Solid State Communications最新文献_第10页

Surface morphology of 3C–SiC layers grown on 4H–SiC substrates using TCS as silicon precursor 以三氯氢硅为硅前驱体在 4H-SiC 基底上生长的 3C-SiC 层的表面形貌

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-08-03 DOI: 10.1016/j.ssc.2024.115650

Xun Li, Maimai Mu

引用次数: 0

Antimony composition impact on band alignment in InAs/GaAsSb quantum dots 锑成分对 InAs/GaAsSb 量子点带排列的影响

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-08-02 DOI: 10.1016/j.ssc.2024.115648

I. Saïdi , K. Boujdaria , C. Testelin

{"title":"Antimony composition impact on band alignment in InAs/GaAsSb quantum dots","authors":"I. Saïdi , K. Boujdaria , C. Testelin","doi":"10.1016/j.ssc.2024.115648","DOIUrl":"10.1016/j.ssc.2024.115648","url":null,"abstract":"<div>We present a theoretical study of the electronic and excitonic states in InAs/GaAsSb quantum dots. We first center our study on the dependence of the antimony composition in the positioning of conduction- and valence-band alignments in InAs/GaAsSb/GaAs heterostructures. We predict a transition from type I to type II quantum dots at critical composition <math><mrow><msub><mrow><mi>x</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>=</mo><mn>0</mn><mo>.</mo><mn>128</mn></mrow></math>, which describes well the experimental trend. We discuss the influence of the quantum dot size and antimony composition on the spatial distributions of carriers and the exciton binding energy. We find that the ground state exciton binding energy is always significantly smaller <math><mfenced><mrow><mo>≃</mo><mn>4</mn><mstyle><mi>m</mi><mi>e</mi><mi>V</mi></mstyle></mrow></mfenced></math> for type II than for corresponding type I quantum dots <math><mfenced><mrow><mo>≃</mo><mn>14</mn><mstyle><mi>m</mi><mi>e</mi><mi>V</mi></mstyle></mrow></mfenced></math>. Finally, we also predict the excitonic radiative lifetime and find 1 <math><mstyle><mi>n</mi><mi>s</mi></mstyle></math> for type I and 10 <math><mstyle><mi>n</mi><mi>s</mi></mstyle></math> for type II quantum dots, in agreement with the existing experimental literature.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"392 ","pages":"Article 115648"},"PeriodicalIF":2.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963980","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

Study of spin-phonon interaction in multiferroic La0.9Bi0.1CrO3 by Raman spectroscopy 利用拉曼光谱研究多铁性 La0.9Bi0.1CrO3 中的自旋-声子相互作用

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-31 DOI: 10.1016/j.ssc.2024.115646

Haiyan Guo , A.A. Bokov , Yia-Chung Chang , Zuo-Guang Ye

{"title":"Study of spin-phonon interaction in multiferroic La0.9Bi0.1CrO3 by Raman spectroscopy","authors":"Haiyan Guo , A.A. Bokov , Yia-Chung Chang , Zuo-Guang Ye","doi":"10.1016/j.ssc.2024.115646","DOIUrl":"10.1016/j.ssc.2024.115646","url":null,"abstract":"<div>Spin-phonon interaction is an interesting phenomenon that may find applications in spintronics, quantum information processing, etc. In multiferroic materials, spin-phonon interaction, if exists, may provide additional degrees of freedom that could lead to the development of novel technologies. Thus, investigating and understanding this interaction in a multiferroic material is of both fundamental and applied interests. Perovskite La1-xBixCrO3 is a mutiferroic material which turns from antiferromagnetic/antiferroelectric to ferromagnetic/ferroelectric with 10 % substitution of Bi3+ for La3+. Raman spectrum feature changes dramatically with 10 % substitution of Bi3+ for La3+ also, indicating a spin-phonon interaction. Furthermore, in La0.9Bi0.1CrO3, the ∼700 cm−1 mode is split into two Raman sub-modes. The intensity of the lower frequency (680 cm−1) sub-mode starts increasing sharply around the Néel temperature TN = 269 K upon cooling. Below TN, the monotonic change in intensity reflects the magnetic exchange modulation, resulted from the interacting with the chromium atoms oscillation at the original Cr4+ position in LaCrO3, related to the competing ferromagnetic and antiferromagnetic interactions, with the former prevailing at low temperatures. The interplay of magnetic exchange modulation interactions and chromium atoms oscillation (decreasing of the lower frequency sub-mode of the Bi3+ doping related John-Teller-like 700 cm−1 mode) coincides with the corresponding magnetic phase transition (TN), demonstrating a spin-phonon coupling in La0.9Bi0.1CrO3 which may find applications in magnonic devices.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"391 ","pages":"Article 115646"},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962289","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

An inspection of the metal-foam beam considering torsional dynamic responses 考虑扭转动态响应的金属泡沫梁检查

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-31 DOI: 10.1016/j.ssc.2024.115638

Jiaman Li , Zhixin Wu , Mostafa Habibi , Ibrahim Albaijan

{"title":"An inspection of the metal-foam beam considering torsional dynamic responses","authors":"Jiaman Li , Zhixin Wu , Mostafa Habibi , Ibrahim Albaijan","doi":"10.1016/j.ssc.2024.115638","DOIUrl":"10.1016/j.ssc.2024.115638","url":null,"abstract":"<div>Metal foam is a multifunctional material with a lower specific weight, high stiffness and compressive strength, and high energy absorption. These remarkable properties make metal foams a promising candidate for conventional materials in different industrial fields. Despite numerous researches on mechanical behavior either static or dynamic of structures made of metal foams, torsional vibration analysis of metal foam structures is still uninvestigated. In this investigation, the influence of various imperfection distribution patterns on the torsional dynamic response of metal foam beams is examined within the framework of Timoshenko-Gere's theory. Two common materials i.e. SUS304 and Aluminum foams are considered the constructive materials of structure. Moreover, three imperfection distribution patterns are taken into account. The virtual work's principle has been employed to derive the torsional governing equation of metal foam beams. Then, the derived governing equation has been solved via an analytical method. The accuracy of the employed methodology has been compared with the findings of former research in the literature. Finally, the influences of different notable parameters on the variation of natural torsional frequency have been examined and demonstrated in a group of tables and diagrams.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"391 ","pages":"Article 115638"},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962290","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

Lindemann ratio for classical and quantum crystals 经典晶体和量子晶体的林德曼比

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-30 DOI: 10.1016/j.ssc.2024.115647

Mahach N. Magomedov

{"title":"Lindemann ratio for classical and quantum crystals","authors":"Mahach N. Magomedov","doi":"10.1016/j.ssc.2024.115647","DOIUrl":"10.1016/j.ssc.2024.115647","url":null,"abstract":"<div>Based on the delocalized of melting criterion, a relatively simple analytical (i.e., without computer simulation) method for calculating the Lindemann ratio is proposed. It is shown that for classical single-component solids (in which the melting point (Tm) is greater than the Debye temperature (Θ): Tm/Θ > 1.5), the Lindemann ratio is determined only by the packing coefficient of the structure. Calculations for various structures of classical solids (both crystalline and amorphous) showed good agreement with the estimates of other authors. For quantum single-component crystals (in which Tm/Θ < 0.4), the Lindemann ratio is determined not only by the crystal structure, but also by the Θ/Tm function. Therefore, when passing from the classical to the quantum area, the Tm(Θ) function changes its functional dependence. It was shown that for quantum crystals, the Lindemann ratio decreases with increasing pressure along the melting line. For quantum nanocrystals, the Lindemann ratio increases with an isobaric decrease in a nanocrystal size. At this, the more noticeably the shape of the nanocrystal deviates from the energy-optimal shape, the greater the sized increase in the Lindemann ratio. Therefore, the use of the Lindemann criterion to study the melting of quantum crystals (as they tried to when studying the melting of atomic metallic hydrogen) showed incorrect results.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"391 ","pages":"Article 115647"},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952325","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

High piezoelectricity Janus GaXI (X = S, Se, or Te): First-principles calculations 高压电性 Janus GaXI（X = S、Se 或 Te）：第一原理计算

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-27 DOI: 10.1016/j.ssc.2024.115640

Zujun Li , Jiasheng Luo , Haojun Ling , Jiawei Chen , Minru Wen , Huafeng Dong , Fugen Wu

{"title":"High piezoelectricity Janus GaXI (X = S, Se, or Te): First-principles calculations","authors":"Zujun Li , Jiasheng Luo , Haojun Ling , Jiawei Chen , Minru Wen , Huafeng Dong , Fugen Wu","doi":"10.1016/j.ssc.2024.115640","DOIUrl":"10.1016/j.ssc.2024.115640","url":null,"abstract":"<div>Two-dimensional (2D) Janus materials have received considerable interest because of their robust piezoelectricity generated by breaking the central symmetry, which have potential applications in micro/nanomotor and flexible robot skins. However, in the previous 2D piezoelectric material research system, strain and electric polarization were limited to the base plane, greatly restricting its applications. Based on density functional theory (DFT), we have found the monolayer and multilayer Janus GaXI (X = S, Se, or Te) with high planar and vertical piezoelectricity. The maximum out-of-plane piezoelectric coefficient (d33 = 19.96 p.m./V) of these materials is 7.8 and 2.6 times larger than those of the conventional three-dimensional (3D) piezoelectric materials α-quartz and AIN, respectively. The monolayer Janus GaTeI exhibits the largest in-plane piezoelectric coefficient (d11 = 11.27 p.m./V). Additionally, it is worth noting that the multilayer Janus GaXI of six high-symmetry stacking sequences exhibits stronger out-of-plane piezoelectric polarization in the vertical direction than the monolayer. The structure of GaSI monolayer is similar to that of honeycomb graphene monolayer, and GaSI multilayer is also similar to graphene multilayer. In the Janus GaXI system, the sign of the electrostatic potential gradients, the direction of out-of-plane polarization and the sign of relaxed-ion d31 values are the same. Our study shows that monolayers and multilayer Janus GaXI have excellent piezoelectricity, and they have wildly potential applications in micro/nano-electronic devices.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"391 ","pages":"Article 115640"},"PeriodicalIF":2.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141852748","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

Investigation of the experimental and theoretical band gap of PbVO3Cl for use in energy conversion devices 研究用于能量转换设备的 PbVO3Cl 的实验和理论带隙

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-27 DOI: 10.1016/j.ssc.2024.115645

İpek Harmanlı , Ahmet Aytekin , Emre Yusuf Göl , Mehtap Eanes , Engin Karabudak

{"title":"Investigation of the experimental and theoretical band gap of PbVO3Cl for use in energy conversion devices","authors":"İpek Harmanlı , Ahmet Aytekin , Emre Yusuf Göl , Mehtap Eanes , Engin Karabudak","doi":"10.1016/j.ssc.2024.115645","DOIUrl":"10.1016/j.ssc.2024.115645","url":null,"abstract":"<div>The major goal of the research described in this paper is to investigate the structure of electronic band and band gap of the novel semiconductor lead (II) trioxovanadate (V) chloride (PbVO3Cl). Depending on both experimental and theoretical (computational) results, the utility of PbVO3Cl as a semiconductor in solar fuel devices was discussed. The optical band gap was determined experimentally by applying Tauc Plot method to the absorption spectra of PbVO3Cl. Additionally, computational approaches for the structure prediction of PbVO3Cl have been studied. The electronic band structures were examined theoretically using local density (LDA), generalized gradient (GGA), and hybrid (HSE06) approximations. PbVO3Cl, which has an optical band gap of about 2.2 eV, has been shown to have promising photocatalytic properties. As a result of these approximations, the transition type of PbVO3Cl was determined as indirect. We also discussed the potential future application of PbVO3Cl in Lewis solar fuel devices as a combination of the photoanode and Si photocathode. And the solar efficiency of the PbVO3Cl–Si double-layer semiconductor system was calculated. Further experimental proofs can be important.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"391 ","pages":"Article 115645"},"PeriodicalIF":2.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141839718","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

Pressure-induced phase transitions of ZrAl2 from first-principles calculations 从第一原理计算看 ZrAl2 的压力诱导相变

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-26 DOI: 10.1016/j.ssc.2024.115643

Xusheng Xie , Qun Wei , Jing Luo , Xiaofei Jia , Meiguang Zhang

引用次数: 0

Mechanical and structural properties of monatomic zirconium metallic glass under pressure variations and annealing processes: A molecular dynamics study 单原子锆金属玻璃在压力变化和退火过程中的机械和结构特性：分子动力学研究

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-26 DOI: 10.1016/j.ssc.2024.115644

Abdelaziz EL kharraz , Tarik El hafi , Soufiane Assouli , Abdelali Samiri , Abdelhadi Kotri , Omar Bajjou , Youssef Lachtioui

{"title":"Mechanical and structural properties of monatomic zirconium metallic glass under pressure variations and annealing processes: A molecular dynamics study","authors":"Abdelaziz EL kharraz , Tarik El hafi , Soufiane Assouli , Abdelali Samiri , Abdelhadi Kotri , Omar Bajjou , Youssef Lachtioui","doi":"10.1016/j.ssc.2024.115644","DOIUrl":"10.1016/j.ssc.2024.115644","url":null,"abstract":"<div>The aim of this study is to investigate how different pressure levels and annealing times affect the local atomic structure and mechanical properties of pure zirconium metallic glasses. Using molecular dynamics simulations with the embedded atom method, we explored how these changes influence the material's inherent characteristics. Analysis of the radial distribution function, coordination number, and Voronoi tessellation revealed a spectrum of structural arrangements in metallic glass formed across a pressure range of 0–70 GPa. Additionally, the glass transition temperature increased with increasing pressure, accompanied by reduced free volume. The annealing process, ranging from 0 to 5 ns on metallic glass synthesized under 0 GPa pressure, showed the coordination number's significance in achieving a glassy state. Regarding mechanical behavior, both elastic constants and moduli showed a progressive increase with rising pressure, while Young's modulus and hardness displayed enhanced values with longer annealing times.</div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"392 ","pages":"Article 115644"},"PeriodicalIF":2.1,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844103","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

Prediction of the structural and magnetic properties of the all-d-metal Heusler alloys Ni–Mn–Cr 全 D 金属 Heusler 合金 Ni-Mn-Cr 的结构和磁性能预测

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2024-07-26 DOI: 10.1016/j.ssc.2024.115642

Changshuang Jiang

引用次数: 0