Pub Date : 2019-06-12DOI: 10.33581/2520-2243-2019-2-105-111
V. Uglov, S. Zlotski, I. A. Solodukhin, A. A. Malashevich
In the present work, the microstructure and phase composition of multilayered nanoscaled ZrN/SiNx coatings with different thicknesses of individual ZrN and SiNx layers were investigated. The results of transmission electron microscopy (HRTEM) showed that multilayer ZrN/SiNx coatings formed by reactive magnetron deposition are alternating layers of ZrN and SiNx. The X-ray reflectometry (XRR) method made it possible to determine the density, thickness, and surface roughness of individual ZrN and SiNx layers. X-ray diffraction analysis showed that ZrN and SiNx layers have a crystalline and amorphous structure, respectively. The phase composition of mononitride ZrN coatings is characterized by the presence ZrN phase with preferential orientation (111). Phase composition results indicate a change in the preferential orientation from (111) observed for the mononitride ZrN films, to (200) forming in the multilayered ZrN/SiNx coatings.
{"title":"Microstructure and phase composition of ZrN/SiNx multilayered coatings formed by reactive magnetron deposition","authors":"V. Uglov, S. Zlotski, I. A. Solodukhin, A. A. Malashevich","doi":"10.33581/2520-2243-2019-2-105-111","DOIUrl":"https://doi.org/10.33581/2520-2243-2019-2-105-111","url":null,"abstract":"In the present work, the microstructure and phase composition of multilayered nanoscaled ZrN/SiNx coatings with different thicknesses of individual ZrN and SiNx layers were investigated. The results of transmission electron microscopy (HRTEM) showed that multilayer ZrN/SiNx coatings formed by reactive magnetron deposition are alternating layers of ZrN and SiNx. The X-ray reflectometry (XRR) method made it possible to determine the density, thickness, and surface roughness of individual ZrN and SiNx layers. X-ray diffraction analysis showed that ZrN and SiNx layers have a crystalline and amorphous structure, respectively. The phase composition of mononitride ZrN coatings is characterized by the presence ZrN phase with preferential orientation (111). Phase composition results indicate a change in the preferential orientation from (111) observed for the mononitride ZrN films, to (200) forming in the multilayered ZrN/SiNx coatings.","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85132701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-12DOI: 10.33581/2520-2243-2019-2-96-104
Vasily G. Shepelevich, O. Gusakova, D. Alexandrov, I. Starodumov
О б р а з е ц ц и т и р о в а н и я: Шепелевич ВГ, Гусакова ОВ, Александров ДВ, Стародумов ИО. Фазовый состав заэвтектического силумина при высокоскоростном затвердевании. Журнал Белорусского го сударственного университета. Физика. 2019;2:96 –104. https://doi.org/10.33581/2520-2243-2019-2-96-104 F o r c i t a t i o n: Shepelevich VG, Gusakova OV, Alexandrov DV, Starodumov IO. Phase composition of hypereutectic silumin at rapid solidification. Journal of the Belarusian State University. Physics. 2019; 2:96 –104. Russian. https://doi.org/10.33581/2520-2243-2019-2-96-104
伊俄两国:谢佩列维奇vg、古萨科夫v、亚历山大d、老伊俄。高速硬化中共晶志留纪的相组成。白俄罗斯苏达尔大学日志。物理，2019,2:96 - 104。https://doi.org/10.33581/2520-2243-2019-2-96-104 F o r i c t a t i o n: Shepelevich经Gusakova OV, Alexandrov DV Starodumov IO。在rapid solidification中有一个超自然的组合。贝鲁斯州立大学杂志。物理2019;2:96 104。俄罗斯。https://doi.org/10.33581/2520-2243-2019-2-96-104
{"title":"Phase composition of hypereutectic silumin at rapid solidification","authors":"Vasily G. Shepelevich, O. Gusakova, D. Alexandrov, I. Starodumov","doi":"10.33581/2520-2243-2019-2-96-104","DOIUrl":"https://doi.org/10.33581/2520-2243-2019-2-96-104","url":null,"abstract":"О б р а з е ц ц и т и р о в а н и я: Шепелевич ВГ, Гусакова ОВ, Александров ДВ, Стародумов ИО. Фазовый состав заэвтектического силумина при высокоскоростном затвердевании. Журнал Белорусского го сударственного университета. Физика. 2019;2:96 –104. https://doi.org/10.33581/2520-2243-2019-2-96-104 F o r c i t a t i o n: Shepelevich VG, Gusakova OV, Alexandrov DV, Starodumov IO. Phase composition of hypereutectic silumin at rapid solidification. Journal of the Belarusian State University. Physics. 2019; 2:96 –104. Russian. https://doi.org/10.33581/2520-2243-2019-2-96-104","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85315594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-12DOI: 10.33581/2520-2243-2019-2-58-65
E. A. Kolesov, Artem D. Pashinskiy, M. Tivanov, O. Korolik, O. Kapitanova, G. Panin
Introduction. Studies of the substrate influence on graphene properties are relevant due to the high sensitivity of this two-dimensional material to the smallest effects. At the same time, studies dedicated to the separation of direct substrate influence and residual synthesis effects on graphene properties are not described in the literature in sufficient detail. Materials and methods. This paper presents the results of a study of the structural properties of as-grown and transferred graphene on copper substrates by Raman spectroscopy and atomic force microscopy. Results and discussion. Using Raman spectroscopy, we found that the mechanical strain in the as-grown grapheme is increased, while negligibly small in transferred graphene, the strain coefficients being of 0.22– 0.33 and ∼ 0 %, respectively. Using atomic force microscopy, we showed that this effect does not relate to the copper surface irregularities: the average roughness of the substrate surface for as-grown graphene was of 20.4 nm, while for the transferred graphene it was of 62.0 nm, the height difference being of almost an order of magnitude greater for the latter. This contradiction was explained in terms of residual synthesis effects present in case of as-grown graphene. Conclusion. Taking into account the analyzed substrate effects is important both for the refinement of methods for the initial characterization of as-grown graphene, and for practical applications requiring graphene transfer to corrugated and perforated substrates, membranes and objects of complex shape.
{"title":"Structural properties of graphene on copper substrates","authors":"E. A. Kolesov, Artem D. Pashinskiy, M. Tivanov, O. Korolik, O. Kapitanova, G. Panin","doi":"10.33581/2520-2243-2019-2-58-65","DOIUrl":"https://doi.org/10.33581/2520-2243-2019-2-58-65","url":null,"abstract":"Introduction. Studies of the substrate influence on graphene properties are relevant due to the high sensitivity of this two-dimensional material to the smallest effects. At the same time, studies dedicated to the separation of direct substrate influence and residual synthesis effects on graphene properties are not described in the literature in sufficient detail. Materials and methods. This paper presents the results of a study of the structural properties of as-grown and transferred graphene on copper substrates by Raman spectroscopy and atomic force microscopy. Results and discussion. Using Raman spectroscopy, we found that the mechanical strain in the as-grown grapheme is increased, while negligibly small in transferred graphene, the strain coefficients being of 0.22– 0.33 and ∼ 0 %, respectively. Using atomic force microscopy, we showed that this effect does not relate to the copper surface irregularities: the average roughness of the substrate surface for as-grown graphene was of 20.4 nm, while for the transferred graphene it was of 62.0 nm, the height difference being of almost an order of magnitude greater for the latter. This contradiction was explained in terms of residual synthesis effects present in case of as-grown graphene. Conclusion. Taking into account the analyzed substrate effects is important both for the refinement of methods for the initial characterization of as-grown graphene, and for practical applications requiring graphene transfer to corrugated and perforated substrates, membranes and objects of complex shape.","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85970077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-29DOI: 10.33581/2520-2243-2019-2-36-40
L. Jenkovszky, I. Szanyi, J. Turóci
In the framework of a Regge-pole model, we discussthe forward phase of the proton-proton elastic scattering amplitude (ρ(13 TeV) = 0.1 ± 0.01), recently measured at the LHC. Our model includesa dipole pomeron, odderon and secondary reggeon exchanges. It accommodetes forthe low- |t| «break» (departure from the exponential behavior of the diffraction cone), the accelerating rise with energy of the forward slope B(s, t = 0) and absence of secondary dips and bumps. Contrary to the majority of Regge-pole models, our approach is based on he use of a dipole (double pole) pomeron (DP). It has a number of advantages over the conventional simple pole pomeron: DP generates rising cross sections even at unit pomeron intercept and, what is even more important, it produces a single diffraction minimum and maximum in the differential cross section, in accord with the experimental data. Relative contributions from different components to the scattering amplitude are evaluated from the fitted model.
在Regge-pole模型的框架下，我们讨论了最近在LHC上测量到的质子-质子弹性散射振幅(ρ(13 TeV) = 0.1±0.01)的前相。我们的模型包括偶极子、奇偶子和次级区域交换。它可以适应低- t -“断裂”(偏离衍射锥的指数行为)，随着能量的加速上升，向前斜率B(s, t = 0)，并且没有二次倾斜和颠簸。与大多数Regge-pole模型相反，我们的方法是基于偶极子(双极)pomeron (DP)的使用。与传统的简单极波美伦相比，它有许多优点:即使在单位波美伦截距处，DP也产生上升截面，更重要的是，它在微分截面上产生单个衍射最小值和最大值，与实验数据一致。根据拟合模型计算了不同分量对散射振幅的相对贡献。
{"title":"The odderon: myths and reality","authors":"L. Jenkovszky, I. Szanyi, J. Turóci","doi":"10.33581/2520-2243-2019-2-36-40","DOIUrl":"https://doi.org/10.33581/2520-2243-2019-2-36-40","url":null,"abstract":"In the framework of a Regge-pole model, we discussthe forward phase of the proton-proton elastic scattering amplitude (ρ(13 TeV) = 0.1 ± 0.01), recently measured at the LHC. Our model includesa dipole pomeron, odderon and secondary reggeon exchanges. It accommodetes forthe low- |t| «break» (departure from the exponential behavior of the diffraction cone), the accelerating rise with energy of the forward slope B(s, t = 0) and absence of secondary dips and bumps. Contrary to the majority of Regge-pole models, our approach is based on he use of a dipole (double pole) pomeron (DP). It has a number of advantages over the conventional simple pole pomeron: DP generates rising cross sections even at unit pomeron intercept and, what is even more important, it produces a single diffraction minimum and maximum in the differential cross section, in accord with the experimental data. Relative contributions from different components to the scattering amplitude are evaluated from the fitted model.","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79091351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-20DOI: 10.33581/2520-2243-2019-2-66-72
N. S. Mahon, T. Zelenyak, O. Korolik, P. Gladyshev, A. Mazanik
The pyridine treated films of organic-inorganic perovskites with CH3NH3PbI3 and CH3NH3Pb(I0,57Cl0,43)3 composition were studied. An analysis of the transmission and photoluminescence spectra, as well as kinetics of photoluminescence band intensity and mass center under continuous illumination showed that the effect of pyridine on organic-inorganic perovskites is ambiguous, because along with photostabilization (decrease in the rate of change of photoluminescence band parameters under illumination), the substantial decrease of dark stability takes place, which manifests itself in the change of phase composition during storage.
{"title":"Influence of pyridine treatment on the optical properties of organic-inorganic perovskite films","authors":"N. S. Mahon, T. Zelenyak, O. Korolik, P. Gladyshev, A. Mazanik","doi":"10.33581/2520-2243-2019-2-66-72","DOIUrl":"https://doi.org/10.33581/2520-2243-2019-2-66-72","url":null,"abstract":"The pyridine treated films of organic-inorganic perovskites with CH3NH3PbI3 and CH3NH3Pb(I0,57Cl0,43)3 composition were studied. An analysis of the transmission and photoluminescence spectra, as well as kinetics of photoluminescence band intensity and mass center under continuous illumination showed that the effect of pyridine on organic-inorganic perovskites is ambiguous, because along with photostabilization (decrease in the rate of change of photoluminescence band parameters under illumination), the substantial decrease of dark stability takes place, which manifests itself in the change of phase composition during storage.","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83560744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The University's Relationships with Other Colleges and Universities","authors":"D. Henry","doi":"10.7560/700659-002","DOIUrl":"https://doi.org/10.7560/700659-002","url":null,"abstract":"","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"318 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1959-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75457941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Emergent Challenges: The State University of the Future","authors":"L. Wilson","doi":"10.7560/700659-006","DOIUrl":"https://doi.org/10.7560/700659-006","url":null,"abstract":"","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1959-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86984084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Participants in the Conference","authors":"Philip Lowe","doi":"10.1093/ajhp/48.4.719","DOIUrl":"https://doi.org/10.1093/ajhp/48.4.719","url":null,"abstract":"","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1959-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81912059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Education for Undergraduates","authors":"C. Odegaard","doi":"10.7560/700659-003","DOIUrl":"https://doi.org/10.7560/700659-003","url":null,"abstract":"","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1959-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79957601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Frontmatter","authors":"","doi":"10.7560/700659-fm","DOIUrl":"https://doi.org/10.7560/700659-fm","url":null,"abstract":"","PeriodicalId":17264,"journal":{"name":"Journal of the Belarusian State University. Physics","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1959-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78524809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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