Библиотека института физики им. Л.В. Киренского СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Melnikova S. V., Shabanova L. A., Zaitsev A. I., Parshikov S. A., Ageev O. A., Aleksandrov K. S.
Заглавие : Ferroelastic phase transition in Cs3Bi2I9 crystal
Место публикации : Ferroelectrics, Letters Section. - 1996. - Vol. 20, Is. 5-6. - P.163-167. - ISSN 0731-5171
Ключевые слова (''Своб.индексиров.''): birefringence--cesium compounds--crystal symmetry--crystals--differential scanning calorimetry--elasticity--ferroelectricity--permittivity--stiffness--twinning--cesium bismuth iodide--elastic constant--elastic stiffness--ferroelastic phase transition--phase transitions
Аннотация: Phase transition (PT) was found in Cs3Bi2I9 single crystal at T0=223 K. Optical birefringence, dielectric and elastic constants and differential scanning calorimetry have been studied. It was found that birefringence ?nc and twinning picture appeared on (001) - and (100) - plates below T0, as well as softening of elastic stiffness C44 above T0. It allows to classify the PT as proper ferroelastic one with symmetry change 6/mmm - 2/m. В© 1996 OPA (Overseas Publishers Association) Amsterdam B.V. Published in The Netherlands under license by Gordon and Breach Science Publishers SA.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Dubrovskii A. A., Shaikhutdinov K. A., Popkov S. I., Gokhfeld D. M., Gokhfeld Yu. S., Petrov M. I.
Заглавие : Mechanism of the hysteretic behavior of the magnetoresistance of granular HTSCs: The universal nature of the width of the magnetoresistance hysteresis loop
Коллективы : Quantum Macrophysics of the Russian Academy of Sciences [3.4]; Krasnoyarsk Regional Science Foundation [18G011]; Foundation for Supporting National Science Projects
Место публикации : J. Exp. Theor. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2009. - Vol. 108, Is. 2. - P241-248. - ISSN 1063-7761, DOI 10.1134/S106377610902006X
Примечания : Cited References: 32. - This study was carried out under the program "Quantum Macrophysics" of the Russian Academy of Sciences and complex integration project no. 3.4 of the Siberian Branch of the Russian Academy of Sciences, and was partly supported by the Krasnoyarsk Regional Science Foundation (grant no. 18G011). D. A. B. and A. A. D. are grateful to the Foundation for Supporting National Science Projects.
Предметные рубрики: CRITICAL-CURRENT-DENSITY
HIGH-TEMPERATURE SUPERCONDUCTOR
CURRENT-VOLTAGE CHARACTERISTICS
EXTERNAL MAGNETIC-FIELD
BA-CU-O
JOSEPHSON MEDIUM
CRITICAL-STATE
FLUX
COMPOSITES
YBA2CU3O7-DELTA
Ключевые слова (''Своб.индексиров.''): barium--calcium--damping--electric resistance--high temperature superconductors--magnetic field effects--magnetic materials--magnetoelectronics--magnetoresistance--stiffness--classical systems--critical densities--experimental datum--external conditions--flux trapping--hysteretic behaviors--josephson vortices--residual resistances--transport currents--universal behaviors--y-ba-cu-o--hysteresis
Аннотация: The hysteretic behavior of the magnetoresistance R(H) of granular high-temperature superconductors (HTSCs) of the Y-Ba-Cu-O, Bi-Ca-Sr-Cu-O, and La-Sr-Cu-O classical systems is investigated for transport current densities lower and higher than the critical density (at H = 0). All systems exhibit universal behavior of the width of the magnetoresistance hysteresis loop: independence of transport current under identical external conditions. This means that flux trapping in HTSC grains is the main mechanism controlling the hysteretic behavior of the magnetoresistance of granular HTSCs, while pinning of Josephson vortices in the intragranular medium makes no appreciable contribution to the formation of magnetoresistance hysteresis (when transport current flows through the sample). Experimental data on relaxation of residual resistance after the action of a magnetic field also confirm this conclusion.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Komogortsev S. V., Iskhakov R. S., Denisova E. A., Balaev A. D.
Заглавие : Exchange stiffness in nanocrystalline ferromagnetic alloys determined by approaching to saturation
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016): abstracts/ ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk: KIP RAS SB, 2016. - Ст.I10.2. - P.428. - ISBN 978-5-904603-06-9 (Шифр -478014040)
Примечания : References: 2. - This work was supported by the Russian Foundation for Basic Research, Grants No. 16-03-00256, 15-08-06673 and RFBR-KRFS 15-42-0417
Ключевые слова (''Своб.индексиров.''): ferromagnetics--exchange stiffness--nanostructures
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vazhenina I. G., Iskhakov R. S., Chekanova L. A.
Заглавие : Spin-wave resonance in chemically deposited Fe-Ni films: measuring the spin-wave stiffness and surface anisotropy constant
Коллективы : Russian Foundation for Basic Research [16-03-00256, 16-03-00969]
Место публикации : Phys. Solid State. - 2018. - Vol. 60, Is. 2. - P.292-298. - ISSN 1063-7834, DOI 10.1134/S1063783418020294. - ISSN 1090-6460(eISSN)
Примечания : Cited References:39. - This study was supported by the Russian Foundation for Basic Research, projects nos. 16-03-00256 and 16-03-00969.
Предметные рубрики: FERROMAGNETIC-RESONANCE
FERRIHYDRITE NANOPARTICLES
LAYERS
Аннотация: Single-layer Fe x Ni1 - x thin magnetic films have been investigated by the spin-wave resonance technique in the entire concentration range. The surface anisotropy and exchange stiffness constants for the films with a Ni content from 30 to 80 at % have been measured from the experimental standing spin wave spectra. The surface exchange spin wave penetration depth δ C = 20–30 nm has been determined from the dependences of the surface anisotropy and exchange coupling constants on the Fe20Ni80 film thickness in the range of 250–400 nm.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Blyakhman F. A., Makarova E. B., Shabadrov P. A., Fadeyev F. A., Shklyar T. F., Safronov A. P., Komogortsev S. V., Kurlyandskaya, G., V
Заглавие : Magnetic nanoparticles as a strong contributor to the biocompatibility of ferrogels
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [18-19-00090]
Место публикации : Phys. Metals Metallogr. - 2020. - Vol. 121, Is. 4. - P.299-304. - ISSN 0031-918X, DOI 10.1134/S0031918X2004002X. - ISSN 1555-6190(eISSN)
Примечания : Cited References: 17. - This study was supported by the Russian Science Foundation, grant no. 18-19-00090.
Предметные рубрики: STIFFNESS
Аннотация: Biomedical engineering is the most promising field for the application of ferrogels as scaffolds for cell culturing in regenerative medicine, targeted drug delivery, and biosensorics. This study is focused on the contribution of ferric-oxide magnetic nanoparticles (MNPs) to the biocompatibility of ferrogels with human dermal fibroblasts. The results of experiments with polyacrylamide gels filled with MNPs are presented. These experiments demonstrate that, regardless of the mechanical and electrical characteristics of ferrogels, MNPs have a significant effect on the biological activity of cells.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ilin N. V., Komogortsev S. V., Kraynova G. S., Davydenko A. V., Tkachenko I. A., Kozlov A. G., Tkachev V. V., Plotnikov V. S.
Заглавие : Magnetic correlations peculiarities in amorphous Fe-Cu-Nb-Si-B alloy ribbons
Место публикации : J. Magn. Magn. Mater. - 2022. - Vol. 541. - Ст.168525. - ISSN 03048853 (ISSN), DOI 10.1016/j.jmmm.2021.168525
Примечания : Cited References: 37. - This work is supported by the Natural Science Foundation of China (no. 21871167) and the 1331 project of Shanxi Province and funded by RFBR according to the research project no. 19-52-80003
Аннотация: Understanding the magnetic correlations in amorphous alloys is the key to enhancing their high soft magnetic properties. The magnetization correlations were studied in amorphous alloy ribbons Fe-Cu-Nb-Si-B by analysis of approach to magnetic saturation within the random magnetic anisotropy model. An unusual sequence of power laws during approach of the magnetization to saturation was observed. This may indicate the transition from isotropic to anisotropic magnetic correlations as the applied field decreases.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sorokin P.B., Kvashnin A.G., Kvashnin D.G., Filicheva J.A., Avramov P. V., Chernozatonskii L.A., Fedorov A. S.
Заглавие : Theoretical Study of Atomic Structure and Elastic Properties of Branched Silicon Nanowires
Место публикации : ACS Nano. - 2010. - Vol. 4, Is. 5. - P.2784-2790. - MAY. - ISSN 1936-0851, DOI 10.1021/nn9018027
Примечания : Cited Reference Count: 28. - Гранты: P.B.S. acknowledges partial support by the National Science Foundation grant CMMI-0708096, NIRT. L.A.C. was supported by the Russian Academy of Sciences, program No. 21. P.V.A. and P.B.S. also acknowledge the collaborative RFBR-JSPS Grant No. 09-02-92107-Phi. All calculations have been performed on the Joint Supercomputer Center of the Russian Academy of Sciences. The geometry of all presented structures was visualized by ChemCraft software.Финансирующая организация: National Science Foundation [CMMI-0708096]; NIRT; Russian Academy of Sciences [21]; RFBR-JSPS [09-02-92107-Phi]
Предметные рубрики: ELECTRONIC-PROPERTIES
BUILDING-BLOCKS
NANOCRYSTALS
Ключевые слова (''Своб.индексиров.''): silicon nanowires--elastic properties--molecular mechanics--tersoff potential--elastic properties--molecular mechanics--silicon nanowires--tersoff potential--atomic structure--branch length--elastic properties--interatomic potential--silicon nanowires--tersoff potential--theoretical study--young modulus--carbon nanotubes--elasticity--molecular mechanics--nanowires--stiffness--crystal atomic structure--nanowire--silicon--article--chemical structure--chemistry--conformation--elasticity--mechanical stress--young modulus--elastic modulus--elasticity--models, molecular--molecular conformation--nanowires--silicon--stress, mechanical
Аннотация: The atomic structure and elastic properties of Y-shaped silicon nanowires of "fork"- and "bough"-types were theoretically studied, and effective Young moduli were calculated using Tersoff interatomic potential. The oscillation of fork Y-type branched nanowires with various branch lengths and diameters was studied. In the final stages of the bending, the formation of new bonds between different parts of the wires was observed. It was found that the stiffness of the nanowires is comparable with the stiffness of Y-shaped carbon nanotubes.
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