div><div>The measurement of the ¹¹⁶Sn(¹⁸O, ¹⁸Ne)¹¹⁶Cd double charge exchange reaction cross section at very forward angles was performed for the first time at INFN-LNS using the MAGNEX magnetic spectrometer. This study, carried out at 276 MeV beam energy, provides a cross section of 34 nb ([9, 44] nb at 95% confidence level), confirming the tiny values recently obtained for the same reaction in other nuclides. This result has a major impact on the forthcoming systematic investigation of <span><math><mrow><mn>0</mn><mi>ν</mi><mi>β</mi><mi>β</mi></mrow></math></span> decay candidates carried out by the NUMEN project, since it allows to properly tailor future experiments with high-intensity beams. The ultimate goal of this exploration is to experimentally access information about nuclear matrix elements relevant to the <span><math><mrow><mn>0</mn><mi>ν</mi><mi>β</mi><mi>β</mi></mrow></math></span> decay rate.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108037"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of a laser pulse on thermoelasticity with temperature dependence under the dual-phase-lag model using improved modified extended tanh function method","authors":"Wafaa B. Rabie ,&nbsp;Hamdy M. Ahmed ,&nbsp;Abdallah A. Syied ,&nbsp;Assmaa Abd-Elmonem ,&nbsp;Nagat A.A. Suoliman ,&nbsp;Mohamed F. Ismail","doi":"10.1016/j.rinp.2024.108029","DOIUrl":"10.1016/j.rinp.2024.108029","url":null,"abstract":"<div><div>In this paper, the improved modified extended tanh function method (IMETFM) is introduced for analyzing the influence of laser pulse on a thermo-elastic with temperature-dependence under a dual phase lag model (DPL). Nonlinear thermo-elasticity examines cases in which a material’s response to changing thermal loads causes considerable changes in both its geometry and material properties. This field is crucial for effectively describing real-world phenomena, such as thermal stresses in large-scale structures, the behavior of materials at high temperatures, and the intricate interactions between mechanical and thermal fields. The proposed method generated a variety of exact solutions featuring distinct free parameters, including hyperbolic, rational, bright solitons, singular solitons, dark solitons, exponential, polynomial, and Jacobi elliptic solutions. Additionally, some of the results for displacement component, temperature, and stress tensor are presented through graphical illustrations.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"67 ","pages":"Article 108029"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}