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

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The Hall Effect in Amorphous and Crystalline Fe60Co20Si8B12 and Fe58Co20Si12B10 Ferromagnetic Alloys
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S106287382470833X
O. Kuvandikov, I. Subkhankulov, R. M. Razhabov, Sh. A. Khomitov
{"title":"The Hall Effect in Amorphous and Crystalline Fe60Co20Si8B12 and Fe58Co20Si12B10 Ferromagnetic Alloys","authors":"O. Kuvandikov,&nbsp;I. Subkhankulov,&nbsp;R. M. Razhabov,&nbsp;Sh. A. Khomitov","doi":"10.1134/S106287382470833X","DOIUrl":"10.1134/S106287382470833X","url":null,"abstract":"<p>A study is performed of the temperature dependences of the Hall coefficient, specific electrical resistance, and saturation magnetization for Fe<sub>60</sub>Co<sub>20</sub>Si<sub>8</sub>B<sub>12</sub> and Fe<sub>58</sub>Co<sub>20</sub>Si<sub>12</sub>B<sub>10</sub> alloys in amorphous and crystalline states. The relationship between these parameters is established and explained from the viewpoint of the theory of the anomalous Hall effect. Coefficients of the parameter of spin–orbital interaction are estimated on the basis of experimental data.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1836 - 1842"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875218","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
Using a New Capillary Viscometer to Study the Viscosity of Magnetic Fluid Systems
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708341
A. A. Churaev, E. V. Shel’deshova, E. V. Bondar’, P. A. Ryapolov
{"title":"Using a New Capillary Viscometer to Study the Viscosity of Magnetic Fluid Systems","authors":"A. A. Churaev,&nbsp;E. V. Shel’deshova,&nbsp;E. V. Bondar’,&nbsp;P. A. Ryapolov","doi":"10.1134/S1062873824708341","DOIUrl":"10.1134/S1062873824708341","url":null,"abstract":"<p>The authors study the viscosity of liquids using a capillary viscometer of their own design. A value of viscosity is determined by the drop in pressure in the capillary, which makes it possible to study optically opaque liquids and carry out measurements in a magnetic field. A series of calibration experiments are carried out on liquids with known values of viscosity. The obtained dependences of the magnetoviscous effect in magnetic fluid samples with different structures and physical parameters are consistent with known theoretical and experimental data.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1843 - 1849"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875257","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
Method of Simultaneous Generation of Local Electrtic and Magnetic Fields with Independently Controlled Amplitude and Frequency
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-12-23 DOI: 10.1134/S1062873824708237
Kh. R. Rostami
{"title":"Method of Simultaneous Generation of Local Electrtic and Magnetic Fields with Independently Controlled Amplitude and Frequency","authors":"Kh. R. Rostami","doi":"10.1134/S1062873824708237","DOIUrl":"10.1134/S1062873824708237","url":null,"abstract":"<p>An experimental setup has been developed that allows generating local bipolar electric and magnetic fields in a superconducting sample to study its magnetic, electronic, and crystalline microstates in one cycle. It is shown that the application of a damped oscillating local magnetic field to a superconducting sample induces an exponentially damped travelling magnetic wave. With decreasing wavelength and increasing wave energy, as more of the oscillations of the mentioned local field incident on the sample and twins, the induced travelling wave covers more and more twin boundaries and interacts with the L, C, R loops formed on them. This, in turn, leads to a gradual increase in the magnetic flux density in the trap and the residual resonant frequency of the oscillating circuit.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 11","pages":"1768 - 1773"},"PeriodicalIF":0.48,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875267","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
Magneto-Optical Effect in Magnetic Emulsions with Deformable Submicrometer Droplets 具有可变形亚微米液滴的磁乳液中的磁光学效应
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707815
S. S. Belykh, C. V. Yerin, I. V. Alferiev
{"title":"Magneto-Optical Effect in Magnetic Emulsions with Deformable Submicrometer Droplets","authors":"S. S. Belykh,&nbsp;C. V. Yerin,&nbsp;I. V. Alferiev","doi":"10.1134/S1062873824707815","DOIUrl":"10.1134/S1062873824707815","url":null,"abstract":"<p>The authors study the effect of changes in the transparency of magnetic emulsions with deformable droplets of submicrometer size under the influence of magnetic field. The effect the orientation and strength of the magnetic field and the concentration of microdroplets have on the amplitude of transparency changes is revealed. Experimental data on the field dependence of the magneto-optical effect and its dependence on the angle of the magnetic field’s orientation are compared via calculations in an approximation of anomalous diffraction. The possibility of determining interphase tension in magnetic emulsions is analyzed by studying the relaxation of optical effects.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1543 - 1548"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540745","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
Features of Magnetic Susceptibility of a Ferrofluid with a Non-Magnetic Filler 含非磁性填充物的铁流体的磁感应强度特征
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707852
Yu. I. Dikansky, D. V. Gladkikh, D. S. Dorozhko, A. V. Kurnev
{"title":"Features of Magnetic Susceptibility of a Ferrofluid with a Non-Magnetic Filler","authors":"Yu. I. Dikansky,&nbsp;D. V. Gladkikh,&nbsp;D. S. Dorozhko,&nbsp;A. V. Kurnev","doi":"10.1134/S1062873824707852","DOIUrl":"10.1134/S1062873824707852","url":null,"abstract":"<p>The features of the magnetic susceptibility of a magnetic fluid with a non-magnetic filler were experimentally studied. It was determined that the dependence of the magnetic susceptibility on the concentration of the non-magnetic filler has features. The explanation of the detected effects is based on the assumption of the influence of surface forces on the processes of relaxation of the magnetic moment of magnetic particles. It was also found that the dependences of the magnetic susceptibility of a magnetic fluid with a non-magnetic filler on the strength of the external magnetic field differ from similar dependences for the magnetic fluid without a filler.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1513 - 1517"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540765","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
Deformation of Magnetoactive Elastomers in Magnetic Field 磁性弹性体在磁场中的变形
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707980
G. V. Stepanov, P. A. Storozhenko
{"title":"Deformation of Magnetoactive Elastomers in Magnetic Field","authors":"G. V. Stepanov,&nbsp;P. A. Storozhenko","doi":"10.1134/S1062873824707980","DOIUrl":"10.1134/S1062873824707980","url":null,"abstract":"<p>Magnetoactive, also known as magnetorheological, elastomer is a composite material based on an elastic polymer filled with magnetic particles. The specifics of its deformation under the influence of magnetic fields have been the subject of this research. For instance, in non-homogeneous fields the degree of strain may reach hundreds of percent whereas magnetized samples containing high-coercivity (hard magnetic) components can suffer deformations occurring in a complex way. In addition to that, a sample responds to an external field with an increased roughness of its surface thus becoming more hydrophobic. The material also increases its stiffness by ten folds. These facts suggest that this elastomeric composite may be considered potentially useful for such areas as robotics and controllable damping units.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1549 - 1554"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540767","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
Features of the Formation of a Labyrinthine Structure in Thin Layers of Magnetic Fluids in a Constant Electric Field 恒定电场中磁性流体薄层迷宫结构的形成特点
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707797
E. S. Beketova, V. D. Mkrtchyan, Yu. I. Dikanskii
{"title":"Features of the Formation of a Labyrinthine Structure in Thin Layers of Magnetic Fluids in a Constant Electric Field","authors":"E. S. Beketova,&nbsp;V. D. Mkrtchyan,&nbsp;Yu. I. Dikanskii","doi":"10.1134/S1062873824707797","DOIUrl":"10.1134/S1062873824707797","url":null,"abstract":"<p>This paper presents the results of studying the features of the formation of structural lattices in thin layers of colloids in an electric field directed perpendicular to the plane of the layer, as well as under the additional influence of a magnetic field. New results were obtained about the dependence of the threshold (critical) value of the electric field strength corresponding to the formation of a labyrinthine structure on the strength of an additionally applied magnetic field, layer thickness, and temperature. The dependences of the formation time of the structure under study on temperature and the strength of the additionally applied magnetic field were characterized. A thermally induced phenomenon of the formation of a labyrinthine structure in a magnetic colloid in the subcritical region of the applied electric field strength under additional exposure to laser radiation was discovered.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1593 - 1599"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540785","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
A Controlled Circuit with a Capacitive Cell Based on a Magnetodielectric Fluid 基于磁电流体的电容电池受控电路
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S106287382470789X
V. M. Kozhevnikov, I. Yu. Chuenkova, Yu. A. Larionov
{"title":"A Controlled Circuit with a Capacitive Cell Based on a Magnetodielectric Fluid","authors":"V. M. Kozhevnikov,&nbsp;I. Yu. Chuenkova,&nbsp;Yu. A. Larionov","doi":"10.1134/S106287382470789X","DOIUrl":"10.1134/S106287382470789X","url":null,"abstract":"<p>The authors describe a controlled oscillatory RLC circuit in which a cell with a layer of magnetodielectric liquid is used as a capacitor element. The possibility of creating a self-tuning inductive-capacitive element based on a thin layer of magnetodielectric liquid is discussed. It is shown that changing the properties of a magnetodielectric liquid in electric and magnetic fields allows the creation of adjustable inductive-capacitive converters.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1555 - 1560"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540746","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
Testing of Theoretical Models Using Experimental Data on Magnetization of Magnetic Polymer Composites 利用磁性聚合物复合材料磁化实验数据检验理论模型
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S106287382470792X
D. I. Radushnov, A. Yu. Solovyova, E. A. Elfimova, A. V. Chernyshov, A. R. Zakinyan, S. A. Kunikin
{"title":"Testing of Theoretical Models Using Experimental Data on Magnetization of Magnetic Polymer Composites","authors":"D. I. Radushnov,&nbsp;A. Yu. Solovyova,&nbsp;E. A. Elfimova,&nbsp;A. V. Chernyshov,&nbsp;A. R. Zakinyan,&nbsp;S. A. Kunikin","doi":"10.1134/S106287382470792X","DOIUrl":"10.1134/S106287382470792X","url":null,"abstract":"<p>Magnetic properties of magnetic polymer composite materials were studied. Monodisperse and bidisperse theoretical models considering interparticle dipole–dipole interactions were verified using experimental data. It was determined that the bidisperse approximation well describe the experimental results for real polydisperse composites.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1524 - 1529"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540764","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
On the Problem of Magnetically Induced Circulations in Thrombosed Channels 论血栓通道中的磁诱导循环问题
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707906
A. Yu. Musikhin, A. Yu. Zubarev
{"title":"On the Problem of Magnetically Induced Circulations in Thrombosed Channels","authors":"A. Yu. Musikhin,&nbsp;A. Yu. Zubarev","doi":"10.1134/S1062873824707906","DOIUrl":"10.1134/S1062873824707906","url":null,"abstract":"<p>A theoretical model and a method for its approximation analysis are developed to study circulation flows arising in a channel with a nonuniform alternating rotating magnetic field. This channel contains a nonmagnetic fluid into which a cloud of a ferrofluid is injected, the particles of which are distributed along the channel according to the Gaussian law. It is assumed that the right end of the channel is blocked to simulate a thrombosed vessel. The main goal of the study is to develop a scientific basis for increasing the efficiency of transport of thrombolytic drugs in thrombosed blood vessels using magnetic stimulation.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1611 - 1617"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540789","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
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