The European Physical Journal B最新文献_第2页

Optical characterization of defect chalcopyrite ZnIn2Te4 thin films for opto-electronic device implementations

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-14 DOI: 10.1140/epjb/s10051-025-00940-3

E. G. El-Metwally, A. M. Shakra, Dalia M. Abdel-Basset

{"title":"Optical characterization of defect chalcopyrite ZnIn2Te4 thin films for opto-electronic device implementations","authors":"E. G. El-Metwally, A. M. Shakra, Dalia M. Abdel-Basset","doi":"10.1140/epjb/s10051-025-00940-3","DOIUrl":"10.1140/epjb/s10051-025-00940-3","url":null,"abstract":"<div><p>Defect chalcopyrite compounds have emerged as promising materials for optoelectronic applications. In this study, we investigate the linear and nonlinear optical properties of ZnIn<sub>2</sub>Te<sub>4</sub> thin films deposited with varying thicknesses (113–385 nm). The transmittance and reflectance measurements were performed across a wide spectral range (400–2500 nm), revealing two distinct optical band gaps of 0.932 eV (indirect) and 1.36 eV (direct). The refractive index <span>(n)</span> and extinction coefficient <span>(k)</span> exhibited normal dispersion behavior. While the skin depth decreased and optical conductivity increased with photon energy. Using the Wemple–DiDomenico single oscillator model, we extracted key optical parameters such as the oscillator energy <span>({E}_{o})</span>, dispersion energy <span>({E}_{d})</span>, infinite dielectric constant <span>({varepsilon }_{infty })</span>, and oscillator strength <span>({S}_{o})</span>. Energy loss functions (<span>(text{VELF})</span> and <span>(text{SELF})</span>) also increased with photon energy. Nonlinear optical properties, including the linear susceptibility <span>({chi }^{(1)})</span>, third-order susceptibility <span>({chi }^{(3)})</span>, and nonlinear refractive index <span>({n}_{2})</span>, were evaluated, yielding values of 0.944, 1.35 × 10⁻<sup>1</sup>⁰ <span>(esu)</span>, and 1.42 × 10⁻⁹ <span>(esu)</span>, respectively. These results demonstrate the potential of ZnIn<sub>2</sub>Te<sub>4</sub> for use in optical devices such as filters, photodetectors, and nonlinear switches.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944279","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

Plasmon-sound hybridization in ionic crystals 离子晶体中的等离子体声杂化

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-13 DOI: 10.1140/epjb/s10051-025-00941-2

Jakob Rappolt, Andreas Rückriegel, Peter Kopietz

引用次数: 0

Novel vortex phases in superconductivity investigated by scanning Hall probe microscopy technique 扫描霍尔探针显微技术研究超导中的新型涡旋相

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-10 DOI: 10.1140/epjb/s10051-025-00935-0

Hussein Ali Mohammed, Nada Mansoor Hassan, Sufian Mohammed Nayif

{"title":"Novel vortex phases in superconductivity investigated by scanning Hall probe microscopy technique","authors":"Hussein Ali Mohammed, Nada Mansoor Hassan, Sufian Mohammed Nayif","doi":"10.1140/epjb/s10051-025-00935-0","DOIUrl":"10.1140/epjb/s10051-025-00935-0","url":null,"abstract":"<div><p>This study investigated the characteristics of co-doped Sr-122 iron-based superconductors and single-crystal samples were examined using high-resolution scanning Hall probe microscopy (SHPM). In this study, we used a particular method to evaluate the formation of isolated vortices by looking at how temperature changes impact the fields' penetration depth, which we represented as <i>λ</i>(<i>T</i>). We calculated the temperature's superfluid density using this dataset. When contrasting it with the two-band superconductor predictions of the α model, the parameters generated by the fitting procedure could offer important information on the electrons' symmetry of the order parameter. In crystals made of iron, hole pockets play a major role in determining the superfluid density. Low pinning forces of field, which are many orders smaller in magnitude than values reported by other methods for identical superconducting crystals, have been estimated using vortex displacements from a perfect triangular lattice.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932295","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

Interactive diversity promotes cooperation in multi-games 互动多样性促进了多人游戏中的合作

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-10 DOI: 10.1140/epjb/s10051-025-00869-7

Ben Wang, Linjiang Yang, Xinguo He, Yichen Yang, Haochun Yang

{"title":"Interactive diversity promotes cooperation in multi-games","authors":"Ben Wang, Linjiang Yang, Xinguo He, Yichen Yang, Haochun Yang","doi":"10.1140/epjb/s10051-025-00869-7","DOIUrl":"10.1140/epjb/s10051-025-00869-7","url":null,"abstract":"<p>In game theory, it is an important topic to study the emergence and maintenance of group cooperative behavior based on evolutionary game and complex network. However, in-depth analysis of cooperative behavior persistence becomes a significant challenge due to the betrayal induced by the temptation of high payoff and the difficulty of cooperation under high social dilemmas. Recent studies show that mixed strategy games and multi-game mechanics can greatly improve the ability of individuals with interactive diversity to resist temptation. In our study, we employ a model that integrates the Prisoner’s Dilemma (PD) and Snowdrift (SD) games, allowing players to engage in different types of games with their neighbors, thereby creating a more stable cooperative environment. The concept of the memory step enables players to maintain their strategies over a certain number of moves. When combined with the side-game mechanism, this significantly bolsters resistance to betrayal and encourages cooperative behavior. Numerical simulations were conducted to uncover the impact of the memory step and the sucker’s payoff on the evolution of cooperation, and to identify the optimal threshold for the memory step. This threshold balances the trade-off between cooperation and defection. The findings suggest that interactive diversity, facilitated by strategic memory steps and side-games, can effectively alleviate social dilemmas.</p>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932296","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

Computational and spectroscopic analysis of croconic acid: geometry optimization, surface interaction, energy levels, and optical features 西红花酸的计算和光谱分析：几何优化、表面相互作用、能级和光学特征

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-10 DOI: 10.1140/epjb/s10051-025-00939-w

Mamataj Khatun, Ekramul Kabir

{"title":"Computational and spectroscopic analysis of croconic acid: geometry optimization, surface interaction, energy levels, and optical features","authors":"Mamataj Khatun, Ekramul Kabir","doi":"10.1140/epjb/s10051-025-00939-w","DOIUrl":"10.1140/epjb/s10051-025-00939-w","url":null,"abstract":"<div><p>This study provides a comprehensive investigation into croconic acid using computational and spectroscopic techniques. Structural optimization was performed to determine the most stable geometry, facilitating detailed insights into its molecular framework. Hirshfeld surface analysis revealed intermolecular interactions, emphasizing the dominance of hydrogen bonding and van der Waals forces in the crystal structure. The electronic properties were explored through HOMO–LUMO analysis, highlighting a small energy gap that suggests potential applications in optoelectronic devices. Furthermore, infrared spectroscopy was employed to analyze vibrational modes, validating theoretical predictions with experimental results. Optical properties, including absorption spectra, were assessed to understand the material’s electronic transitions. Collectively, the findings contribute to a deeper understanding of croconic acid’s structural, electronic, and spectroscopic characteristics, enhancing its potential for future applications in materials science.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930150","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

Unidirectional charge correlations in hole-doped cuprates 空穴掺杂铜酸盐中的单向电荷相关性

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-09 DOI: 10.1140/epjb/s10051-025-00931-4

Dheeraj Kumar Singh, Yunkyu Bang

引用次数: 0

Reentrant behavior and dielectric properties in alternating spin spheres: a Monte Carlo study 交替自旋球的重入行为和介电性质：蒙特卡罗研究

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-09 DOI: 10.1140/epjb/s10051-025-00944-z

L. Ouzaroual, Z. Fadil, R. El Fdil, E. Salmani, Chaitany Jayprakash Raorane, Khaled H. Mahmoud, Abdulrahman A. Alsayyari

引用次数: 0

The space writhes and signatures of polymer knots 空间扭曲和聚合物结的特征

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-08 DOI: 10.1140/epjb/s10051-025-00942-1

Finn Thompson, Maria Maalouf, Alexander R. Klotz

引用次数: 0

Design and optimization of a hybrid graphene-metallic metasurfaces terahertz biosensor for high-precision detection of reproductive hormones, integrating locally weighted linear regression analysis and 2-bit encoding capabilities 结合局部加权线性回归分析和2位编码能力，用于高精度生殖激素检测的石墨烯-金属超表面混合太赫兹生物传感器的设计与优化

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-08 DOI: 10.1140/epjb/s10051-025-00933-2

Jacob Wekalao, Hussein A. Elsayed, Ahmed M. El-Sherbeeny, Mostafa R. Abukhadra, Ahmed Mehaney

{"title":"Design and optimization of a hybrid graphene-metallic metasurfaces terahertz biosensor for high-precision detection of reproductive hormones, integrating locally weighted linear regression analysis and 2-bit encoding capabilities","authors":"Jacob Wekalao, Hussein A. Elsayed, Ahmed M. El-Sherbeeny, Mostafa R. Abukhadra, Ahmed Mehaney","doi":"10.1140/epjb/s10051-025-00933-2","DOIUrl":"10.1140/epjb/s10051-025-00933-2","url":null,"abstract":"<div><p>The detection and monitoring of reproductive hormones play a crucial role in understanding reproductive health, fertility treatments, and endocrine disorders. Traditional hormone detection methods, such as immunoassays and chromatography, while accurate, often require complex sample preparation, specialized laboratory settings, and considerable time for analysis. This has created a pressing need for rapid, sensitive, and cost-effective detection methods that can be implemented in point-of-care settings. Meanwhile, we have introduced in the present communication a novel terahertz (THz) biosensor design that integrates graphene, copper, and silver in engineered metasurfaces resonators for high-precision reproductive hormone detection. The proposed structure leverages graphene's tunable properties alongside plasmonic enhancement from copper and silver, achieving a remarkable sensitivity of 1000 GHz/RIU in the 1.335–1.343 refractive index range. Moreover, the sensor demonstrates excellent performance metrics, including a quality factor of 11.315 and a figure of merit of 5.618 RIU<sup>–1</sup>. In addition, the sensor's capabilities were validated through electromagnetic simulations and locally weighted linear regression analysis, achieving a perfect prediction accuracy with an R<sup>2</sup> value of 100% across multiple parametric variations. Furthermore, the design functions as a 2-bit encoder, producing distinct transmittance patterns for different binary states. Finally, the sensor's remarkable performance, combined with its practical fabrication feasibility using conventional techniques, presents a promising solution for point-of-care reproductive hormone detection and monitoring.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919126","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

Interpreting surface adsorption with band data: a machine learning perspective on quantum orientation 用波段数据解释表面吸附：量子取向的机器学习视角

IF 1.6 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-05-08 DOI: 10.1140/epjb/s10051-025-00936-z

Jiahao Wei, Xinxu Zhang, Guo Li, Jiamin Liu, Changlong Liu, Yonghui Li

{"title":"Interpreting surface adsorption with band data: a machine learning perspective on quantum orientation","authors":"Jiahao Wei, Xinxu Zhang, Guo Li, Jiamin Liu, Changlong Liu, Yonghui Li","doi":"10.1140/epjb/s10051-025-00936-z","DOIUrl":"10.1140/epjb/s10051-025-00936-z","url":null,"abstract":"<p>A band-based approach with quantum mechanical data is successful in bridging quantum data and practical applications. Quantum mechanical intuitions of a band-based model (e.g. the <i>d</i>-band model) can be related to the adsorption states being reshaped by a band in an atom-like pattern. However, the incompleteness hinder the extension of the band-based model for broader and more accurate applications. Herein, in this work, a systematical extension of the band-based model is introduced with a complete decomposition of bonding/anti-bonding/non-bonding in a consistent and parameter-free way. The Bonding Decomposition with limited aid from machine learning algorithms, possesses enough explainability power which allow people to evaluate hybridization, repulsive orthogonalization and nonbonding occupations. With the new approach, the adsorption energy can be related to the band-center-like single indicator, or be better related to up to 5 better indicators including a high occupation center, a high occupation width, a nonbonding component in high occupation, a bonding indicator and an anti-bonding indicator in low occupation. As the 5 indicators cover the essence of the band center evaluations, the adsorption energies can simply be modeled with a linear model which split “cans” from “cannots” out of the pure Bonding Decomposition. The Bonding Decomposition is applied to metal <i>d</i>-band and perovskite <i>p</i>-band data. After the normally distributed residuals are considered as “random errors”, the Bonding Decomposition may be good for medium adhesion strength. The algorithm displaces why the band center for metal <i>d</i>-band data is already an effective approach and why perovskite <i>p</i>-band data must be handled with the nonbonding contributions considered.</p>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925616","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