Physica B-condensed Matter最新文献_第10页

Identification and monitoring platform for methanol adulteration in alcoholic beverages using porous silicon photonic structures: Possible implementation of AI platform 使用多孔硅光子结构的酒精饮料中甲醇掺假的识别和监测平台：AI平台的可能实现

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-16 DOI: 10.1016/j.physb.2026.418295

V. Castillo Gallardo , J.E. Frias-Castro , L.F. Ávalos-Ruiz , J. Campos Álvarez , J.F. Gómez Aguilar , V. Agarwal

{"title":"Identification and monitoring platform for methanol adulteration in alcoholic beverages using porous silicon photonic structures: Possible implementation of AI platform","authors":"V. Castillo Gallardo , J.E. Frias-Castro , L.F. Ávalos-Ruiz , J. Campos Álvarez , J.F. Gómez Aguilar , V. Agarwal","doi":"10.1016/j.physb.2026.418295","DOIUrl":"10.1016/j.physb.2026.418295","url":null,"abstract":"<div><div>The detection of methanol adulteration in alcoholic beverages remains a critical area of research due to its direct impact on public health and the well-being of the consumers. Methanol-contaminated alcohol can be identified via physical or chemical methods. Although the most commonly used technique is gas/liquid chromatography, the involvement of expensive equipment and professionals for data acquisition and interpretation makes it relatively inaccessible for many producers. This study involves the design, synthesis, and application of porous silicon-based photonic structures with multiple resonance modes for distinguishing between various alcoholic beverages. The spectral differences in their optical response additionally allow the detection of methanol adulteration. Based on the spectral differences observed for each adulterated alcoholic beverage, pattern recognition played a vital role in substance classification by facilitating the identification of unique characteristics within large datasets. This project employed spectroscopic data from adulterated samples of various beverages to apply machine learning techniques for the classification of different types of alcoholic drinks. The machine learning models achieved accuracies surpassing 90 % in the estimation of alcohol level in methanol adulterated beverages. The artificial neural network attained an accuracy exceeding 98 % on the test set, showcasing its capability in classifying the beverages on the basis of the experimental spectroscopic data.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418295"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Resonance properties and phase transformations of the antiferromagnet YFe3(BO3)4 反铁磁体YFe3(BO3)4的共振特性和相变

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2025-12-29 DOI: 10.1016/j.physb.2025.418215

Aleksandr D. Prokhorov , Roman Minikayev , Jan Lančok , Andrey Prokhorov

引用次数: 0

Aloevera–Assisted synthesis of Dy3+-doped zinc chromite nanoparticles: Structural, photoluminescence, and supercapacitor studies 芦荟辅助合成Dy3+掺杂锌铬铁矿纳米颗粒：结构、光致发光和超级电容器研究

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-17 DOI: 10.1016/j.physb.2026.418257

Priyanka M. , Vidya Y.S. , Manjunatha H.C. , Munirathnam R. , Manjunatha S. , Shivanna M. , Suman Kumar , Krishnakanth E.

{"title":"Aloevera–Assisted synthesis of Dy3+-doped zinc chromite nanoparticles: Structural, photoluminescence, and supercapacitor studies","authors":"Priyanka M. , Vidya Y.S. , Manjunatha H.C. , Munirathnam R. , Manjunatha S. , Shivanna M. , Suman Kumar , Krishnakanth E.","doi":"10.1016/j.physb.2026.418257","DOIUrl":"10.1016/j.physb.2026.418257","url":null,"abstract":"<div><div>In this study, Dysprosium-doped Zinc chromite nanoparticles (NPs) were synthesized via Exothermic Combustion Synthesis using <span><math><mrow><mi>A</mi><mi>l</mi><mi>o</mi><mi>e</mi><mi>v</mi><mi>e</mi><mi>r</mi><mi>a</mi></mrow></math></span> extract as a green fuel. The calcined samples (500 °C, 3 h) were thoroughly characterized. X-ray diffraction confirmed a pure cubic spinel structure with crystallite size decreasing from 14.42 nm to 11.18 nm as Dy content increased. Morphological analysis revealed randomly shaped nanoparticles and nanorods. The optical band gap narrowed from 3.12 eV to 3.03 eV. Photoluminescence spectra (<span><math><msub><mrow><mi>λ</mi></mrow><mrow><mi>e</mi><mi>x</mi></mrow></msub></math></span> = 275 nm) exhibited a strong emission at 567 nm, with concentration quenching beyond 5 mol%. Chromaticity and correlated color temperature analyses verified yellowish-green emission from Dy<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> ions, suitable for indoor lighting. Electrochemical studies, including cyclic voltammetry, elucidated the redox behavior and electrode kinetics. The specific capacitance varied from 79.28 F/g to 114.34 F/g, depending on dopant concentration. These findings highlight Dy<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span>-doped ZnCr<sub>2</sub>O<sub>4</sub> as a promising material for energy storage and display applications.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418257"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation of layer-dependent electronic, optical and thermoelectric transport properties of α-In2Se3 based on first principles calculations 基于第一性原理计算的α-In2Se3层相关电子、光学和热电输运性质研究

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-20 DOI: 10.1016/j.physb.2026.418308

Chanchal Jeengar , Tahir Ahmad , Kajal Jindal , Anjali Sharma , Sonia Chahar Srivastava , Monika Tomar , Pradip Kumar Jha

{"title":"Investigation of layer-dependent electronic, optical and thermoelectric transport properties of α-In2Se3 based on first principles calculations","authors":"Chanchal Jeengar , Tahir Ahmad , Kajal Jindal , Anjali Sharma , Sonia Chahar Srivastava , Monika Tomar , Pradip Kumar Jha","doi":"10.1016/j.physb.2026.418308","DOIUrl":"10.1016/j.physb.2026.418308","url":null,"abstract":"<div><div>Here, the electronic, optical and thermoelectric transport properties are studied using DFT for the bulk and the monolayer α-In<sub>2</sub>Se<sub>3</sub>. The electronic bandgap is observed to be 1.36 eV for the monolayer and 1.25 eV for the bulk α-In<sub>2</sub>Se<sub>3</sub> using HSE06 hybrid functional. The optical properties such as the dielectric constant, absorption coefficient, refractive index, birefringence, reflectivity, energy loss functions and optical conductivity were also studied for the bulk and the monolayer of α-In<sub>2</sub>Se<sub>3</sub>. It was also observed that bulk α-In<sub>2</sub>Se<sub>3</sub> exhibits a Seebeck coefficient of 850 μV/K and 1056 μV/K for monolayer α-In<sub>2</sub>Se<sub>3</sub> at 300 K indicating it as a potential room temperature layered thermoelectric material. Further, the electronic part of figure of merit, ZT<sub>e</sub> found to reach 103 for monolayer α-In<sub>2</sub>Se<sub>3</sub> and 104 for bulk α-In<sub>2</sub>Se<sub>3</sub> at 300 K. Further, the total figure of merit, ZT was found to be 1.64 for the n-type monolayer α-In<sub>2</sub>Se<sub>3</sub> at 300 K. The present work highlights the promising application of α-In<sub>2</sub>Se<sub>3</sub> in next generation sub-nm scale optoelectronic and thermoelectric devices.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418308"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 investigation of the annealing effect on quaternary Se-Te-Sn-Ag (STSA) thin films’ structural, morphological, optical, and electrical properties 退火对季系Se-Te-Sn-Ag （STSA）薄膜结构、形貌、光学和电学性能的影响

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-08 DOI: 10.1016/j.physb.2026.418267

Karthikeyan Kandhasamy , Shankar Harisingh , Pandian mannu , Shradha Suman , Kamatchi Jothiramalingam Sankaran , Chung-Li Dong , Han-Wei Chang , K. Asokan , Matheswaran Palanisamy , Gokul Bangaru

{"title":"The investigation of the annealing effect on quaternary Se-Te-Sn-Ag (STSA) thin films’ structural, morphological, optical, and electrical properties","authors":"Karthikeyan Kandhasamy , Shankar Harisingh , Pandian mannu , Shradha Suman , Kamatchi Jothiramalingam Sankaran , Chung-Li Dong , Han-Wei Chang , K. Asokan , Matheswaran Palanisamy , Gokul Bangaru","doi":"10.1016/j.physb.2026.418267","DOIUrl":"10.1016/j.physb.2026.418267","url":null,"abstract":"<div><div>This article comprehensively investigates the influence of thermal annealing on the stoichiometric efficacy of Se<sub>77.5-X</sub>Te<sub>20</sub>Sn<sub>2.5</sub>Ag<sub>X</sub> (X = 2.5, 5, and 7.5 at%)) thin films and reports modification and enhancement of structural, morphological, optical, and electrical properties through thermal annealing treatments. These findings show that annealing temperature influences the structural phase change from amorphous to crystalline, as well as the three different morphological growth formations (dewetting, nanocluster, and nanorod), which also influenced the decrease in surface roughness up to 0.712 nm, provided significant optical contrast, and linearly improved the electrical transition with decreasing resistivity. These synergetic effects on the STSA<sub>.7.5</sub> thin film reduced the optical band gap by up to 0.86 ± 0.02 eV and the electrical band gap by up to 0.011 eV, accompanied by a decrease in activation energy of 0.005 eV. This exploration of STSA<sub>X</sub> (X = 2.5, 5, and 7.5 at%) thin films could be promising for emerging electronic and optoelectronic applications.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418267"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Facile synthesis of Cobalt Oxide–Iron Oxide–Zinc Oxide thin films on glass: Optical characterization via spin coating 玻璃表面氧化钴-氧化铁-氧化锌薄膜的快速合成：自旋镀膜的光学表征

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-07 DOI: 10.1016/j.physb.2026.418265

Esra Kendir Tekgül

{"title":"Facile synthesis of Cobalt Oxide–Iron Oxide–Zinc Oxide thin films on glass: Optical characterization via spin coating","authors":"Esra Kendir Tekgül","doi":"10.1016/j.physb.2026.418265","DOIUrl":"10.1016/j.physb.2026.418265","url":null,"abstract":"<div><div>This study reports the synthesis of CoO, Fe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>, and ZnO as well as their binary and ternary composite thin films on glass substrates via a spin-coating method. The optical, structural, and morphological properties of the films were systematically investigated as a function of the coating layers. X-ray diffraction (XRD) analysis confirmed the formation of cubic CoO, rhombohedral Fe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>, and hexagonal ZnO phases. UV–Vis spectroscopy revealed that ZnO films retained up to 98% optical transparency. Tauc plot analysis yielded optical band-gap values in the range of 1.9–2.2 ± 0.01 eV for CoO, 2.5–2.8 ± 0.01 eV for Fe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>, and 2.7–3.2 ± 0.01 eV for ZnO. Binary and ternary composite films exhibited tunable band-gap values intermediate between those of the constituent oxides. These findings demonstrate that thickness and compositional control provide an effective route for tailoring the optical and morphological properties of metal oxide thin films for transparent and optoelectronic coating applications.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418265"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Nickel-doped calcium nano ferrites suitable for magneto-electronic applications 适用于磁电子应用的掺镍钙纳米铁氧体

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2025-12-31 DOI: 10.1016/j.physb.2025.418207

B.C. Manjunatha , Sheik Abdul Sattar , J. Kavana , P. Shankar , H.S. Yoganand , G.V. Ashok Reddy , K. Naveen Kumar , N. Pushpa

{"title":"Nickel-doped calcium nano ferrites suitable for magneto-electronic applications","authors":"B.C. Manjunatha , Sheik Abdul Sattar , J. Kavana , P. Shankar , H.S. Yoganand , G.V. Ashok Reddy , K. Naveen Kumar , N. Pushpa","doi":"10.1016/j.physb.2025.418207","DOIUrl":"10.1016/j.physb.2025.418207","url":null,"abstract":"<div><div>Nickel-doped calcium nano ferrites (Ni<sub>x</sub>Ca<sub>1–x</sub>Fe<sub>2</sub>O<sub>4</sub>; x = 0.00–0.25) were synthesized using solution combustion to investigate the influence of Ni<sup>2+</sup> substitution on their structural, electrical, and magnetic properties. X-ray diffraction confirmed single-phase orthorhombic NCAF with crystallite sizes of 34–39 nm, decreasing with increasing Ni content due to ionic size effects. FTIR analysis verified metal–oxygen vibrations at tetrahedral and octahedral sites, with minor band shifts induced by Ni incorporation. EDX confirmed the elemental composition within the required ratios. SEM and TEM images showed homogeneous, porous nanocrystalline structures with minimal phase separation and preferential orientation, especially for Ni<sub>0.25</sub>Ca<sub>0.75</sub>Fe<sub>2</sub>O<sub>4</sub>. Dielectric and AC conductivity studies indicated Maxwell–Wagner interfacial polarization and hopping conduction via Fe<sup>2+</sup>/Fe<sup>3+</sup> ions, consistent with Jonscher's power law. Impedance and modulus spectroscopy revealed non-Debye relaxation dominated by grain boundary effects, with relaxation times ranging from 1.59 μs to 79.60 μs. AC conductivity followed Verwey's hopping mechanism, and frequency-dependent behaviour suggested enhanced domain wall motion. Magnetic hysteresis measurements (VSM) showed that Ni<sup>2+</sup> substitution enhances magnetic performance, with maximum saturation magnetization (Ms ≈ 19.33 emu/g), coercivity (Hc ≈ 167.25 Oe), and remanence (Mr ≈ 4.71 emu/g) observed at x = 0.15. Overall, increasing Ni content improves Ms, Mr, and ηB. The optimized NCAF compositions exhibit promising electrical and magnetic characteristics suitable for advanced magneto-electronic applications.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418207"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 of NNN interaction on soliton stability in a 2D ferromagnetic spin system—An analytical approach NNN相互作用对二维铁磁自旋系统孤子稳定性的影响——一种分析方法

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-02 DOI: 10.1016/j.physb.2025.418232

L. Malkija , M.M. Latha , M.S. Mani Rajan

引用次数: 0

Noise-tolerant tripartite entanglement and quantum coherence via saturation effects 通过饱和效应的耐噪声三部纠缠和量子相干性

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-03 DOI: 10.1016/j.physb.2025.418230

P. Djorwé , S. Abdel-Khalek , J.-X. Peng , A.-H. Abdel-Aty , K.S. Nisar

{"title":"Noise-tolerant tripartite entanglement and quantum coherence via saturation effects","authors":"P. Djorwé , S. Abdel-Khalek , J.-X. Peng , A.-H. Abdel-Aty , K.S. Nisar","doi":"10.1016/j.physb.2025.418230","DOIUrl":"10.1016/j.physb.2025.418230","url":null,"abstract":"<div><div>Engineering quantum resources that survive against environmental temperature is of great interest for modern quantum technologies. However, it is a tricky task to synthetize such quantum states. Here, we propose a scheme to generate highly resilient tripartite entanglement and quantum coherence against thermal fluctuations. Our benchmark model consists of a mechanical resonator driven by two electromagnetic fields, which are optically coupled. A modulated photon hopping <span><math><mi>J</mi></math></span> captures the optical coupling, and each optical cavity hosts saturable gain or loss. When the saturable gain/loss are off, we observe a slightly enhancement of both tripartite entanglement and quantum coherence for an appropriate tuning of the phase modulation. When the saturation effects are turned on, we observe a significant enhancement of the tripartite entanglement, up to one order of magnitude, together with a moderate improvement of the quantum coherence. More interestingly, our results show that the threshold thermal phonon number for preserving tripartite entanglement in our proposal has been postponed up to two order of magnitude stronger than when the saturation effects are not accounted. The inclusion of saturable gain/loss in our proposal induces noise-tolerant quantum resources, and may lead to room temperature quantum applications such as quantum information processing, and quantum computational tasks. Our findings are quite general, and suggest saturation nonlinear effects as a tool for engineering thermal-immune quantum correlations.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"726 ","pages":"Article 418230"},"PeriodicalIF":2.8,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Internal and external field effects upon crystal field excitations in REFeO3 (RE = Nd3+, Er3+, Yb3+, Pr3+, and Ho3+) REFeO3 （RE = Nd3+, Er3+, Yb3+, Pr3+, Ho3+）晶体场激发的内外场效应

IF 2.8 3区物理与天体物理

Physica B-condensed Matter Pub Date : 2026-03-15 Epub Date: 2026-01-21 DOI: 10.1016/j.physb.2026.418310

Guochu Deng

引用次数: 0