Results in Physics最新文献

{"title":"International Advisory Board","authors":"","doi":"10.1016/S2211-3797(26)00069-0","DOIUrl":"10.1016/S2211-3797(26)00069-0","url":null,"abstract":"","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"83 ","pages":"Article 108643"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147600722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Contribution in exciton, donor and acceptor energy determining in a high-purity ZnS vapor-deposited layer","authors":"A. Arifa Hassan ,&nbsp;Almoustapha Aboubacar ,&nbsp;I. Halidou ,&nbsp;H. Peyre ,&nbsp;B. Fraisse ,&nbsp;S. Contreras ,&nbsp;S. Juillaguet ,&nbsp;O. Briot","doi":"10.1016/j.rinp.2026.108606","DOIUrl":"10.1016/j.rinp.2026.108606","url":null,"abstract":"<div><div>A thin layer of a high quality ZnS grown on a GaAs (001) substrate by MOCVD at 350°C and characterized by photoluminescence (PL) at 20 K and reflectivity (at 20 K) allowed us to determine the energy of free and bound excitons as well as those of the impurities present in our ZnS. By reflectivity we obtained two free excitons Ex and Ex(n = 2) respectively at 3.8017 and 3.8245 eV, showing a high quality of our layer. The energy levels of the impurities are assigned to bound excitons (D⁰X; A⁰X; eA⁰) and phonon replicas. Using the theory developed by Hopfield and by Sharma and Rodriguez, the transition at 3.7592 eV is attributed to a two electrons satellite (TES), using the hydrogenoid model. Taking the hydrogen model, we determined the value of the gap energy, Eg = 3.8321 eV.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108606"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147422323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Hardy’s non-locality in four-qubit state","authors":"Urjjarani Patel,&nbsp;K.V.S. Shiv Chaitanya","doi":"10.1016/j.rinp.2026.108594","DOIUrl":"10.1016/j.rinp.2026.108594","url":null,"abstract":"<div><div>Hardy’s non-locality provides a proof of the incompatibility between quantum mechanics and local realism without using Bell inequalities. While this argument has been extensively studied for two- and three-qubit systems, a detailed analysis of the four-qubit case is still lacking. In this work, we investigate Hardy’s non-locality for a four-qubit system within the standard two-setting framework. We explicitly construct the entangled state satisfying the Hardy conditions and determine the measurement settings that maximize the success probability.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108594"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Low temperature mechanical-dynamical behavior of commercially pure titanium under different thermal treatments","authors":"Henry A. Colorado ,&nbsp;Chinnathambi Karthik ,&nbsp;Sandra M. Restrepo Arcila ,&nbsp;Sergio Neves Monteiro ,&nbsp;Ada A. Ghilarducci ,&nbsp;Horacio R. Salva","doi":"10.1016/j.rinp.2026.108600","DOIUrl":"10.1016/j.rinp.2026.108600","url":null,"abstract":"<div><div>This research investigates the dynamic mechanical properties of Commercially Pure Titanium (CP-Ti) Grade 2, the relationship between its thermo-mechanical history, resulting microstructure, and anelastic behavior using the Mechanical Spectroscopy (Internal Friction) technique, supplemented by Transmission Electron Microscopy (TEM) and standard tensile testing, across four industrially relevant material states: the as-received (cold-worked) condition, stress-relieved (560 °C), fully annealed (600 °C), and the normalized/quenched (897 °C) state. Internal Friction (IF) spectra and anelastic modulus parameters were obtained in a vibrating reed apparatus between the temperatures of 100 K and 500°K (–173 °C and 227 °C) at a resonant mode frequency of 10³ Hz. The thermal treatments resulted in distinct microstructural evolution, ranging from the low-defect, high-crystallinity state of the annealed samples to a highly defective structure characterized by nanograins and deformation twins in the quenched material. Crucially, the normalizing/quenched sample exhibited the highest amplitude IF peaks (e.g., 350°K). These prominent peaks are attributed to energy dissipation at high-energy grain boundaries and complex dislocation-point defect interactions. Microstructural findings were obtained using transmission electron microscopy (TEM), which identified the presence of dislocations and nanograins. Hasiguti and Bordoni peaks were identified in the IF spectra. The findings establish a methodology for engineers to tailor the dynamic damping capacity and stiffness of CP-Ti for applications requiring stable performance under dynamic loads and cryogenic environments.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108600"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147423833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Multi-channel SERS enhancement using graphene-based trimeric molecule in triangular configuration","authors":"Hossein Hatefi Ardakani ,&nbsp;Ali Mehrdadian","doi":"10.1016/j.rinp.2026.108611","DOIUrl":"10.1016/j.rinp.2026.108611","url":null,"abstract":"<div><div>In this paper, a graphene-based trimeric plasmonic molecule with a triangular configuration is proposed for the multi-channel surface-enhanced Raman scattering (SERS). It is observed that the equilateral triangular nanoparticle arrangement provides multiple intense resonance channels with giant near-field enhancement at the three hot spots, fulfilling the single-molecule detection criteria, which makes it superior with respect to noble metal counterparts. The operating mechanism of the device is discussed based on the spherical multipoles, quantitatively illustrated by the normal electric field on the nanoparticle surface. The generated resonances can be reconfigured by applying different chemical potentials to the graphene shells. Furthermore, thanks to the wideband resonance excitation in the graphene material, the design can be extended to devices with other geometrical dimensions, suggesting the applicability of the sensor for a wide range of analyte detection. Importantly, the resonance generation is susceptible to geometrical symmetry, such that by opening the equilateral triangle vertex, the number of observed resonances increases. The multi-channel performance of the device can be employed for the precise detection of the mixture of the analytes with more certainty since the multiple frequencies and hot-spots increase respectively the chance of experiment double-checking and the molecule binding to the hot spot.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108611"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147422324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Multi-objective time-domain adjoint via temporal convolution for band-selective electromagnetic topology optimization","authors":"Mingyu Park ,&nbsp;Svetlana V. Boriskina ,&nbsp;Haejun Chung","doi":"10.1016/j.rinp.2026.108605","DOIUrl":"10.1016/j.rinp.2026.108605","url":null,"abstract":"<div><div>Adjoint-based topology optimization enables gradient computation for electromagnetic design from only two simulations, independent of problem size. Conventional frequency-domain adjoint methods suit single-frequency objectives but incur computational costs scaling linearly with spectral resolution for broadband design. Time-domain adjoint methods efficiently capture broadband responses, however, their native gradients integrate over the entire excitation bandwidth, preventing independent control of multiple spectral bands. Consequently, multi-band optimization requires separate forward-adjoint simulation pairs per band, eliminating the computational efficiency advantage.</div><div>We present a multi-objective time-domain adjoint method that computes band-selective gradients via temporal convolution of stored electromagnetic fields. By the convolution theorem, post-processing with band-pass filters isolates designated spectral content without additional simulations. We validate the method on three nanophotonic systems. First, a wavelength-division demultiplexer achieves 8.74<!--> <!-->s per iteration, outperforming conventional time-domain (14.32<!--> <!-->s) and frequency-domain (120<!--> <!-->s) methods. Second, a metalens demonstrates independently prescribed numerical apertures across four spectral bands with less than 5% focal length error. Third, a spectral router achieves 70%–75% routing efficiency, approximately <span><math><mrow><mn>2</mn><mo>×</mo></mrow></math></span> the theoretical limit of absorption-based designs. These results establish that convolution-enabled, band-selective gradients restore the computational advantage of time-domain adjoint optimization for multi-band electromagnetic design.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108605"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147423831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Localization–delocalization transition in the Generalized Aubry–André–Harper Model in a quasiperiodic superlattice potential","authors":"Zain Ullah ,&nbsp;Muhammad Sajid ,&nbsp;Amsyar Rahim ,&nbsp;Mohd Faudzi Umar ,&nbsp;Nurisya Mohd Shah","doi":"10.1016/j.rinp.2026.108590","DOIUrl":"10.1016/j.rinp.2026.108590","url":null,"abstract":"<div><div>We investigate localization–delocalization transition in the one-dimensional generalized Aubry–André–Harper (GAAH) model in a quasiperiodic superlattice potential. The critical interplay between the model’s two modulated energy scales — the hopping amplitude (<span><math><mi>t</mi></math></span>) and the on-site potential (<span><math><mi>Δ</mi></math></span>) — generates a rich phase diagram featuring extended, localized, and critical phases. We employ both static spectral and dynamics indicators to identify these phases. In static analysis, we compute the energy spectrum as a function of the common phase <span><math><mi>ϕ</mi></math></span> of the modulations and employ the inverse participation ratio (IPR) to map localization–delocalization phase diagram as a function of <span><math><mi>t</mi></math></span> and <span><math><mi>Δ</mi></math></span>. Dynamically, we model the evolution of an initially localized quantum state as a continuous-time quantum walk (CTQW), analyze the resulting probability distribution and time-dependent IPR to corroborate the static results. This work establishes a direct correspondence between static spectral indicators and dynamics, providing a unified framework for characterizing localization in quasiperiodic systems. Our findings offer new perspectives for controlling quantum transport in engineered quantum platforms.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108590"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Binocular thermal metalens for gesture recognition","authors":"Bo-Jyun Chen ,&nbsp;Yen-Chun Chen ,&nbsp;Chen-Yi Yu ,&nbsp;Qiu-Chun Zeng ,&nbsp;Chen-Fu Huang ,&nbsp;Chih-Chun Tan ,&nbsp;Wei-Lun Hsu ,&nbsp;Noreena Yi-Chin Liu ,&nbsp;Chih-Ming Wang","doi":"10.1016/j.rinp.2026.108592","DOIUrl":"10.1016/j.rinp.2026.108592","url":null,"abstract":"<div><div>This work presents a deep learning assisted thermal gesture recognition system based on three types of metasurface optics: monocular, achromatic, and binocular metalenses. The monocular and binocular designs are polarization-selective and fabricated using a scalable i-line lithography process with a simplified Pancharatnam–Berry phase approach, offering a low-cost yet effective solution for thermal imaging. In recognition tasks, the monocular and achromatic systems achieved accuracies of 92.76% and 94.80%, respectively. Importantly, the proposed binocular metalens, combined with a dual-channel convolutional neural network, achieved an accuracy of 98.85%, demonstrating enhanced robustness to low contrast and partial occlusions. These results highlight the synergistic potential of metasurface design and AI-based post-processing in advancing intelligent thermal sensing, with promising applications in human–machine interaction, AR/VR wearables, and low-cost thermal imaging platforms.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108592"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Estimation of Hall current infusion on blood filtration devices containing magnetized Cosserat fluids flow induced by metachronal transport system","authors":"A.A. Farooq ,&nbsp;Khurram Javid ,&nbsp;Sahar G. Tawfik ,&nbsp;Haifa A Alyousef ,&nbsp;Lamia Abu El Maati ,&nbsp;Mujeeb Ur Rehman","doi":"10.1016/j.rinp.2026.108601","DOIUrl":"10.1016/j.rinp.2026.108601","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Aim and Novelty&lt;/h3&gt;&lt;div&gt;Blood, being a conducting fluid, interacts with magnetic fields, allowing MHD principles to be used for pumping, separation, and filtration processes. Infusion of Hall current in magnetic fields has found numerous applications in monitoring these pumping, separation, and filtration systems. This novel characteristic enables the application of magnetohydrodynamic (MHD) principles in biomedical technologies, particularly in contactless pumping, filtration, and separation processes. This study captures these novel applications through mathematical modelling tools. When blood is induced by a sufficiently strong magnetic field, the Hall Effect emerges, introducing an additional current component that plays a significant role in monitoring and regulating these systems.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Mathematical modeling&lt;/h3&gt;&lt;div&gt;The problem to be modelled contains the magneto-hydrodynamic motion of a Cosserat fluid through a channel having a porous matrix and ciliated walls actuated by a transverse magnetic field. The model determines Lorentz body forces, Hall current effects, and micropolar property in which micro-rotational vectors are incorporated to expand the classical Navier-Stokes system to a nonlinear and coupled system of equations. With pathology, there exist internal blocks brought on by the deposit of substances like cholesterol, which require modelling using porous media like Darcy Brinkman structures. To make the problem analytically tractable, a long-wavelength calculation approximation in the creeping flow regime adopting the theory of lubrication approximation, is used. Galilean transformations are also used on a steady wave frame of reference, leading to the derivation of analytical expressions of axial velocity, micro-rotation component, pressure gradient, pressure rise flow rate, and stream function. The generalized model proposed herein uses the physiological flow properties to realize the key aspects of electromechanical, magneto-hydrodynamic pumping behavior, which provides a sound theoretical basis for the physiological and ionic fluid flows under non-Newtonian and magnetically driven conditions.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methodology&lt;/h3&gt;&lt;div&gt;The analytical technique is used to find the solution of rheological equations for flow features, such as velocity profile, microrotation, pressure gradient, flow rate, and streamlines.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Key Results&lt;/h3&gt;&lt;div&gt;The comparison between Newtonian and Cosserat fluids is also highlighted. When it comes to flow and trapping in MHD porous circumstances, the Cosserat fluid consistently outperforms the other fluids due to its microrotation and structural flexibility. The fluid velocity is sharply affected under magnetic influence.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Applications&lt;/h3&gt;&lt;div&gt;It is found that the implication of Hall current exhibits noticeable impacts on manipulating the real-world applications of magnetic fields in surgical, blood filtration, biomedical Pumping, and bl","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108601"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Theoretical and device-level insights into FASnBr3 perovskite solar cells: a synergistic approach Combining density functional theory and SCAPS-1D","authors":"Md Shah Nawaz Romel ,&nbsp;Rudhro Nil Mondal ,&nbsp;Fatema-Tuz-Zahra ,&nbsp;Md Rasidul Islam ,&nbsp;Sobhi M. Gomha ,&nbsp;Magdi E.A. Zaki ,&nbsp;Md Masud Rana","doi":"10.1016/j.rinp.2026.108593","DOIUrl":"10.1016/j.rinp.2026.108593","url":null,"abstract":"<div><div>In the present study, the lead-free organic–inorganic hybrid perovskite FASnBr₃, where FA represents formamidinium, is investigated as a promising solar absorber material with high photovoltaic performance and environmental sustainability. In response to the environmental and health concerns associated with lead-based perovskites, increasing attention has been directed toward the development of lead-free alternatives that can maintain excellent optoelectronic properties. This work focuses on the previously synthesized FASnBr₃ compound, with a detailed investigation of its structural and optoelectronic properties using density functional theory (DFT), alongside a comprehensive evaluation of FASnBr₃-based solar cell performance through SCAPS-1D numerical simulations. The DFT analysis reveals that FASnBr₃ possesses a direct bandgap of 1.775 eV and a high absorption coefficient, indicating its strong potential for photovoltaic applications. At the device level, multiple solar cell architectures were examined using SCAPS-1D by incorporating both inorganic and organic electron and hole transport layers. Specifically, WS₂, C₆₀, and PCBM were employed as electron transport layers (ETLs), while NiO, Cu₂O, PEDOT:PSS, and Spiro-MeOTAD were considered as hole transport layers (HTLs), with Au used as the back contact for all simulated devices. In total, twelve different device configurations were analyzed to identify the optimal structure for maximum power conversion efficiency (PCE). Key photovoltaic parameters, including open-circuit voltage (V_oc), short-circuit current density (J_sc), and fill factor (FF), were systematically evaluated by varying the combinations of ETLs, HTLs, and absorber layer thickness. The simulations indicate that an optimized absorber thickness of 600 nm, along with a defect density of 10¹⁵ cm⁻³ and a donor density of 10¹⁸ cm⁻³, leads to enhanced device performance. Among all the investigated configurations, the TCO/WS₂/FASnBr₃/Cu₂O/Au device exhibited the highest PCE of 19.80% compared to other ETL-HTL combinations. The corresponding photovoltaic parameters were also optimized, yielding a J_sc of 15.88 mA cm⁻², a V_oc of 1.530 V, and an FF of 88.50%. Furthermore, the operating temperature was varied to examine the thermal behavior and operational stability of FASnBr₃-based devices. Overall, the favorable physical, optical, and photonic properties of the lead-free FASnBr₃ perovskite, which has already been experimentally synthesized, together with the promising simulated photovoltaic performance, demonstrate that this material is a strong candidate for future solar cell development.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"82 ","pages":"Article 108593"},"PeriodicalIF":4.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}