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Bulletin of the Russian Academy of Sciences: Physics最新文献

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Features of the Isotopic Distribution of Uranium at the Interface between Polar and Nonpolar Media
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708298
D. A. Rumyantseva, V. G. Zinoviev, I. A. Mitropolskii
{"title":"Features of the Isotopic Distribution of Uranium at the Interface between Polar and Nonpolar Media","authors":"D. A. Rumyantseva,&nbsp;V. G. Zinoviev,&nbsp;I. A. Mitropolskii","doi":"10.1134/S1062873824708298","DOIUrl":"10.1134/S1062873824708298","url":null,"abstract":"<p>The adsorption of UO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>·2TBP complexes in a heterogeneous system at the interface of a polar 5.6 М HNO<sub>3</sub> solution and a nonpolar polypropylene (C<sub>3</sub>H<sub>6</sub>)<sub><i>n</i></sub> surface was studied. The isotopic distribution of uranium changes at the vertical interface of the media. The kinetics of the extraction of UO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>·2TBP complexes in the heterogeneous system is described by the Erofeev–Kolmogorov pseudo-first-order model and the Ho–McKay pseudo-second-order model.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1806 - 1811"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875242","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}
引用次数: 0
Structural Features and Magnetic Properties of Bentonite–Iron Oxide Composite Materials
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708079
M. N. Shipko, A. V. Noskov, M. A. Stepovich, A. V. Agafonov, O. V. Alekseeva, D. N. Yashkova, E. S. Savchenko
{"title":"Structural Features and Magnetic Properties of Bentonite–Iron Oxide Composite Materials","authors":"M. N. Shipko,&nbsp;A. V. Noskov,&nbsp;M. A. Stepovich,&nbsp;A. V. Agafonov,&nbsp;O. V. Alekseeva,&nbsp;D. N. Yashkova,&nbsp;E. S. Savchenko","doi":"10.1134/S1062873824708079","DOIUrl":"10.1134/S1062873824708079","url":null,"abstract":"<p>A mixed magnetite–maghemite solid solution and a bentonite–iron oxide composite material are synthesized via chemical coprecipitation. It is found that the bentonite–iron oxides composite is characterized by considerably weaker residual magnetization and stronger coercive force than Fe<sub>3</sub>O<sub>4</sub>/γ-Fe<sub>2</sub>O<sub>3</sub> powder. X-ray diffraction and Mössbauer spectroscopy data show that bentonite influenced structural features of the magnetite–maghemite in the composite.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1690 - 1694"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875262","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}
引用次数: 0
Characteristics of the Flow of an Electric Current in a Two-Dimensional Periodic Element of a Magnetic Sensor
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708122
V. S. Shevtsov, P. A. Polyakov
{"title":"Characteristics of the Flow of an Electric Current in a Two-Dimensional Periodic Element of a Magnetic Sensor","authors":"V. S. Shevtsov,&nbsp;P. A. Polyakov","doi":"10.1134/S1062873824708122","DOIUrl":"10.1134/S1062873824708122","url":null,"abstract":"<p>A solution is presented for a non-standard boundary value problem using Laplace’s equation with mixed Dirichlet–Neumann boundary conditions in a two-dimensional element with periodically alternating media that have different conductivities. The distribution of current lines and equipotentials is found for different ratios of media conductivities in the barber-pole structure used in anisotropic magnetoresistive magnetic field sensors.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1715 - 1719"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875263","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}
引用次数: 0
Modeling the Excitation of a Microwave Dielectric Resonator with a Slot in the Wall of a Rectangular Waveguide
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708055
L. V. Alekseychik, A. A. Kurushin
{"title":"Modeling the Excitation of a Microwave Dielectric Resonator with a Slot in the Wall of a Rectangular Waveguide","authors":"L. V. Alekseychik,&nbsp;A. A. Kurushin","doi":"10.1134/S1062873824708055","DOIUrl":"10.1134/S1062873824708055","url":null,"abstract":"<p>The authors model the excitation of a semi-cylindrical dielectric resonator with the electromagnetic field of a slot made in the wide wall of a rectangular metal waveguide in the range of <i>U-</i>wavelengths. The dielectric resonator is made of a high-permeability low-loss dielectric. Numerical modeling is used to obtain the main technical parameters of the dielectric resonator antenna and patterns of the distribution of vectors of the resulting electromagnetic field. Frequency responses are determined along with data on the rate of attenuation of the dielectric resonator’s excitation, the loaded and unloaded <i>Q</i> factors, and the <i>Q</i> factor of the coupling of the dielectric resonator with free space. The pattern of the dielectric resonator’s radiation demonstrates its properties as an element of a microwave antenna.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1680 - 1683"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875175","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}
引用次数: 0
High-Precision Method for Measuring the Complex Dielectric Constant Ceramics with Low Losses in the Microwave Range Using Dielectric Resonators
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708092
V. M. Gevorkyan, Yu. A. Kazantsev, A. V. Shutov
{"title":"High-Precision Method for Measuring the Complex Dielectric Constant Ceramics with Low Losses in the Microwave Range Using Dielectric Resonators","authors":"V. M. Gevorkyan,&nbsp;Yu. A. Kazantsev,&nbsp;A. V. Shutov","doi":"10.1134/S1062873824708092","DOIUrl":"10.1134/S1062873824708092","url":null,"abstract":"<p>A technique for experimentally determining the complex dielectric constant of ceramic materials in the form of a miniature resonator placed within a below-cutoff rectangular waveguide is considered. High accuracy is achieved through the use of a specially designed measuring cell and advanced computing capabilities.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1699 - 1703"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875222","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}
引用次数: 0
Atomic Force Microscopy of Ribbon Amorphous Fe73(SiBNb)27 Alloys
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708183
T. P. Kaminskaya, M. A. Stepovich, M. N. Shipko, A. V. Stulov, V. V. Popov, E. S. Savchenko
{"title":"Atomic Force Microscopy of Ribbon Amorphous Fe73(SiBNb)27 Alloys","authors":"T. P. Kaminskaya,&nbsp;M. A. Stepovich,&nbsp;M. N. Shipko,&nbsp;A. V. Stulov,&nbsp;V. V. Popov,&nbsp;E. S. Savchenko","doi":"10.1134/S1062873824708183","DOIUrl":"10.1134/S1062873824708183","url":null,"abstract":"<p>Using atomic force microscopy methods, the surface structure of strip amorphous alloys—foils based on the composition Fe<sub>73</sub>(SiBNb)<sub>27</sub>, obtained by ultra-fast cooling by spraying the melt on a rapidly rotating copper drum was studied. The morphology of free and contact surfaces of foils was studied.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1743 - 1746"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875237","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}
引用次数: 0
Magnetic Interaction of Films with a Harmonic Surface Profile
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708067
M. A. Piatakov, M. L. Akimov, P. A. Polyakov
{"title":"Magnetic Interaction of Films with a Harmonic Surface Profile","authors":"M. A. Piatakov,&nbsp;M. L. Akimov,&nbsp;P. A. Polyakov","doi":"10.1134/S1062873824708067","DOIUrl":"10.1134/S1062873824708067","url":null,"abstract":"<p>We presented an analytical solution to the magnetostatic problem of finding the magnetic field strength of a film with a harmonic surface profile, as well as a relation for the scalar magnetic potential of this magnetic field. The energies and interaction forces of a pair of such films in the case of their location under each other and at displacement of the upper film relative to the lower one are calculated, and the vertical component of the force is analyzed as a function of the shear parameter.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1684 - 1689"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875240","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}
引用次数: 0
Erratum to: Condensates of the Magnetoexcitations in Quantum Hall Dielectrics
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824110029
A. V. Gorbunov, A. V. Larionov, L. V. Kulik, V. B. Timofeev
{"title":"Erratum to: Condensates of the Magnetoexcitations in Quantum Hall Dielectrics","authors":"A. V. Gorbunov,&nbsp;A. V. Larionov,&nbsp;L. V. Kulik,&nbsp;V. B. Timofeev","doi":"10.1134/S1062873824110029","DOIUrl":"10.1134/S1062873824110029","url":null,"abstract":"","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1862 - 1862"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1062873824110029.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to: Modification of the Implanted Silicon Surface by a Powerful Light Pulse
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S106287382411008X
B. F. Farrakhov, Ya. V. Fattakhov, A. L. Stepanov
{"title":"Erratum to: Modification of the Implanted Silicon Surface by a Powerful Light Pulse","authors":"B. F. Farrakhov,&nbsp;Ya. V. Fattakhov,&nbsp;A. L. Stepanov","doi":"10.1134/S106287382411008X","DOIUrl":"10.1134/S106287382411008X","url":null,"abstract":"","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1868 - 1868"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875264","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}
引用次数: 0
Erratum to: Limits of Laser Cooling of Light Alkali Metals in a Polychromatic Light Field
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824110054
R. Ya. Ilenkov, O. N. Prudnikov, A. V. Taichenachev, V. I. Yudin
{"title":"Erratum to: Limits of Laser Cooling of Light Alkali Metals in a Polychromatic Light Field","authors":"R. Ya. Ilenkov,&nbsp;O. N. Prudnikov,&nbsp;A. V. Taichenachev,&nbsp;V. I. Yudin","doi":"10.1134/S1062873824110054","DOIUrl":"10.1134/S1062873824110054","url":null,"abstract":"","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1865 - 1865"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1062873824110054.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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