Solid State Communications最新文献_第7页

Influence of Sb doping on electrical and magnetic properties of SnO2 compounds Sb掺杂对SnO2化合物电磁性能的影响

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-25 DOI: 10.1016/j.ssc.2025.115936

K.K. Singha, S.K. Srivastava

{"title":"Influence of Sb doping on electrical and magnetic properties of SnO2 compounds","authors":"K.K. Singha, S.K. Srivastava","doi":"10.1016/j.ssc.2025.115936","DOIUrl":"10.1016/j.ssc.2025.115936","url":null,"abstract":"<div><div>Extensive research has been conducted to explore the potential applications of oxide materials doped with non<strong>–</strong>magnetic elements for spintronic devices. Our current investigation focuses on the synthesis of Sn<sub>1-x</sub>Sb<sub>x</sub>O<sub>2</sub> (where x ranges from 0 to 0.10 with a step size of 0.02) polycrystalline samples via the traditional solid<strong>–</strong>state reaction method, along with an analysis of their current<strong>–</strong>voltage (I–V) characteristics, high<strong>–</strong>temperature resistivity, and room temperature magnetic hysteresis (B–H) curves. By employing an electrometer, the I<strong>–</strong>V characteristics were recorded and it indicate that the incorporation of Sb doping enhances the conductivity of SnO<sub>2</sub>, resulting in a lower voltage for leakage current saturation. The high temperature electrical resistivity measurements of these compounds revealed that an increase of Sb doping concentrations led to the reduction of the resistivity. The B–H loop study displays ferromagnetic behaviour along-with coercivity value increasing from 540 Oe to 620 Oe upon increasing Sb doping concentrations.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115936"},"PeriodicalIF":2.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725602","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}

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Unveiling structure-activity relationship between carbon crystallography and sodium ion battery anodes 揭示碳晶体学与钠离子电池阳极的构效关系

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-22 DOI: 10.1016/j.ssc.2025.115933

Yanyan Li

引用次数: 0

Vacancy-induced localized modes and impurity band formation in the Haldane model: A quantum dot analogy 霍尔丹模型中的空位诱导局部模式和杂质带形成：量子点类比

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-22 DOI: 10.1016/j.ssc.2025.115923

Hussein Al-Shuwaili , Zahra Noorinejad , Mohsen Amini , Morteza Soltani , Ebrahim Ghanbari-Adivi

{"title":"Vacancy-induced localized modes and impurity band formation in the Haldane model: A quantum dot analogy","authors":"Hussein Al-Shuwaili , Zahra Noorinejad , Mohsen Amini , Morteza Soltani , Ebrahim Ghanbari-Adivi","doi":"10.1016/j.ssc.2025.115923","DOIUrl":"10.1016/j.ssc.2025.115923","url":null,"abstract":"<div><div>In this study, the Haldane model’s edge states are utilized to illustrate that a zero-energy localized state forms around a single vacancy in the model. In order to complete this task, the conventional unit cell associated to the Haldane hexagonal structure is transferred onto a two-leg ladder in momentum space, effectively forming an extended Su–Schrieffer–Heeger (SSH) lattice through a one-dimensional Fourier transform. Through the application of a suitable unitary transformation, the two-leg SSH ladder in momentum space is converted into an equivalent lattice with two distinct on-site states with different momentum that are suitable for the calculations. Ultimately, the desired zero-energy localized mode formed around the vacant-site is represented by a combination of the armchair edge states. Furthermore, the scenario involving two vacant sites is investigated and it is revealed that an effective hopping interaction exists between the localized states formed around the on-site vacancies created along a zigzag chain in the lattice. This structure can be likened to the structure of a quantum dot with two none-degenerate energy levels. Such a hopping interaction is absent for the same vacancies created on the armchair chains. Finally, it is shown that introducing vacancies periodically on the sites of a zigzag row along a finite-width ribbon with the Haldane structure leads to the emergence of an impurity band within the energy gap.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115923"},"PeriodicalIF":2.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685489","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

Valley and spin filtering using multiple Magnetic barriers on a TMDC nanoribbon 在TMDC纳米带上使用多个磁势垒的谷和自旋滤波

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-22 DOI: 10.1016/j.ssc.2025.115919

Seok Jin Yang , Daehan Park , Suejeong You , Heesang Kim , Nammee Kim

{"title":"Valley and spin filtering using multiple Magnetic barriers on a TMDC nanoribbon","authors":"Seok Jin Yang , Daehan Park , Suejeong You , Heesang Kim , Nammee Kim","doi":"10.1016/j.ssc.2025.115919","DOIUrl":"10.1016/j.ssc.2025.115919","url":null,"abstract":"<div><div>A quantum system is investigated as a valley and spin filter using the three-band tight-binding model (TBM) and Landauer–Büttiker formalism. In a transition-metal dichalcogenide (TMDC) zigzag nanoribbon (ZNR) with multiple magnetic barriers, the valley Zeeman effect causes broken valley degeneracy of the <span><math><mi>K</mi></math></span> and <span><math><msup><mrow><mi>K</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span> valleys in each magnetic barrier (MB) region. The energy band shifts upward for the <span><math><msup><mrow><mi>K</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span> valley and downward for the <span><math><mi>K</mi></math></span> valley, or vice versa, depending on the direction of the magnetic field. The influence of an MB on carriers moving from the source to the drain varies depending on the valley involved. Fano resonance in the <span><math><mi>K</mi></math></span> valley and resonance tunneling in the <span><math><msup><mrow><mi>K</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span> valley make the main contributions to valley polarization. With intrinsic spin–orbit coupling (SOC) and the ordinary Zeeman effect, the spin degeneracy of the energy bands in both valleys is broken, leading to spin polarization. Both polarizations can be enhanced by increasing either the number of MBs or the strength of the external magnetic field. With the optimized parameters of this system, it is possible to obtain currents with selective spin and valley by manipulating the incident carrier energy. An experimental implementation of this system could enable control over the carriers’ spin and valley degrees of freedom in upcoming devices.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115919"},"PeriodicalIF":2.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697347","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

Density functional theory studies of Ir2NiSn and Ru2NiSn Heusler alloys Ir2NiSn和Ru2NiSn Heusler合金密度泛函理论研究

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-21 DOI: 10.1016/j.ssc.2025.115932

A. Benidris , S. Amari , K.O. Obodo

{"title":"Density functional theory studies of Ir2NiSn and Ru2NiSn Heusler alloys","authors":"A. Benidris , S. Amari , K.O. Obodo","doi":"10.1016/j.ssc.2025.115932","DOIUrl":"10.1016/j.ssc.2025.115932","url":null,"abstract":"<div><div>Ir<sub>2</sub>NiSn and Ru<sub>2</sub>NiSn alloys were evaluated using density functional theory approach and the FM-L2<sub>1</sub>-type structure was obtained as the stable exothermic ground state configuration for the Ir<sub>2</sub>NiSn and Ru<sub>2</sub>NiSn alloys. The stability of the compounds alloys under investigation is substantiated by formation energy calculations, which consistently indicate negative formation energies. The formations energies of Ir<sub>2</sub>NiSn and Ru<sub>2</sub>NiSn Heusler alloys are −3.66 eV and −5.95 eV respectively. The elastic properties demonstrate that the alloys are stable elastically, ductile and anisotropic. The calculated electronic density of state shows that the alloys have metallic character in both the spin-down and spin-up configurations. The spin configuration for the alloys is attributed to the <em>3d</em> orbitals of Ni and Ir/Ru atoms. The significant <em>d-d</em> orbital hybridization obtained between the transition metal atoms of the Ni and Ir/Ru atoms resulted in the reduction of states at the spin-up level around the valence and conduction bands. Within the GGA-PBE (mBJ-GGA-PBE) approach, the total spin magnetic moments per unit cell of Ir<sub>2</sub>NiSn and Ru<sub>2</sub>NiSn alloys are 1.13 (1.43) and 1.84 (2.22) μ<sub>B</sub>. The mechanical properties, including the bulk modulus, shear modulus, and Young's modulus, were calculated for both alloys, and stability was observed across both alloys. The evaluated Ir<sub>2</sub>NiSn and Ru<sub>2</sub>NiSn alloys have potential application as spintronic materials.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115932"},"PeriodicalIF":2.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705512","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

Unveiling of the theoretical structure and improved magneto-optical properties of Ni0.6Cd0.4FeAl0.5Cr0.5O4 at two annealing temperature for various devices 揭示了Ni0.6Cd0.4FeAl0.5Cr0.5O4在两种退火温度下的理论结构和改进的磁光性能

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-19 DOI: 10.1016/j.ssc.2025.115931

Jabeur Khelifi , Fakher Hcini , Latifa Ben Ammar , M. Nasri , Kamel Khirouni , E.K. Hlil

{"title":"Unveiling of the theoretical structure and improved magneto-optical properties of Ni0.6Cd0.4FeAl0.5Cr0.5O4 at two annealing temperature for various devices","authors":"Jabeur Khelifi , Fakher Hcini , Latifa Ben Ammar , M. Nasri , Kamel Khirouni , E.K. Hlil","doi":"10.1016/j.ssc.2025.115931","DOIUrl":"10.1016/j.ssc.2025.115931","url":null,"abstract":"<div><div>In this research, we have focused to examine en detail how sintering temperature affected the structural and magneto-optical behavior of spinel ferrites Ni<sub>0.6</sub>Cd<sub>0.4</sub>FeAl<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>4</sub> elaborated by sol-gel process and sintered at two distinct temperatures (950 °C and 850 °C). X-ray diffraction were used to do the structural study of our compounds, allowing for the calculation of several parameters such as the lattice parameter and crystallite size. To evaluate the precision of the cation distribution, these findings were compared with theoretical values. Besides, an obvious connection involving the calcination temperature, and the unit cell parameters was discovered. Various magnetic parameters such as the saturation magnetization (<em>M</em><sub>S</sub>), coercivity (<em>H</em><sub><em>C</em></sub>), the anisotropy constant (<em>K)</em> and squareness ratio (<em>SQ)</em> was determined from hysteresis cycle. Indeed, the <em>dM</em>/<em>dH</em> versus applied field (switching field distribution curves) was plotted and the <em>dM</em>/<em>dH</em> data present a sharp increase in the small field. The fascinating optoelectronic uses of our ferrites materials were emphasized by further examination of the refractive index, penetration depth, extinction coefficients, optical conductivity, and optical dielectric constants. The obtained bandgap values make our samples promising candidates for visible light absorption. This suggests that Al and Cr substituting provide a chance to increase the Nd-Cd system's spectrum of solar absorption.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115931"},"PeriodicalIF":2.1,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685487","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

A comprehensive theoretical analysis of Cs2KGaX6 (X = Cl, Br, I): For green energy solutions 绿色能源溶液Cs2KGaX6 （X = Cl, Br， I）的综合理论分析

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-19 DOI: 10.1016/j.ssc.2025.115929

Nirdesh Kumar Singh , Anuj Kumar , Sarvendra Kumar , Vivek Kumar Nautiyal , Rajesh Kumar , Aman Kumar , Nazia Iram

{"title":"A comprehensive theoretical analysis of Cs2KGaX6 (X = Cl, Br, I): For green energy solutions","authors":"Nirdesh Kumar Singh , Anuj Kumar , Sarvendra Kumar , Vivek Kumar Nautiyal , Rajesh Kumar , Aman Kumar , Nazia Iram","doi":"10.1016/j.ssc.2025.115929","DOIUrl":"10.1016/j.ssc.2025.115929","url":null,"abstract":"<div><div>Researchers have identified double perovskites as promising materials for thermoelectric and optoelectronic technologies, owing to their versatility in energy-related applications. This research is mostly about the compounds Cs<sub>2</sub>KGaX<sub>6</sub> [X = Cl, Br, I]. It uses advanced computer programs called Wien2K and BoltzTraP to investigate their structure, electronic, optical, and thermoelectric properties. Structural analysis confirms the stability of these compounds through energy versus volume curve evaluations. The calculated band gaps for Cs<sub>2</sub>KGaCl<sub>6</sub>, Cs<sub>2</sub>KGaBr<sub>6</sub>, and Cs<sub>2</sub>KGaI<sub>6</sub> are 4.938 eV, 3.449 eV, and 2.924 eV, respectively. These values indicate that the materials can absorb light in both the visible and ultraviolet regions. The study of optical properties shows that Cs<sub>2</sub>KGaX<sub>6</sub> [X = Cl, Br, I] has strong light absorption, high electrical conductivity, interesting dielectric constants, optical reflectivity, and interesting refractive indices. These properties make it a great choice for photovoltaic uses. We meticulously evaluated the transport properties, including the Seebeck coefficient, as well as the thermal and electrical conductivities. The results highlight the strong potential of these materials for thermoelectric generators. The Cs<sub>2</sub>KGaX<sub>6</sub> [X = Cl, Br, I] compounds demonstrate exceptional properties, solidifying their viability as sustainable energy materials, particularly for photovoltaic and thermoelectric applications.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115929"},"PeriodicalIF":2.1,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705511","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

Tunable analog and nearly digital responses in hole-doped LiNbO2 memristors 孔掺杂LiNbO2忆阻器的可调谐模拟和近数字响应

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-17 DOI: 10.1016/j.ssc.2025.115911

L. Craco , S.S. Carara , A.S. de Arruda , P.H.Z. de Arruda , S. Leoni

引用次数: 0

Study of electrical properties of the semiconductor N-benzyl-N'-(5-methyl-1H-pyrazol-3-yl) propanimidamide 半导体n -苄基- n′-（5-甲基- 1h -吡唑-3-基）原虫酰胺的电学性质研究

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-17 DOI: 10.1016/j.ssc.2025.115930

Sonia Louiz , Houcine Labiadh , Raoudha Abderrahim , Riadh Marzouki , Abdelhak Othmani

{"title":"Study of electrical properties of the semiconductor N-benzyl-N'-(5-methyl-1H-pyrazol-3-yl) propanimidamide","authors":"Sonia Louiz , Houcine Labiadh , Raoudha Abderrahim , Riadh Marzouki , Abdelhak Othmani","doi":"10.1016/j.ssc.2025.115930","DOIUrl":"10.1016/j.ssc.2025.115930","url":null,"abstract":"<div><div>This article focuses mainly on the recent advances in the study of the interesting electronic powers of the N-benzyl-N'-(5-methyl-1H-pyrazol-3-yl) propanimidamide. The selected amidine has been previously synthesized, and characterized in a previous publication. We present in this research to study the electrical properties of the crystal. In this context, we studied the electrical properties (impedance, modulus, and DC conductivity) of the material as a function of both frequency and temperature factors. The obtained results showed that the synthesized amidine is a good short-range proton semiconductor material. The appearance of the reported semiconductor behavior is linked to the activation of the Small Polaron Hopping conduction process via an energy of Ea = 0.788 eV. In this case, we can recognize that the transport properties in the studied system are thermally activated. Impedance measurements approve the important contribution of the conductive grains and the resistive grain boundary zones on the electrical transport properties of the material. Then, the M″ and Z″ spectra evidence the existence of electrical relaxation phenomena in the studied sample. In the same context, the modulus representation showed the absence of the electrode contribution to the transport properties at low frequencies. The deduced activation energies from the DC conductivity and the imaginary parts of the impedance and modulus representations are deffirent that confirms that the transport and the relaxation phenomena are related to dissimilar origins.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115930"},"PeriodicalIF":2.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685486","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

Borophene sheets as potential candidates for the detection and removal of harmful gas molecules 硼苯片作为检测和去除有害气体分子的潜在候选者

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-03-14 DOI: 10.1016/j.ssc.2025.115905

Isabel M. Arias-Camacho, Nevill Gonzalez Szwacki

{"title":"Borophene sheets as potential candidates for the detection and removal of harmful gas molecules","authors":"Isabel M. Arias-Camacho, Nevill Gonzalez Szwacki","doi":"10.1016/j.ssc.2025.115905","DOIUrl":"10.1016/j.ssc.2025.115905","url":null,"abstract":"<div><div>The synthesis of graphene marked the beginning of a new era for two-dimensional materials, celebrated for their exceptional properties and wide-ranging applications. Among the emerging mono-elemental Xenes family, borophene – composed entirely of boron atoms – stands out due to its exotic bonding states, which give rise to diverse polymorphs and versatile applications. This study focuses on three distinct borophene structures: the buckled hexagonal, the <span><math><mi>α</mi></math></span>-sheet, and the honeycomb-like forms, each characterized by unique boron densities. Their potential for detecting and capturing five harmful gas molecules (CO, CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>, NO, NO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>, and NH<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>) is thoroughly assessed. The novelty of this work lies in analyzing the interactions between these gases and the well-known <span><math><mi>α</mi></math></span>-sheet and honeycomb-like borophene, while using the buckled form as a reference. The results indicate that borophene holds significant promise for applications in hazardous gas sensing and removal.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"401 ","pages":"Article 115905"},"PeriodicalIF":2.1,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685488","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