Results in Physics最新文献

Numerical solution of coupled fractional Ginzburg–Landau equations under Caputo–Hadamard derivative Caputo-Hadamard导数下分数阶耦合金兹堡-朗道方程的数值解

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-26 DOI: 10.1016/j.rinp.2025.108448

F. Rostami , M.H. Heydari , M. Bayram , D. Baleanu

引用次数: 0

On the WKB approximation for the spinless Salpeter equation 无自旋Salpeter方程的WKB近似

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-26 DOI: 10.1016/j.rinp.2025.108456

Y. Chargui , S. Boulaaras , M.A.J. Mohamed

引用次数: 0

Spin-orbit tuned optoelectronics in magnetized germanene 磁化锗烯的自旋轨道调谐光电子学

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-25 DOI: 10.1016/j.rinp.2025.108443

Farshad Azizi , Hamed Rezania

{"title":"Spin-orbit tuned optoelectronics in magnetized germanene","authors":"Farshad Azizi , Hamed Rezania","doi":"10.1016/j.rinp.2025.108443","DOIUrl":"10.1016/j.rinp.2025.108443","url":null,"abstract":"<div><div>This study investigates the optoelectronic properties of Germanene, a two dimensional honeycomb lattice material, under the influence of spin–orbit coupling (SOC) and external magnetic fields. Utilizing the Kane–Mele model, we incorporate tight-binding, intrinsic SOC, and Zeeman interactions to describe the electronic band structure. The Green’s function approach is employed to compute optical conductivity, dielectric function, refractive index, and absorption coefficient, highlighting the impact of SOC-induced bandgap opening and magnetic field effects. Our findings reveal that SOC enhances optical absorption and tunes plasmonic excitations, making Germanene a promising candidate for advanced optoelectronic devices, such as photodetectors and optical modulators. Germanene’s operational spectrum spans infrared (0–1.65 eV) to visible (1.65–2 eV), with model-predicted advantages over graphene/silicene including enhanced IR tunability via stronger SOC (43 meV gap) and field-sensitive plasmonics, enabling superior photodetection efficiency and modulation capabilities. The results underscore the potential of Germanene in spintronics and valleytronics, driven by its tunable electronic and optical properties.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"77 ","pages":"Article 108443"},"PeriodicalIF":4.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159557","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}

引用次数: 0

Ultrahigh-sensitivity D-shaped PCF-SPR biosensor with TiO2–Au hybrid layers for precise detection of blood constituents 具有TiO2-Au杂化层的超高灵敏度d形PCF-SPR生物传感器，用于精确检测血液成分

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-25 DOI: 10.1016/j.rinp.2025.108463

Mohammad Azadi , Mahmood Seifouri , Saeed Olyaee , Masoud Mohammadi

{"title":"Ultrahigh-sensitivity D-shaped PCF-SPR biosensor with TiO2–Au hybrid layers for precise detection of blood constituents","authors":"Mohammad Azadi , Mahmood Seifouri , Saeed Olyaee , Masoud Mohammadi","doi":"10.1016/j.rinp.2025.108463","DOIUrl":"10.1016/j.rinp.2025.108463","url":null,"abstract":"<div><div>Plasmonic biosensors based on photonic crystal fibers (PCF-SPR) have emerged as promising candidates for highly sensitive and real-time biomedical detection. In this study, we propose and numerically investigate a novel D-shaped PCF-based plasmonic biosensor incorporating a thin gold layer as the plasmonic medium and an optimized titanium dioxide (TiO<sub>2</sub>) dielectric interlayer. This configuration significantly enhances light-metal interaction, improves mode confinement, and strengthens surface plasmon resonance (SPR) coupling efficiency. Three-dimensional finite element method (FEM) simulations are employed to examine the influence of critical design parameters, including the thicknesses of Au and TiO<sub>2</sub> layers, air-hole diameters and arrangement, and analyte refractive index (RI) variations, on resonance wavelength and confinement loss. The proposed sensor achieves an outstanding wavelength sensitivity (S<sub>λ</sub>) of 14,000 nm/RIU, amplitude sensitivity (S<sub>A</sub>) of 610 RIU<sup>−1</sup>, and a resolution of 1.4 × 10<sup>−2</sup> RIU within the analyte RI range of 1.33–1.40. These performance metrics enable the discrimination of blood constituents such as water, plasma, hemoglobin, and red and white blood cells, even under conditions of closely matched refractive indices. The findings highlight the remarkable potential of PCF-SPR biosensors for rapid and precise blood analysis, offering new avenues for the advancement of next-generation biomedical diagnostic platforms.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"77 ","pages":"Article 108463"},"PeriodicalIF":4.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159552","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}

引用次数: 0

Universal programmable logic gate based on quantum-dot cellular automata for enhancing reliability and efficiency of digital systems 基于量子点元胞自动机的通用可编程逻辑门提高数字系统的可靠性和效率

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-23 DOI: 10.1016/j.rinp.2025.108454

Jun-Cheol Jeon

{"title":"Universal programmable logic gate based on quantum-dot cellular automata for enhancing reliability and efficiency of digital systems","authors":"Jun-Cheol Jeon","doi":"10.1016/j.rinp.2025.108454","DOIUrl":"10.1016/j.rinp.2025.108454","url":null,"abstract":"<div><div>As quantum-dot cellular automata (QCA) is gaining attention as a next-generation circuit technology, various logic circuits using QCA are being developed. The performance of digital logic circuits depends on the performance of basic logic gates, and the development of efficient universal gates improves the reliability and efficiency of digital systems by reducing the types of basic logic gates. This study proposes an efficient QCA-based universal programmable logic (UPL) gate that can perform not only NAND and NOR, which are well-known as universal gates, but also XOR and XNOR, which have complex structures of 2-level logic gates, with a single gate. A variety of combinational logic circuits are designed using the proposed UPL gate, and it is demonstrated that it operates as a universal gate and is scalable. Furthermore, the average output polarization is highly stable, exceeding 9.5, and it demonstrates a significant 44% improvement in design cost compared to the best existing QCA-based universal gate. These efforts ultimately lead to the simplification of the design and process of digital systems, which reduces the number of points of failure and reduces the manufacturing cost.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"77 ","pages":"Article 108454"},"PeriodicalIF":4.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159559","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}

引用次数: 0

Atomic and molecular data for electron-driven collisional processes in weakly ionized media and astrophysical plasmas 弱电离介质和天体物理等离子体中电子驱动碰撞过程的原子和分子数据

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-23 DOI: 10.1016/j.rinp.2025.108455

Vladimir A. Srećković , Violeta Petrović , Hristina Delibašić-Marković , Jelena Maljković , Sanja Tošić

{"title":"Atomic and molecular data for electron-driven collisional processes in weakly ionized media and astrophysical plasmas","authors":"Vladimir A. Srećković , Violeta Petrović , Hristina Delibašić-Marković , Jelena Maljković , Sanja Tošić","doi":"10.1016/j.rinp.2025.108455","DOIUrl":"10.1016/j.rinp.2025.108455","url":null,"abstract":"<div><div>This paper highlights the increasing importance of atomic and molecular data for interpretation, diagnostics, and the development of models and simulations of complex physical processes. Specifically, we focus on the analysis of collisional processes, i.e., electron-driven processes which involve small molecules such as hydrogen, helium, lithium, and molecular ions, all of which play an important role in modeling various systems. Accurate data allows for the simulation of spectral properties and other characteristics. We have calculated dissociative recombination rate coefficients across a wide range of parameters (<span><math><mrow><mn>3</mn><mo>≤</mo><mi>n</mi><mo>≤</mo><mn>20</mn></mrow></math></span> and <span><math><mrow><mn>500</mn><mi>K</mi><mo>≤</mo><mi>T</mi><mo>≤</mo><mrow><mn>30</mn><mo>,</mo><mn>000</mn></mrow><mi>K</mi></mrow></math></span>), providing valuable datasets applicable to multiple scientific fields. The analysis of these rates offers insights into the presence of molecular ions and provides information on excited-state populations, ionization levels, and optical properties in weakly ionized media and cold astrophysical plasmas. These findings enhance our understanding of chemistry and modeling of such environments.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"77 ","pages":"Article 108455"},"PeriodicalIF":4.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159555","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}

引用次数: 0

Deterministic generation of single dissipative Kerr solitons in a microresonator by continuous-wave triggering 连续波触发微谐振腔中单耗散克尔孤子的确定性产生

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-23 DOI: 10.1016/j.rinp.2025.108453

Wei Wu , Dongmei Huang , Jie Xu , Feng Li , P.K.A. Wai

引用次数: 0

Comparative study of different vortex generator designs in corrugated channel for turbulent heat transfer enhancement 不同设计的波纹通道涡流发生器增强湍流换热的比较研究

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-22 DOI: 10.1016/j.rinp.2025.108450

Aimen Tanougast , Rachid Bessaih , Krisztián Hriczó

{"title":"Comparative study of different vortex generator designs in corrugated channel for turbulent heat transfer enhancement","authors":"Aimen Tanougast , Rachid Bessaih , Krisztián Hriczó","doi":"10.1016/j.rinp.2025.108450","DOIUrl":"10.1016/j.rinp.2025.108450","url":null,"abstract":"<div><div>In this study, we numerically investigated the enhancement of heat transfer and pressure drop characteristics using vortex generators (VGs) inside a corrugated channel. This study focuses on novel VG shapes: concave-up vortex generators (CUVGs), concave-down vortex generators (CDVGs), and straight vortex generators (SVGs). These shapes were chosen for consistency with the corrugated wall to guide the fluid more smoothly along the wall. The model was solved using ANSYS Fluent, a commercial software based on the finite volume method and known for its conservation properties. For the turbulence model, we used the SST k–ω model because of its accuracy in capturing the flow near the walls. The vortex generators had a significant effect on the thermal and hydraulic performance. They enhance heat transfer by directing the fluid toward the wall, increasing the local velocity, and reducing the thickness of the thermal boundary layer. The CUVGs exhibited a higher heat transfer enhancement, reaching 77% at a Reynolds number of 30,000, followed by the CDVGs and SVGs, albeit with pressure drop penalties. To balance these effects, the PEC showed that SVGs had the best balance, reaching approximately 0.94, which is close to one.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"77 ","pages":"Article 108450"},"PeriodicalIF":4.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159560","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}

引用次数: 0

Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods 用GASMAS和重量法研究水在纳米多孔氧化铝中的逃逸和侵入

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-22 DOI: 10.1016/j.rinp.2025.108446

Okky Maryana , Abdulaziz Aljalal , Samer Qari , Watheq Al-Basheer , Khaled Gasmi

引用次数: 0

Physics-Embedded autoencoder for solving broadband light field modulation with metasurfaces 物理-嵌入式自编码器解决宽带光场调制与超表面

IF 4.6 2区物理与天体物理

Results in Physics Pub Date : 2025-09-22 DOI: 10.1016/j.rinp.2025.108434

Siyuan Cheng , Hong Xu , Song Ye , Shuyuan Xiao , Wentao Zhang , Xiaowei Qu , Ming Chen , Wei Huang

引用次数: 0