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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Семенов, Сергей Васильевич, Комогорцев, Сергей Викторович, Балаев, Александр Дмитриевич, Загорский Д. Л.
Заглавие : Магнитодипольное взаимодействие в двумерном ансамбле нанонитей железа
Коллективы : Байкальская международная конференция "Магнитные материалы. Новые технологии", "Магнитные материалы. Новые технологии", Байкальская международная конференция, "Magnetic materials. New tecnologies", Baikal International Conference, Иркутский государственный университет
Место публикации : Магнитные материалы. Новые технологии: тез. докл. IX Байкал. междунар. конф. BICMM-2023/ чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 30. - ISBN 978-5-962402178-0, DOI 10.26516/978-5-9624-2178-0.2023.1-207
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zlotnikov A. O., Aksenov S. V., Shustin M. S.
Заглавие : Spin-orbit coupling-induced effective interactions in superconducting nanowires in the strong correlation regime
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-02-00348, 20-3270059]; Krasnoyarsk Territorial Foundation [19-42-240011, 18-42240014]; Government of the Krasnoyarsk Territory; Presidium of the Russian Academy of SciencesRussian Academy of Sciences [I.12]; Council for Grants of the President of the Russian Federation [MK-1641.2020.2]
Место публикации : Phys. Solid State. - 2020. - Vol. 62, Is. 9. - P.1612-1618. - ISSN 1063-7834, DOI 10.1134/S1063783420090371. - ISSN 1090-6460(eISSN)
Примечания : Cited References: 24. - This study was supported by the Russian Foundation for Basic Research, projects nos. 19-02-00348 and 20-3270059, the Government of the Krasnoyarsk Territory and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, projects nos. 19-42-240011 and 18-42240014 "Single-Orbit Effective Model of an Ensemble of Spin-Polaron Quasiparticles in the Problem of Describing the Intermediate State and Pseudogap Behavior of Cuprate Superconductors,"and the Presidium of the Russian Academy of Sciences, program I.12 "Fundamental Problems of High-Temperature Superconductivity." S.V.A. thanks the Council for Grants of the President of the Russian Federation for Governmental Support of Young Russian Scientists, project no. MK-1641.2020.2
Аннотация: In the second order of the operator form of the perturbation theory, the effective interactions in a superconducting nanowire have been obtained at the strong electron correlations, when the spin-orbit coupling parameter is comparable with the hopping integral. Using the exact diagonalization technique, in short nanowires with the open boundary conditions at the strong Coulomb repulsion, the excitations corresponding to the Majorana edge states with the energy below the value of a bulk superconducting gap have been demonstrated.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Samardak A. S., Ognev A. V., Samardak A. Y., Stebliy E. V., Modin E. B., Chebotkevich L. A., Komogortsev S. V., Stancu A., Panahi-Danaei E., Fardi-Ilkhichy A., Nasirpouri F.
Заглавие : Variation of magnetic anisotropy and temperature-dependent FORC probing of compositionally tuned Co-Ni alloy nanowires
Место публикации : J. Alloys Compd. - 2018. - Vol. 732. - P.683-693. - ISSN 09258388 (ISSN), DOI 10.1016/j.jallcom.2017.10.258
Примечания : Cited References: 60. - This work was supported by the Russian Foundation for Basic Research (grant 16-02-01015 А), by the Russian Ministry of Education and Science under the state task (3.5178.2017/8.9), by Act 211 of the Government of the Russian Federation (contract № 02.A03.21.0011) and by the Brain Pool Program (172S-2-3-1928) through the Korean Federation of Science and Technology Societies (KOFST) funded by the Ministry of Science, ICT and Future Planning. Financial support from Iranian Nanotechnology Initiative council is also acknowledged.
Ключевые слова (''Своб.индексиров.''): coercive force--magnetic anisotropy--magnetic hysteresis--binary alloy nanowires--alumina template--electrodeposition--first order reversal curves--stochastic magnetic domain--random anisotropy model
Аннотация: The magnetic microstructure of Co-Ni binary alloy nanowires electrodeposited with controlled composition into nanoporous aluminum oxide templates can be represented as an ensemble of stochastic magnetic domains, whose size is determined by the magnetic correlation length. Using a method based on the approaching of magnetization to saturation, we defined the dimension of regions with magnetic orientation coherency as the stochastic domain size. Based on the experimental measurements of magnetization curves near saturation and first order reversal curves (FORC), we described a relationship between the macroscopic and microscopic parameters of the nanowires depending on the crystal structure observed by high-resolution transmission electron microscopy in terms of the random anisotropy model. The alloy composition strongly determines the crystal structure, in particular, the grain size and hcp/fcc phase distribution, and influences the effective magnetic anisotropy energy providing the direction of easy magnetization in the nanowire arrays. The characterization of Co-Ni arrays by FORC method at room and low temperatures revealed the transformation of magnetic behavior and certain contributions to the energy of the effective magnetic anisotropy.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Val'kov V. V., Aksenov S. V., Shustin M. S.
Заглавие : Majorana polarization and caloric anomalies in strongly correlated superconducting nanowires
Коллективы : Российская академия наук, Уральское отделение РАН, Институт физики металлов им. М. Н. Михеева Уральского отделения РАН, Уральский федеральный университет им. первого Президента России Б.Н. Ельцина, Российский фонд фундаментальных исследований, Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : Euro-asian symposium "Trends in magnetism" (EASTMAG-2019): Book of abstracts/ чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст.I.P4. - P.142-143. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 19. - This study was funded by the Russian Foundation for Basic Research (Projects Nos. 19-02-00348, 18-32-00443). M.S.S. is grateful for the support of the Grant of the President of the Russian Federation (project SP-978.2019.5)
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Val'kov V. V., Mitskan V. A., Shustin M. S.
Заглавие : Ground-State Fermion Parity and Caloric Properties of a Superconducting Nanowire
Место публикации : J. Exp. Theor. Phys. - 2019. - Vol. 129, Is. 3. - P.426-437. - ISSN 10637761 (ISSN), DOI 10.1134/S1063776119080144
Примечания : Cited References: 74. - This work was supported by the Russian Foundation for Basic Research (project nos. 16-02-00073, 18-32-00443, 18-42-243017, 18-42-243018), the Government of the Krasnoyarsk Kray, the Krasnoyarsk Kray Science Foundation within the scientific projects “Contact Phenomena and Magnetic Disorder in the Formation and Detection of Topologically Protected Edge States in Semiconductor Nanostructures” (project no. 18-42-243018), “Manifestation of Coulomb Interactions and Bounded-Geometry Effects in the Properties of Topological Edge States of Nanostructures with Spin–Orbit Interactions” (project no. 18-42-243017). One of us (Sh. M. S.) thanks the Council for Grants of the Russian President (project nos. MK-3594.2018.2 and MK-3722.2018.2).
Аннотация: Abstract: The ground-state structure and fermion parity have been determined for a semiconductor nano-wire with a strong Rashba spin–orbit interaction and proximity-induced superconductivity placed in an external magnetic field under periodic boundary conditions. Allowance for the open boundaries is shown to cause the topologically nontrivial parameter region to be partitioned into a set of subregions with a different ground-state fermionic parity. This peculiarity is related to the emergence of edge modes with nonmonotonically changing excitation energies in the system as its parameters change. At the quantum transition point, at which the ground-state fermionic parity changes, the edge-mode energy is zero. The magneto- and electrocaloric effects are shown to be effective characteristics that allow the series of quantum transitions in an open nanowire to be identified experimentally. These effects at low temperatures exhibit an anomalous behavior in the parameter region for which topologically stable Majorana modes are realized in long nanowires. © 2019, Pleiades Publishing, Inc.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Sorokin P.B., Kvashnin D.G., Kvashnin A.G.
Заглавие : Theoretical study of the elastic properties of branched silicon nanowires
Коллективы : "Fullerenes and Atomic Clusters", Biennial International Workshop
Место публикации : 9th Biennial International Workshop "Fullerenes and Atomic Clusters" (IWFAC 2009): July 6-10, 2009, St Petersburg, Russia : abstracts. - 2009. - Ст.P4.6. - С. 101
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sorokin P.B., Kvashnin D.G., Kvashnin A.G., Avramov P. V., Chernozatonskii L.A.
Заглавие : Theoretical study of elastic properties of SiC nanowires of different shapes
Место публикации : J. Nanosci. Nanotechnol. - 2010. - Vol. 10, Is. 8. - P.4992-4997. - ISSN 1533-4880, DOI 10.1166/jnn.2010.2424. - ISSN 1533-4899
Примечания : Cited Reference Count: 49. - Гранты: This work was partially supported by JSPS-RFBR collaborative grant 09-02-92107. The electronic structure calculations have been performed on the Joint Supercomputer Centre of the Russian Academy of Sciences. One of the authors (Pavel V. Avramov) acknowledges the encouragement of Professor K. Morokuma, research leader of Fukui Institute, Kyoto University and Dr. Alister Page for kind help and support. The geometry of all structures was visualized by ChemCraft software.SUP53/SUPФинансирующая организация: JSPS-RFBR [09-02-92107]; Fukui Institute, Kyoto University
Предметные рубрики: INITIO MOLECULAR-DYNAMICS
SILICON-CARBIDE
THERMAL-STABILITY
CARBON NANOTUBES
NANORODS
GROWTH
SURFACES
NANOCRYSTALS
POTENTIALS
CONSTANTS
Ключевые слова (''Своб.индексиров.''): silicon carbide--nanowires--elastic properties--dft--molecular mechanics--dft--elastic properties--molecular mechanics--nanowires--silicon carbide--atomic structure--cubic phasis--dft--effective size--elastic properties--sic nanowire--silicon carbide nanowires--theoretical study--wire geometries--young's modulus--crystal atomic structure--density functional theory--elastic moduli--elasticity--molecular mechanics--nanowires--wire--silicon carbide
Аннотация: The atomic structure and elastic properties of silicon carbide nanowires of different shapes and effective sizes were studied using density functional theory and classical molecular mechanics. Upon surface relaxation, surface reconstruction led to the splitting of the wire geometry, forming both hexagonal (surface) and cubic phases (bulk). The behavior of the pristine SiC wires under compression and stretching was studied and Young's moduli were obtained. For Y-shaped SiC nanowires the effective Young's moduli and behavior in inelastic regime were elucidated.
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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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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Sorokin P. B., Kvashnin D. G., Avramov P. V., Filicheva J. A., Chernozatonskii L. A.
Заглавие : The theoretical study of elastic properties of silicon nanowires
Коллективы : "Trends in Nanomechanics and Nanoengineering", workshop, Сибирский федеральный университет, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : Workshop "Trends in Nanomechanics and Nanoengineering": book of abstracts/ предс. сем. K. S. Aleksandrov ; зам. предс. сем.: G. S. Patrin, S. G. Ovchinnikov ; чл. лок. ком.: N. N. Kosyrev, A. S. Fedorov [et al]. - 2009. - P.17
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Komogortsev S. V., Chekanova L. A., Balaev A. D., Yuzova V. A., Semenova O. V.
Заглавие : The magnetic structure of ferromagnetic filaments of a CoNi(P) alloy in a porous silicon matrix
Место публикации : Tech. Phys. Lett.: AMER INST PHYSICS, 2003. - Vol. 29, Is. 4. - P263-266. - ISSN 1063-7850, DOI 10.1134/1.1573285
Примечания : Cited References: 12
Предметные рубрики: RANDOM ANISOTROPY
NI NANOWIRES
NANOCRYSTALLINE
FILMS
CO
FE
Аннотация: The magnetic and resonance properties of CoNi(P) alloys, synthesized by chemical deposition as films on single crystal silicon substrates and as filaments in linear pores of porous silicon substrates, were studied by magnetization and ferromagnetic resonance measurements. It is established that CoNi(P) alloys of the same composition but different morphologies occur in states characterized by different degrees of nonequilibrium, which is manifested by different modes of the magnetization approach to saturation. (C) 2003 MAIK "Nauka / Interperiodica".
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