The European Physical Journal B最新文献_第10页

Linear response of tilted anisotropic two-dimensional Dirac cones 倾斜各向异性二维狄拉克锥的线性响应

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-11 DOI: 10.1140/epjb/s10051-025-00945-y

Ipsita Mandal

引用次数: 0

First-principles study of CsVTe half-Heusler alloy aimed at spintronic and thermoelectric uses 针对自旋电子和热电用途的CsVTe半heusler合金的第一性原理研究

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-10 DOI: 10.1140/epjb/s10051-025-00960-z

A. Ben Zoubair, A. Samih, A. Nfissi, M. Es-Semyhy, R. El Fdil, E. Salmani, Z. Fadil, Chaitany Jayprakash Raorane, Mohammad Abul Farah, Mohammad Ajmal Ali

{"title":"First-principles study of CsVTe half-Heusler alloy aimed at spintronic and thermoelectric uses","authors":"A. Ben Zoubair, A. Samih, A. Nfissi, M. Es-Semyhy, R. El Fdil, E. Salmani, Z. Fadil, Chaitany Jayprakash Raorane, Mohammad Abul Farah, Mohammad Ajmal Ali","doi":"10.1140/epjb/s10051-025-00960-z","DOIUrl":"10.1140/epjb/s10051-025-00960-z","url":null,"abstract":"<div><p>This study investigates the structural, elastic, mechanical, electrical, magnetic, and thermoelectric properties of the half-Heusler CsVTe alloy using density functional theory (DFT). The GGA-PBE and GGA + U approximations are employed to accurately assess these characteristics. The results show that CsVTe is most stable in the ferromagnetic (FM) configuration, compared to the nonmagnetic (NM) and antiferromagnetic (AFM) phases. Density of states analysis reveals that CsVTe exhibits ferromagnetic half-metallic behavior in both GGA-PBE and GGA + U approximations, highlighting its potential for spintronic applications. A detailed investigation of the alloy’s elastic and mechanical properties confirms its mechanical stability. Thermodynamic stability is further validated through the use of a ternary convex hull diagram. However, the presence of negative frequencies in the phonon dispersion curve suggests that HH-CsVTe may exist in a metastable phase. Additionally, the thermoelectric properties of HH-CsVTe were evaluated using both GGA-PBE and GGA + U methods. The results show a high ZT value close to 1 for the spin-down channel, indicating CsVTe’s potential for thermoelectric applications.</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 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164400","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

Correction: Antibacterial and photocatalytic activity of Tb-doped ZnO nanoparticles: effect of doping concentration 修正：tb掺杂ZnO纳米颗粒的抗菌和光催化活性：掺杂浓度的影响

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-06 DOI: 10.1140/epjb/s10051-025-00961-y

A. Jasmine, P. Baskaran, L. Bruno Chandrasekar, M. Karunakaran, P. Krishnaveni, T. Balakrishnan, Lalitha Gnanasekaran, J. Thirumalai, P. Shunmuga Sundaram, Salim Manoharadas, Sonaimuthu Mohandoss, Subramanian Palanisamy

引用次数: 0

Unifying principle for Hall coefficient in systems near magnetic instability 接近磁不稳定系统中霍尔系数的统一原理

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-05 DOI: 10.1140/epjb/s10051-025-00963-w

Jalaja Pandya, Navinder Singh

{"title":"Unifying principle for Hall coefficient in systems near magnetic instability","authors":"Jalaja Pandya, Navinder Singh","doi":"10.1140/epjb/s10051-025-00963-w","DOIUrl":"10.1140/epjb/s10051-025-00963-w","url":null,"abstract":"<p>Typically, Hall coefficient of materials near magnetic instabilities exhibits pronounced temperature dependence. To explore the reasons involved, the temperature dependence of Hall coefficient in <span>({Cr}_{1-x}{V}_x)</span>, <span>({V}_{2-y}{O}_3)</span> and some high-<span>(T_c)</span> superconducting cuprates is studied. We argue that it can be rationalized using the following unifying principle: <i>When a system is near a magnetic instability and temperature is reduced towards the instability, there is a progressive “loss” of carriers (progressive “tying down” of electrons) as they participate in long-lived and long-ranged magnetic correlations.</i> In other words, magnetic correlations grow in space and are longer-lived as temperature is reduced towards the magnetic instability. This is the mechanism behind reduced carrier density with reducing temperature and leads to an enhancement of the Hall coefficient. This unifying principle is implemented and quantitative analysis is done using the Gor’kov Teitel’baum Thermal Activation (GTTA) model. Our findings show that the Hall angle data can be understood using one relaxation time (in contrast to the “two-relaxation” times idea of Anderson) by taking into consideration of temperature dependence of carrier density. This unifying principle is shown to be working in above studied systems, but authors believe that it is of much more general validity.</p>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162584","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

Magnesium-based solid electrolyte with polysaccharides pectin complexed electrodes for electrochemical applications 镁基固体电解质与多糖果胶复合电极的电化学应用

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-04 DOI: 10.1140/epjb/s10051-025-00965-8

S. Jeya Lakshmi, D. Catherine Denisha, D. Sher Meena, S. Anna Venus, Manikandan Ayyar, M. Santhamoorthy, S. Santhoshkumar

{"title":"Magnesium-based solid electrolyte with polysaccharides pectin complexed electrodes for electrochemical applications","authors":"S. Jeya Lakshmi, D. Catherine Denisha, D. Sher Meena, S. Anna Venus, Manikandan Ayyar, M. Santhamoorthy, S. Santhoshkumar","doi":"10.1140/epjb/s10051-025-00965-8","DOIUrl":"10.1140/epjb/s10051-025-00965-8","url":null,"abstract":"<div><p>Biopolymer electrolytes are growing as a popular alternative to synthetic polymer electrolytes in electrochemical systems due to their carbon neutrality, sustainability, and ease-of-use biodegradability. Recent research on applying an electrochemical system concentrates on polysaccharides like pectin, cellulose, chitosan, agar–agar, xanthum gum, and starch as electrolytes. This project focuses on the synthesis and the characterization of biopolymer electrolyte pectin with magnesium chloride (MgCl<sub>2</sub>) salt, with two different concentrations of pectin (1g):MgCl<sub>2</sub> (0.5g) and pectin (1g):MgCl<sub>2</sub> (0.7g). Biopolymer electrolytes are produced through solution casting method and studied using X-ray diffraction (XRD), Fourier-transform infrared (FTIR), differential scanning calorimetry (DSC), SEM-EDAX, AC impedance spectroscopy, and linear sweep voltammetry. Integration of salt strengthens the non-crystalline nature of the membranes as confirmed by XRD. FTIR analysis has been employed to verify interlinkage and coordination bonding of host biopolymer and Mg salt. Thermal analysis is used to affirm the glass transition temperature of obtained electrolytes. In AC impedance investigation, the ionic conductivity value for PP (1 g) with (0.7 g) MgCl<sub>2</sub> is found to be 1.92 × 10<sup>–3</sup> S/cm. Dielectric permittivity (<i>ε</i>*) is employed to study the dielectric behavior of electrolytes. As the MgCl<sub>2</sub> content rises, <i>ε</i>′ and <i>ε</i>″ increase as well and prove that they are ionic conductors. Electrochemical and cyclic stability of prepared electrolytes is analyzed by LSV studies. A basic magnesium battery has been fabricated using PMg2 biopolymer electrolyte and the functioning of the battery has been examined.</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 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161687","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

Influence of laser irradiation on transport of charge carriers in p-n-junctions 激光辐照对p-n结中载流子输运的影响

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-03 DOI: 10.1140/epjb/s10051-025-00962-x

E. L. Pankratov

引用次数: 0

A new look at Ernst Ising’s thesis 重新审视恩斯特·伊辛的理论

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-02 DOI: 10.1140/epjb/s10051-025-00954-x

Reinhard Folk

{"title":"A new look at Ernst Ising’s thesis","authors":"Reinhard Folk","doi":"10.1140/epjb/s10051-025-00954-x","DOIUrl":"10.1140/epjb/s10051-025-00954-x","url":null,"abstract":"<p>The famous paper (Ising in Z Phys 31: 253, A translation to English is by Jane Ising, Tom Cummings, Ulrich Harsch is found Bibliotheca Augustina 2001/02 https://www.hs-augsburg.de/~harsch/anglica/Chronology/20thC/Ising/isi_fm00.html, 1928) contains only a greatly reduced version of the material presented in his thesis. Looking at it therefore provides new insights into the Ising model in terms of its later implications. The method of calculating the partition function from the configuration of the system succeeds by finding a polynomial whose largest root defines the result in the thermodynamic limit and which coincides with the characteristic polynomial of the transfer matrix. This matrix works with the states of the elementary elements of the model and was found later in 1941 by Kramers and Wannier. Ising used his method for several one-dimensional models—variants of the Ising chain: a chain with three instead of two states (a forerunner of the Potts model formulated 1952), the Ising ladder given by two interacting chains and the Ising chain with next nearest-neighbor interaction published by Montroll in 1941. The largest root could not be found in all cases and approximations had to be made. Although no phase transition at finite temperature was found for the Ising chain, it turned out in the following decades that there is a critical point at <span>(T=0)</span>. Thus, the simple Ising chain can be used to study all properties approaching a transition point in this exactly solvable model. The historical introduction to the problem, given by Ising in his dissertation, goes back to Richard Kirwan (1733–1812), who was the first to associate ferromagnetism with the ordering of interacting magnetic elements similar to crystallization.</p>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjb/s10051-025-00954-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Thermodynamics of the Fermi gas in a cubic cavity of an arbitrary volume 费米气体在任意体积的立方腔中的热力学

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-02 DOI: 10.1140/epjb/s10051-025-00967-6

Yu. M. Poluektov, A. A. Soroka

引用次数: 0

Ising-spin networks with competing geometric interactions: a new perspective for investigating emergent phenomena in complex materials 具有竞争几何相互作用的伊辛自旋网络：研究复杂材料中涌现现象的新视角

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-02 DOI: 10.1140/epjb/s10051-025-00959-6

Bosiljka Tadić, Raša Pirc

{"title":"Ising-spin networks with competing geometric interactions: a new perspective for investigating emergent phenomena in complex materials","authors":"Bosiljka Tadić, Raša Pirc","doi":"10.1140/epjb/s10051-025-00959-6","DOIUrl":"10.1140/epjb/s10051-025-00959-6","url":null,"abstract":"<p>The application of mathematical graphs and networks in physics is necessary for adequately representing synthesized complex structures and self-assembled nanomaterials of various emergent architectures. Complex networks endowed by Ising spins at nodes and interactions of different signs and orders supported by the network’s geometry open new horizons in researching such complex materials, particularly by enabling graph theoretic approaches to investigate the interplay of structural complexity and emergent dynamical features. Here, we briefly survey emerging physical phenomena that can be appropriately described within this approach, precisely the geometric frustration, geometry-embedded higher-order interactions, and the altered role of disorder. As a showcase, we study the spin reversal dynamics on the hysteresis loop in Ising spin networks consisting of triangles assembled into three different architectures and triangle-embedded interactions of a random sign. We show how geometric frustration, in conjunction with the topology of an assembly, affects the hysteresis loop shape and spin-activity avalanches during the field-driven magnetisation reversal.</p>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjb/s10051-025-00959-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Interfacial properties in edge-contact Borophene/BAs from first-principle study 基于第一性原理研究的边接触硼罗芬/钡的界面性质

IF 1.7 4区物理与天体物理

The European Physical Journal B Pub Date : 2025-06-01 DOI: 10.1140/epjb/s10051-025-00964-9

Xiao Ouyang, Bin Liao, Baoan Bian

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