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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Falaleev O.V., Fokina V.D., Flerov I.N., Molokeev M.S., Pogoreltsev E.I., Bogdanov E.V., Laptash N.M.
Заглавие : Some experience of late entry into microMRT (problems and paradoxes)
Коллективы : "Nuclear Magnetic Resonance in Condensed Matter", International symposium and summer school, Санкт-Петербургский государственный университет
Место публикации : Nuclear magnetic resonance in condensed matter: Intern. symp. a. summer school in Saint Petersburg, 6th meet. "NMR in heterogeneous systems", 29 June - 3 July 2009 : book of abstracts. - С. 33. - ISBN 978-5-98340-223-2
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Iskhakov R. S., Vazhenina I. G., Nemtsev I. V., Li O. A.
Заглавие : Ferromagnetic resonance and magnetic anisotropy of 3d-metal wires with composition gradients
Колич.характеристики :5 с
Место публикации : Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 4. - P.531-535. - ISSN 10628738 (ISSN), DOI 10.1134/S1062873823706244. - ISSN 19349432 (eISSN)
Примечания : Cited References: 13
Аннотация: Results are presented from investigating the ferromagnetic resonance spectra of arrays of Co‒Ni and Co‒Fe‒Ni wires with different composition gradients, deposited into polycarbonate track-etched membranes. The effect interfaces and concentration gradients have on the effective fields of the investigated wires is examined. An anomalous angular dependence of the fields of ferromagnetic resonance is observed for the wire arrays at a pore density of ~18% in the membrane.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shapovalov V. V., Shapovalov V. A., Drokina T. V., Vorotynov A. M., Val'kov V. I.
Заглавие : Distribution of cobalt Co2+ ions in single crystals of spinel Li0.5Ga2.5O4
Колич.характеристики :6 с
Место публикации : Phys. Met. Metallogr. - 2024. - Vol. 125, Is. 1. - P.27-32. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X23602883. - ISSN 15556190 (eISSN)
Примечания : Cited References: 22
Аннотация: The distribution of Co2+ ions over sublattices and structurally nonequivalent positions in the unit cell of the crystal lattice of a single crystal of lithium gallium spinel Li0.5Ga2.5O4 is shown. This distribution determines the properties of both mono- and nanocrystalline substances. The distribution is obtained by a special technology and is manifested in the electron paramagnetic resonance (EPR) spectra. The distribution of Co2+ ions depends on the structural and magnetic nonequivalence. The structural and magnetic nonequivalence causes a multiminimum behavior of the crystal field potential in the unit cells of single crystals at the locations of Co2+ ions. The Co2+ ions are found in complexes with tetrahedral and octahedral oxygen ions. Three types of EPR spectra of Co2+ ions have been found and investigated. The Cotetr2+ spectrum is attributed to the Co2+ ion, which replaces the Ga3+ ion located in a tetrahedral oxygen environment. The spectrum of the Cooct2+ ion located in the crystal field with axial symmetry belongs to the Co2+ ion replacing the Li+ ion located in an octahedral oxygen environment. The spectrum of the Cooct2+ ion located in a low symmetry crystal field belongs to the Co2+ ion replacing the Ga3+ ion located in an octahedral oxygen environment. The nearest cationic environment of the ion creates rhombic distortions due to the different valence numbers of Li+ and Ga3+. The results of studying the angular dependences of the spectra show the presence of four and twelve magnetically nonequivalent positions in the unit cells.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Solovev P. N., Belyaev B. A., Boev N. M., Skomorokhov G. V., Izotov A. V.
Заглавие : Magnetic anisotropy and ferromagnetic resonance in inhomogeneous demagnetizing fields near edges of thin magnetic films
Колич.характеристики :12 с
Место публикации : J. Phys. Condens. Matter. - 2024. - Vol. 36, Is. 19. - Ст.195803. - ISSN 09538984 (ISSN), DOI 10.1088/1361-648X/ad258c. - ISSN 1361648X (eISSN)
Примечания : Cited References: 38
Аннотация: Using local ferromagnetic resonance spectroscopy, we have studied the magnetic properties near edges of thin tangentially magnetized permalloy films, in which a well-defined uniaxial magnetic anisotropy was induced perpendicular to one of the edges. In the experiment, two samples with thicknesses of 90 and 300 nm and with slightly different compositions were examined. To explain the magnetization dynamics near edges, we propose a simple yet effective model of a film in the form of a rectangular prism, which yields the modified Kittel formula for the resonance frequency. In this formula, the locally averaged distance-dependent demagnetizing field that emerges near the edges is included as an additional uniaxial anisotropy term. The measurements reveal that at a certain distance from the edge, the resulting (apparent) anisotropy, determined from the angular dependencies of the resonance field, almost vanishes. Moreover, its easy axis reorients to become parallel to the edge. The model predictions agree well with these results, proving that the main resonance mode behavior near the film edges can be accurately described by introducing additional effective uniaxial anisotropy, provided the measuring area is relatively large. However, for the thick (300 nm) sample, additional precession modes are also observed. These modes distort the angular dependence of the main mode, thus demonstrating the limitations of the model.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Яцык И. В., Еремина Р. М., Мошкина, Евгения Михайловна, Попов Д. В., Шестаков А. В.
Заглавие : Спин-волновой резонанс в монокристалле железо-галлиевого оксида
Коллективы : "Новое в магнетизме и магнитных материалах", международная конференция, Научный совет по физике конденсированных сред РАН, МИРЭА - Российский технологический университет, Московский государственный университет им. М.В. Ломоносова, Магнитное общество России
Место публикации : Новое в магнетизме и магнитных материалах: сборник трудов XXV международной конференции/ прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2024. - Секция 6 [Сборник 6]: Резонансные явления в магнетиках. - С. 17-20. - ISBN 978-5-4465-1869-2
Примечания : Библиогр.: 15
Аннотация: В спектрах электронного спинового резонанса для монокристалла Fe1.1Ga0.9O3 обнаруженo множество линий, которые можно отнести к проявлению спин-волнового резонанса. Для данного соединения из температурной зависимости намагниченности определена температура фазового перехода ферримагнетик-парамагнетик TC = 288 K и из температурной зависимости спектров электронного спинового резонанса определена температура Кюри – Вейсса (θCW = 289 K).
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Столяр, Сергей Викторович, Ли О. А., Баюков, Олег Артемьевич, Николаева Е. Д., Воротынов, Александр Михайлович, Исхаков, Рауф Садыкович, Шохрина А. О., Райхер Ю. Л.
Заглавие : Естественный ферромагнитный резонанс в порошках феррита кобальта на частоте 8,9 ГГц
Коллективы : "Новое в магнетизме и магнитных материалах", международная конференция, Научный совет по физике конденсированных сред РАН, МИРЭА - Российский технологический университет, Московский государственный университет им. М.В. Ломоносова, Магнитное общество России
Место публикации : Новое в магнетизме и магнитных материалах: сборник трудов XXV международной конференции/ прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2024. - Секция 6 [Сборник 6]: Резонансные явления в магнетиках. - С. 44-47. - ISBN 978-5-4465-1869-2
Примечания : Библиогр.: 3
Аннотация: В работе исследованы структура, магнитные свойства и спектры ферромагнитного резонанса частиц феррита кобальта, синтезированных химическим методом. Показана возможность резонансного нагрева порошка в поле магнитной анизотропии частиц, что может найти применение в медицине для магнитной гипертермии.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Li O. A., Vorotynov A. M., Velikanov D. A., Maksimov N. G., Iskhakov R. S., Ladygina V. P., Shokhrina A. O.
Заглавие : Studying the ferromagnetic resonance heating of an isotropic superparamagnet by the example of biogenic ferrihydrite nanoparticles
Колич.характеристики :4 с
Место публикации : Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 4. - P.536-539. - ISSN 10628738 (ISSN), DOI 10.1134/S106287382370627X. - ISSN 19349432 (eISSN)
Примечания : Cited References: 10
Аннотация: Ferrihydrite nanoparticles are synthesized and characterized. The dependences of heating of powders are studied upon pumping by a high-frequency electromagnetic field on a dc magnetic field. It is shown that the experimental dependence of the temperature of particles on a dc magnetic field is consistent with the theory of ferromagnetic resonance for an isotropic superparamagnet.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vazhenina I. G., Stolyar S. V., Komogortsev S. V., Li O. A., Iskhakov R. S., Velikanov D. A., Cheremiskina E. V., Nemtsev I. V.
Заглавие : Nanostructured coatings of 3d-metals produced by green chemistry methods: Analysis of inhomogeneities by static and dynamic magnetic methods
Колич.характеристики :8 с
Место публикации : Phys. Met. Metallogr. - 2024. - Vol. 125, Is. 4. - P.363-370. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X24600088. - ISSN 15556190 (eISSN)
Примечания : Cited References: 30. - The research was conducted as part of the scientific topic of the State Assignment of the Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences
Аннотация: The study investigates carbon-containing coatings of 3d-metals (Ni, Co, Fe) produced by chemical deposition method using arabinogalactan. The coatings were analyzed using X-ray diffraction, FMR, and M(H) magnetometry. Measurement of M(H) in plane and perpendicular to the plane of the magnetic coatings allowed determining the distribution of demagnetizing factor in the studied coatings. The obtained distributions of the demagnetizing factor were used to analyze the angular dependences of the ferromagnetic resonance field. The values of magnetization and perpendicular anisotropy field were estimated. The paper illustrates the effect of texture on the magnetic parameters.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Melnikov, Grigory Yu., Vazhenina I. G., Iskhakov R. S., Boev N. M., Komogortsev S. V., Svalov, Andrey V., Kurlyandskaya, Galina V.
Заглавие : Magnetic properties of FeNi/Cu-based lithographic rectangular multilayered elements for magnetoimpedance applications
Место публикации : Sensors. - 2023. - Vol. 23, Is. 13. - Ст.6165. - ISSN 14248220 (eISSN), DOI 10.3390/s23136165
Примечания : Cited References: 72. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/project/22-29-00980/ (accessed on 1 July 2023)Authors acknowledge the possibility to use the Krasnoyarsk Regional Center of Research Equipment of the Federal Research Center “Krasnoyarsk Science Center SB RAS” for ferromagnetic resonance studies. We thank A.A. Yuvchenko and V.N. Lepalovskij for special support. The authors wish to thank the anonymous referees for their comments and suggestions
Аннотация: The rectangular elements in magnetoimpedance (MI) configuration with a specific nanocomposite laminated structure based on FeNi and Cu layers were prepared by lift-off lithographic process. The properties of such elements are controlled by their shape, the anisotropy induced during the deposition, and by effects associated with the composite structure. The characterizations of static and dynamic properties, including MI measurements, show that these elements are promising for sensor applications. We have shown that competition between the shape anisotropy and the in-plane induced anisotropy of the element material is worth taking into account in order to understand the magnetic behavior of multilayered rectangular stripes. A possibility of the dynamic methods (ferromagnetic and spin-wave resonance) to describe laminated planar elements having a non-periodic modulation of both structure and magnetic parameters of a system is demonstrated. We show that the multilayered structure, which was originally designed to prevent the development of a “transcritical” state in magnetic layers and to reach the required thickness, also induces the effects that hinder the achievement of the goal, namely an increase in the perpendicular magnetic anisotropy energy.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Li O. A., Nikolaeva E. D., Vorotynov A. M., Velikanov D. A., Knyazev Yu. V., Bayukov O. A., Iskhakov R. S., P’yankov V. F., Volochaev M. N.
Заглавие : An effective method of magnetic hyperthermia based on the ferromagnetic resonance phenomenon
Место публикации : Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P.174-180. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X22601834. - ISSN 15556190 (eISSN)
Примечания : Cited References: 15. - This study was supported by grant no. 22-14-20020 from the Russian Science Foundation and the Krasnoyarsk Regional Fund for Support of Scientific and Technological Activities. The authors are grateful to the Krasnoyarsk Regional Center for Collective Use at Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, for providing their research facilities
Аннотация: Nickel and cobalt ferrite nanoparticles have been synthesized using the chemical precipitation method; the nanoparticle sizes were found to be 63 ± 22 and 26 ± 4 nm, respectively. The static hysteresis loops and Mossbauer spectra have been measured. It is shown that cobalt ferrite powders are magnetically harder than nickel ferrite powders. Ferromagnetic resonance (FMR) curves have been studied. It is found that the FMR absorption for cobalt ferrite is observed at room temperature and above. The time dependences of the nanoparticle warm-up under FMR conditions have been measured. The maximum temperature changes for nickel ferrite and cobalt ferrite particles are 8 and 11 K, respectively. Using the example of cobalt ferrite powder, the possibility of effectively heating of particles in the FMR mode in their own field without using a DC magnetic field source is shown. The observed effect can be used in magnetic hyperthermia.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Li O. A., Nikolaeva E. D., Boev N. M., Vorotynov A. M., Velikanov D. A., Iskhakov R. S., Pyankov V. F., Knyazev Yu. V., Bayukov O. A., Shokhrina A. O., Molokeev M. S., Vasiliev A. D.
Заглавие : Heating of magnetic powders in the ferromagnetic resonance mode at a frequency of 8.9 GHz
Колич.характеристики :8 с
Коллективы : Nanophysics and Nanoelectronics, International Symposium
Место публикации : Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P.963-970. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2023.06.56109.21H. - ISSN 10906460 (eISSN)
Примечания : Cited References: 25
Аннотация: Nickel ferrite nanoparticles 4 nm in size were synthesized by chemical deposition. Subsequent annealing at T=700°C for 5 h led to an increase in the particle size to 63 nm. The Mossbauer spectra and the frequency-field dependences of ferromagnetic resonance have been measured. It has been shown that freshly prepared powders are superparamagnetic at room temperature. The kinetic dependences of the heating of nanoparticles in the ferromagnetic resonance mode at a frequency of 8.9 GHz were measured. It was found that the maximum rate of temperature increase in this mode for a ferromagnetic powder is an order of magnitude greater than for the superparamagnetic state (1.2 and 0.13 K/s, respectively). The latter is determined by the saturation magnetization of the studied powders.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shapovalov V. V., Shapovalov V. A., Sluzhbin Yu. A., Drokina T. V., Vorotynov A. M., Valkov V. I.
Заглавие : Characteristics of nanocomplexes with iron Fe3+ in Glass Ionomer Cement powder by ESR method
Место публикации : Phys. Solid State. - 2023. - Vol. 65, Is. 2. - P.296-298. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2023.02.55415.489. - ISSN 10906460 (eISSN)
Примечания : Cited References: 13
Аннотация: The study is part of nanomedical biotechnology and is carried out by probing these systems using the Electronic Spin Resonance (ESR) method. The paper investigates Glass Ionomer Cement powder widely used in dental practice Glass Ionomer Cement C-Plus Triplekit-TM. To assess the quality of Glass Ionomer Cement and use ESR radiospectroscopy in the range from low (T=4.2 K) to room (T=300 K) temperatures. A new characteristic of compounds with nanocomplexes of magnetic iron ions Fe3+ is applied.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Morozov E. V., Sandzhieva D. A., Dedov A. G., Buznik V. M.
Заглавие : Use of magnetic resonance imaging in petroleum research: Potentialities and prospects (a Review)
Колич.характеристики :15 с
Место публикации : Pet. Chem. - 2023. - Vol. 63, Is. 1. - P.52-66. - ISSN 09655441 (ISSN), DOI 10.1134/S0965544123020196. - ISSN 15556239 (eISSN)
Примечания : Cited References: 76. - The study was supported by the Russian Science Foundation (project no. 22-13-00410, http://rscf.ru/project/22-13-00410/)
Аннотация: Potentialities of magnetic resonance imaging (MRI) in petroleum research are analyzed. Major attention is paid to technical features of the method as applied to oil extraction and preparation. Available published data are systematized. Four key directions of MRI, which undergo active development now, are distinguished: oil in a porous matrix; oil interfaces; destabilization of petroleum systems; transport of crude oils and petroleum systems. Key studies in this field are considered, essential points reflecting the MRI efficiency are presented, and the range of problems that can be solved using MRI, including prospects for further expansion of the application fields, is outlined. The possibilities of studying the morphological, structural, and dynamic aspects of the interaction of crude oils with the environment and the phase behavior of oils under the conditions of intense external actions are discussed. The review favors expansion of the experimental potential of specialists in the field of oil extraction, preparation, and refining, and also in the adjacent fields of physical and colloidal chemistry, chemistry of surface phenomena, and macromolecular chemistry.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasnov A. I., Pankin P. S., Buzin D. S., Romanenko G. A., Sutormin V. S., Zelenov F. V., Masyugin A. N., Volochaev M. N., Vetrov S. Ya., Timofeev I. V.
Заглавие : Voltage-tunable Q factor in a photonic crystal microcavity
Место публикации : Opt. Lett. - 2023. - Vol. 48, Is. 7. - P.1666-1669. - ISSN 01469592 (ISSN), DOI 10.1364/OL.479431. - ISSN 15394794 (eISSN)
Примечания : Cited References: 52. - The authors are grateful to Dmitrii N. Maksimov and Sergey A. Myslivets for fruitful discussions. The authors thank the Krasnoyarsk Regional Center of Research Equipment of FRC KSC SB RAS for providing the equipment. This study was supported by the Russian Science Foundation, project no. 22-22-00687
Аннотация: A photonic crystal microcavity with a tunable quality factor (Q factor) has been implemented on the basis of a bound state in the continuum using the advanced liquid crystal cell technology platform. It has been shown that the Q factor of the microcavity changes from 100 to 360 in the voltage range of 0.6 V.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pichkovskiy I. S., Zobov V. E.
Заглавие : Clustering into three groups on a quantum processor of five spins S = 1, controlled by pulses of resonant RF fields
Место публикации : Appl. Magn. Reson. - 2023. - Vol. 54, Is. 7. - P.661-677. - ISSN 09379347 (ISSN), DOI 10.1007/s00723-023-01544-9. - ISSN 16137507 (eISSN)
Примечания : Cited References: 44. - This work funded by the Theoretical Physics and Mathematics Advancement Foundation “BASIS” #20-1-5-41-1
Аннотация: We consider a quantum processor based on five qutrits represented by spins S = 1, which is driven by radio frequency (RF) pulses selective in transitions between adjacent levels. Numerical simulation of the implementation of the quantum-adiabatic clustering algorithm was performed on the example of partitioning a set of six points into three groups. We find the amplitudes and durations of rectangular RF pulses, as well as the durations of free evolution intervals in the control pulse sequence, which made it possible to engineer a time-dependent effective Hamiltonian in the discrete-time approximation. Also we studied the dependence of the implementation fidelity on the parameters. We took quadrupole nuclei as qutrits, but the results obtained will be useful for controlling quantum processors based on qutrits represented by other systems.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Tsikalov D. S., Polukhin D. S.
Заглавие : High-frequency susceptibility of the ferromagnetic resonance in thin films with random one- and two-dimensional inhomogeneities in the magnetic anisotropy
Коллективы : Eurasian Symposium “Trends in Magnetism”
Место публикации : J. Exp. Theor. Phys. - 2023. - Vol. 136, Is. 1. - P.39-45. - ISSN 10637761 (ISSN), DOI 10.1134/S1063776123010041. - ISSN 10906509 (eISSN)
Примечания : Cited References: 26. - This work was supported in part by the Russian Foundation for Basic Research, by the Government of the Krasnoyarsk region, and by the Krasnoyarsk Regional Science Foundation (project no. 20-42-240010)
Аннотация: The effect of random one- (1D) and two-dimensional (2D) inhomogeneities of the magnetic anisotropy on the shape and width of ferromagnetic resonance line in a thin film has been studied in the standard and new self-consistent approximations. It has been shown that resonance peaks in the case of 2D inhomogeneities are much narrower than those for 1D ones. Peaks are asymmetric in both the 1D and 2D cases, but asymmetry is larger in the latter case. As the correlation wavenumber of inhomogeneities kc increases, the width of a resonance line decreases and its amplitude increases. The amplitude of the FMR peak for 2D inhomogeneities increases much faster than that for 1D inhomogeneities. At the critical dimensionless parameter kcd/π ~ 1, where d is the thickness of the film, the width of the resonance line has an inflection point and the asymmetry of this line and the shift of the ferromagnetic resonance peak are maximal. It has been shown that the new self-consistent approximation reproduces the shape of the resonance line much better than the standard self-consistent approximation.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vazhenina I. G., Stolyar S. V., Tyumentsev A. V., Volochaev M. N., Iskhakov R. S., Komogortsev S. V., Pyankov V. F., Nikolaeva E. D.
Заглавие : Study of magnetic iron oxide nanoparticles coated with silicon oxide by ferromagnetic method
Колич.характеристики :5 с
Коллективы : Nanophysics and Nanoelectronics, International Symposium
Место публикации : Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P.884-888. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2023.06.56095.01H. - ISSN 10906460 (eISSN)
Примечания : Cited References: 20. - The study was supported by grant No. 22-14-20020 provided by the Russian Science Foundation, Krasnoyarsk Regional Science Foundation
Аннотация: agnetic nanoparticles of magnetite with a size of ~8 nm synthesized with a different type of coating were studied by ferromagnetic resonance in the temperature range from 7 to 300 K. The features of the experimental temperature dependences of the parameters of the ferromagnetic resonance curve (the magnitude of the resonant field, line width and intensity) and their approximation allowed us to estimate the values of characteristic temperatures. Firstly, the value of the Vervey temperature and the dependence of its value on the type of coating were determined. Secondly, the temperature of transition of nanoparticles to the superparamagnetic state (blocking temperature) and the temperature range within which the magnetic structure of the outer shell of the magnetic nanoparticle is in the spin glass state are established.
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18.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Slyusarenko N. V., Krylov A. S., Timofeeva M. V., Shipilovskikh S. A., Slyusareva E. A.
Заглавие : Luminescent studies of flexible [DUT-8 (Zn)] metal-organic frameworks
Колич.характеристики :6 с
Коллективы : International Conference on Pulsed Lasers and Laser Applications
Место публикации : Proc. SPIE. - 2023. - Vol. 12920: XVI International Conference on Pulsed Lasers and Laser Applications (10-15 September 2023, Tomsk, Russian Federation). - Ст.1292014. - , DOI 10.1117/12.3005774
Примечания : Cited References: 10. - The reported study was funded by RFBR and DFG, project 21-52-12018
Аннотация: An approach to the study of the porous structure of metal-organic frameworks (MOF) using guest luminescent molecules with specially selected spectral characteristics as acceptors of electronic excitation energy was suggested. If such molecules are adsorbed in MOF pores with sizes comparable to the Förster radius, Förster resonance energy transfer (FRET) from photoexcited linkers occurs. In this case quenching of luminescence of the linker can serve as analytical signals indicating open pore structure of the MOF. The developed approach was demonstrated by the example of DUT-8(Zn) MOF and Coumarin 1 as guest molecules by time-resolved luminescence methods.
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19.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Vazhenina I. G., Iskhakov R. S., Nemtsev I. V.
Заглавие : Ferromagnetic resonance and magnetic anisotropy of 3-d metal rods with gradients of composition
Коллективы : International Baltic Conference on Magnetism, Балтийский федеральный университет им. И. Канта
Место публикации : V International Baltic Conference on Magnetism. IBCM: Book of abstracts. - 2023. - P.135
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20.

Вид документа : Однотомное издание
Шифр издания : Описание изобретения к патенту 2797721!-832788964
Автор(ы) : Бурмитских, Антон Владимирович, Подшивалов, Иван Валерьевич, Боев, Никита Михайлович, Горчаковский, Александр Антонович, Клешнина, Софья Андреевна, Крёков, Сергей Дмитриевич, Соловьев, Платон Николаевич, Изотов, Андрей Викторович, Негодеева, Ирина Александровна, Скоморохов, Георгий Витальевич
Заглавие : Измерительная ячейка широкополосного спектрометра ферромагнитного резонанса .-
Коллективы : Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук", Федеральная служба по интеллектуальной собственности (Роспатент), Федеральный институт промышленной собственности
Место публикации : Изобретения. Полезные модели: офиц. бюл. Фед. службы по интеллектуал. собственности (Роспатент). - 2023. - № 16
Аннотация: Изобретение относится к измерительной технике и предназначено для неразрушающего контроля качества магнитных пленок и изученияих высокочастотных характеристик путемрегистрации спектров ферромагнитного резонанса тонкопленочных образцов в широкой полосе частот. Технический результат - повышение верхней рабочей частоты ячейки и упрощение процедуры смены исследуемого образца. Измерительная ячейка широкополосного спектрометра ферромагнитного резонанса содержит короткозамкнутую несимметричную полосковую линию, размещенную в электромагнитном экране, и СВЧ-разъем, расположенный перпендикулярно полосковой линии. Электромагнитным экраном является замкнутый металлический корпус ячейки, с верхней стороны которого расположен СВЧразъем, а в нижней части боковой стороны имеется отверстие для установки исследуемого образца тонкой магнитной пленки в зазор между отрезком несимметричной полосковой линии и экраном, причем размеры отверстия больше габаритных размеров исследуемого образца. 5 ил.
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