Acta Physica Polonica A最新文献

{"title":"Phase Structures and Electromechanical Properties of Differently Oriented Epitaxial K0.5Na0.5NbO3 Thin Films","authors":"Q. Li, L. Liu, Y. Ye, J.B. Lv, H. Cao, X.X. Sheng","doi":"10.12693/aphyspola.145.175","DOIUrl":"https://doi.org/10.12693/aphyspola.145.175","url":null,"abstract":"An evolved nonlinear thermodynamic theory is used to investigate the phase structures and electrome-chanical properties of differently oriented K 0 . 5 Na 0 . 5 NbO 3 thin films. It is revealed that notable distinctions in the phase structure of K 0 . 5 Na 0 . 5 NbO 3 thin films, with decreasing symmetry observed in the order of (111), (001), and (110) orientations, and these microphase structural variances translate into distinct electromechanical properties. Moreover, it is observed that the oriented K 0 . 5 Na 0 . 5 NbO 3 thin films exhibit commendable out-of-plane dielectric and piezoelectric properties around the specific phase boundaries, such as M aac –O aa and Te c –PE phase boundaries for (001) oriented films, M aac –O aa and Te c –PE phase boundaries for (110) oriented films, R aaa –PE phase boundary for (111) oriented films. Specifically, near room temperature, the (001) and (110) oriented K 0 . 5 Na 0 . 5 NbO 3 thin films outperform (111) oriented K 0 . 5 Na 0 . 5 NbO 3 thin films in terms of dielectric properties, featuring a dielectric constant exceeding 2500. Furthermore, (001) oriented K 0 . 5 Na 0 . 5 NbO 3 thin films exhibit superior out-of-plane piezoelectric properties compared to other orientations, with a remarkable piezoelectric coefficient d 33 exceeding 1000 pm/V. These results underscore the significant impact of strain and temperature regulation on electromechanical properties. Meanwhile, by strategically adjusting these parameters, it becomes feasible to fabricate high-properties piezoelectric devices.","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140774318","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}

{"title":"Spin-Orbit Coupled Dynamics of Ferromagnetic Spinor Bose-Einstein Condensate","authors":"Qiang Zhao","doi":"10.12693/aphyspola.145.162","DOIUrl":"https://doi.org/10.12693/aphyspola.145.162","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755930","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}

{"title":"SCAPS Modeling of CMTS Solar Cell with ZrS2 Buffer Layer","authors":"T. A. Chowdhury","doi":"10.12693/aphyspola.145.215","DOIUrl":"https://doi.org/10.12693/aphyspola.145.215","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140795807","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}

{"title":"Attenuation Properties of DNA Nucleobases Against Nuclear Radiation Using EpiXS, Py-MLBUF, and NGCal Software","authors":"G. B. Hiremath, V.P. Singh, P. N. Patil, N. H. Ayachit, N. M. Badiger","doi":"10.12693/aphyspola.145.208","DOIUrl":"https://doi.org/10.12693/aphyspola.145.208","url":null,"abstract":".","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140764356","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}

{"title":"The Effect of Vibration Frequency on the Effective Mass Spin Splitting of Polaron in a Parabolic Quantum Well","authors":"S. Shan, W. Liu, W.-D. Zou, R.-X. Chen, C. Hu","doi":"10.12693/aphyspola.145.157","DOIUrl":"https://doi.org/10.12693/aphyspola.145.157","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140756239","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}

{"title":"Ab Initio Study of the Physical Properties of Cs-Based Double Perovskites Cs2AX6 (A = Ge, Mn; X = Cl, I)","authors":"A. A. Yahaya, W. Yahya, A.S. Ahmed, A. A. Sholagberu","doi":"10.12693/aphyspola.145.194","DOIUrl":"https://doi.org/10.12693/aphyspola.145.194","url":null,"abstract":"Device applications in magnetic media, spintronics, oxygen membranes, sensors, etc., are some of the uses of ferrite materials. In this work, we have studied the structural, electronic, magnetic, mechanical, and thermoelectric properties of Cs-based double perovskites Cs 2 AX 6 (A = Ge, Mn; X = Cl, I), using Quantum Espresso with generalized gradient approximation Perdew–Burke–Ernzerhof and Perdew– Burke–Ernzerhof in solids exchange–correlation functionals. The band structure results show that Cs 2 GeCl 6 and Cs 2 MnCl 6 are semiconductors with direct band gaps. However, there are bands crossing observed for Cs 2 GeI 6 from the conduction band minimum to the valence band maximum, indicating the metallic nature of the material. Moreover, Cs 2 MnI 6 has magnetic properties; it exhibits a metallic nature in the spin-up state and a semiconductor nature in the spin-down state, suggesting that it can be used in spintronics applications. The calculated total magnetic moment of Cs 2 MnCl 6 is 3 . 0 µ B (for both Perdew–Burke–Ernzerhof and Perdew–Burke–Ernzerhof in solids), while for Cs 2 MnI 6 , the calculated total magnetic moments are 3 . 02 µ B and 3 . 06 µ B , for Perdew–Burke–Ernzerhof and Perdew– Burke–Ernzerhof in solids exchange–correlation functionals, respectively. The results of the mechanical properties calculations show that Cs-based double perovskites Cs 2 AX 6 (A = Ge, Mn; X = Cl, I) are mechanically stable. Cauchy’s pressure and Poisson’s, Frantsevich’s, and Pugh’s ratios of the studied materials confirm that Cs 2 MnCl 6 is brittle, while the remaining studied double perovskite materials are ductile. Electrical conductivity, thermal conductivity, Seebeck coefficients, power factor, and figure of merit are the thermoelectric parameters analyzed in this study. Seebeck coefficients, electrical conductivity, and power factor increase with the rise in temperature, and Cs 2 MnX 6 (X = Cl, I) double perovskite materials have higher values of electrical conductivity than Cs 2 GeX 6 (X = Cl, I). All the studied materials have positive type conductivity due to their positive Seebeck coefficient values.","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140775714","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}

{"title":"Monte Carlo Study of a Three-Dimensional Semi-infinite Spin-1/2 System Limited by a Spin-1 Surface","authors":"O. Elgarraoui, K. El Kihel, M. Monkade, M. Madani, M. El Bouziani","doi":"10.12693/aphyspola.145.186","DOIUrl":"https://doi.org/10.12693/aphyspola.145.186","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781923","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}

{"title":"Effect of Li Doping on Structural, Optical, and Electrical Properties of CuO Thin Films Produced by Spray Pyrolysis Method","authors":"N. Allouche, B. Boudjema, R. Daira, F. Bayansal","doi":"10.12693/aphyspola.145.169","DOIUrl":"https://doi.org/10.12693/aphyspola.145.169","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140779147","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}

{"title":"Growth of the Nanostructured Titanium Oxide by Anodization of Ti/Cu/Ti System","authors":"J.C. Chojenka, A. Zarzycki","doi":"10.12693/aphyspola.145.147","DOIUrl":"https://doi.org/10.12693/aphyspola.145.147","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140465964","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}

{"title":"Controlling the Magnetic Properties of Fe-Based Composite Nanoparticles","authors":"O. Polit, M. S. Shakeri, Z. Swiatkowska-Warkocka","doi":"10.12693/aphyspola.145.139","DOIUrl":"https://doi.org/10.12693/aphyspola.145.139","url":null,"abstract":"","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464832","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}