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

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и брошюр библиотеки ИФ СО РАН (45)

Каталог журналов библиотеки ИФ СО РАН (14)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: <.>DP=202403$<.>

Общее количество найденных документов : 33
Показаны документы с 1 по 20

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Govorun I. V., Belyaev B. A., Zav'yalov Ya. B., Shumilov T. Y., Afonin A. O., Ugryumov A. V., Galeev R. G.
Заглавие : A 10 GHz monolithic filter based on stripline resonators with a split conductor
Колич.характеристики :6 с
Место публикации : Dokl. Phys. - 2023. - Vol. 68, Is. 12. - P.434-439. - ISSN 10283358 (ISSN), DOI 10.1134/S1028335823120030. - ISSN 15626903 (eISSN)
Примечания : Cited References: 18. - This work was carried out within the framework of Agreement no. 470 of August 30, 2022, between the Institute of Physics, Siberian Branch, Russian Academy of Sciences; the Regional Science Foundation; and JSC NPP Radiosvyaz, for a competition of scientific, technical, and innovative projects in the interests of the first climate Scientific and Educational Center "Yenisei Siberia"
Аннотация: The monolithic design of a compact bandpass filter X-band is made on the technology of multilayered printed circuit boards. Quarter-wave stripline resonators of the filter have two conductors divided by a layer of prepreg having low parameters that bond together the design. This eliminates the influence of the prepreg on the characteristics of the devices, ensuring good repeatability of filters in mass production. To increase the high-frequency stopband of the filter, one of the conductors of each resonator is cut in half by a transverse slit. The constructive sizes of the device were obtained by parametric synthesis using the electrodynamic analysis of its 3D model. The experimental data of the five-order filter are in good agreement with the electromagnetic simulation of filter of the 3D model. The experimental device has a central frequency of the passband of 10 GHz and a fractional bandwidth of 5.7%, and its dimensions and weight are 18.0 × 5.4 × 2.1 mm3 and 0.5 g. The important advantage of the developed design is the possibility of its installation on the board using the surface mounting method.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dymova M. A., Malysheva D. O., Popova V. K., Dmitrienko E. V., Endutkin A. V., Drokov D. V., Mukhanov V. S., Byvakina A. A., Kochneva G. V., Artyushenko P. V., Shchugoreva I. A., Rogova A. V., Tomilin F. N., Kichkailo A. S., Richter V. A., Kuligina E. V.
Заглавие : Characterizing aptamer interaction with the oncolytic virus VV-GMCSF-Lact
Колич.характеристики :14 с
Место публикации : Molecules. - 2024. - Vol. 29, Is. 4. - Ст.848. - ISSN 14203049 (eISSN), DOI 10.3390/molecules29040848
Примечания : Cited References: 46. - This study was supported by the Russian Science Foundation grant No. 22-64-00041, available online: https://rscf.ru/en/project/22-64-00041/ (accessed on 6 February 2024). This work was supported by the Russian state-funded project for ICBFM SB RAS (grant number 121030200173-6)
Аннотация: Aptamers are currently being investigated for their potential to improve virotherapy. They offer several advantages, including the ability to prevent the aggregation of viral particles, enhance target specificity, and protect against the neutralizing effects of antibodies. The purpose of this study was to comprehensively investigate an aptamer capable of enhancing virotherapy. This involved characterizing the previously selected aptamer for vaccinia virus (VACV), evaluating the aggregation and molecular interaction of the optimized aptamers with the recombinant oncolytic virus VV-GMCSF-Lact, and estimating their immunoshielding properties in the presence of human blood serum. We chose one optimized aptamer, NV14t_56, with the highest affinity to the virus from the pool of several truncated aptamers and built its 3D model. The NV14t_56 remained stable in human blood serum for 1 h and bound to VV-GMCSF-Lact in the micromolar range (Kd ≈ 0.35 μM). Based on dynamic light scattering data, it has been demonstrated that aptamers surround viral particles and inhibit aggregate formation. In the presence of serum, the hydrodynamic diameter (by intensity) of the aptamer–virus complex did not change. Microscale thermophoresis (MST) experiments showed that NV14t_56 binds with virus (EC50 = 1.487 × 109 PFU/mL). The analysis of the amplitudes of MST curves reveals that the components of the serum bind to the aptamer–virus complex without disrupting it. In vitro experiments demonstrated the efficacy of VV-GMCSF-Lact in conjunction with the aptamer when exposed to human blood serum in the absence of neutralizing antibodies (Nabs). Thus, NV14t_56 has the ability to inhibit virus aggregation, allowing VV-GMCSF-Lact to maintain its effectiveness throughout the storage period and subsequent use. When employing aptamers as protective agents for oncolytic viruses, the presence of neutralizing antibodies should be taken into account.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T., Kiselev E., Nemtsev I. V., Lukyanenko A. V., Sukovatyi A., Kuzmin A., Ryltseva G., Shishatskaya E.
Заглавие : Corrigendum to "Properties of degradable polyhydroxyalkanoates with different monomer compositions" International Journal of Biological Macromolecules; Volume 182, Pages 98–114
Колич.характеристики :3 с
Место публикации : Int. J. Biol. Macromol. - 2024. - Vol. 263, Pt. 1. - Ст.130252. - ISSN 01418130 (ISSN), DOI 10.1016/j.ijbiomac.2024.130252. - ISSN 18790003 (eISSN)
Примечания : Cited References: 1
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gavrichkov V. A.
Заглавие : Doped Mott-Hubbard materials with a low quasiparticle transparency
Колич.характеристики :8 с
Место публикации : Phys. Rev. B. - 2024. - Vol. 109, Is. 12. - Ст.125139. - ISSN 24699950 (ISSN), DOI 10.1103/PhysRevB.109.125139. - ISSN 24699969 (eISSN)
Примечания : Cited References: 48. - This work has been supported by the grant of the Russian Science Foundation, RSF 22-22-00298
Аннотация: Based on the Wilson's criterion metal/insulator, extended to materials with strong electronic correlations, we have identified a specific class of the materials, which is not associated with their usual classification into Mott-Hubbard and charge transfer dielectrics. The local symmetry of these materials leads to the disappearance of quasiparticle states (so-called first removal or first extra states) in the Hubbard gap. It is especially unusual for doped materials, in which quasiparticles, being charge carriers, can disappear or appear under external factors without the Mott transition being achieved. In this work, we introduce the so-called “quasiparticle transparency”, and provide specific experiments to identify materials with the low quasiparticle transparency. A number of examples of such materials with a spin crossover under high pressure, showing the Jahn-Teller nature, are considered.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yang Ch., Zheng D., Zou X., Dai X., Tang B., Molokeev M. S., Zhang X., Zhang H., Liu Y., Lei B.
Заглавие : Highly-efficiency far-red emission in Cr3+ activated Ca1.8Mg1.2Al2Ge3O12 toward plant precise lighting
Колич.характеристики :9 с
Место публикации : Adv. Opt. Mater. - 2024. - Ст.2303235. - Article in press. - ISSN 21951071 (eISSN), DOI 10.1002/adom.202303235
Примечания : Cited References: 48. - The work was supported by the National Natural Science Foundations of China (No. 12274144), the Guangdong Provincial Special Fund for Modern Agriculture Industry Technology Innovation Teams (No. 2023KJ122), the Key Realm R&D Program of Guangdong Province (No. 2021B0707010003), the Guangdong Provincial Science and Technology Project (No. 2022A1515010229), and the Project of GDUPS (2018) for Prof. Bingfu LEI
Аннотация: Far-red (FR) region (beyond 700 nm) lighting sources possess special potential for plant lighting. However, it remains a challenge to obtain high-performance Cr3+-doped FR phosphors. This study developed a FR phosphor, Ca1.8Mg1.2Al2Ge3O12:Cr3+ (CMAGG: Cr3+), using the cation substitution strategy. Under 438 nm blue light excitation, the phosphors display FR emission centered at 720 nm with a full width at half maximum (FWHM) of 91 nm. Benefit from the favorable match with the FR phytochrome (Pfr), the phosphor is combined with InGaN blue light chips to create a FR phosphor-converted light-emitting diode (pc-LED), which is used in Italian lettuce growth experiments and it results shown in a 15% increase in fresh weight and a 6.5% increase in dry weight. Notably, supplemental FR light modulated its growth morphology. The results of this study will be useful for further research on novel Cr3+-doped FR phosphors to meet the precise spectral requirements for plant growth.
Смотреть статью,
Scopus,
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bukhanov E. R., Shikhov V. N., Velichko V. V., Lipshin A. G., Surin N. A.
Заглавие : Influence of growth environment on structural and optical characteristics of higher plants
Колич.характеристики :5 с
Коллективы : International Advances in Applied Physics and Materials Science Congress and Exhibition
Место публикации : AIP Conf. Proc. - 2024. - Vol. 2924: Proceedings of the 3rd International Advances in Applied Physics and Materials Science Congress & Exhibition, Is. 1. - Ст.040003. - ISSN 0094243X (ISSN), DOI 10.1063/5.0181655. - ISSN 15517616 (eISSN). - ISSN 978-073544852-0 (ISBN)
Примечания : Cited References: 26
Аннотация: Two barley samples were taken for the study – one grown in the field and the other in a special chamber under intensive light. Chloroplasts structure was obtained during electron microscopy process. The results showed that the maximum quantum yield of photosystem II in both samples was in the range of values typical for normal physiological state of plants. At the same time, electron transport speed comparison shows that electrons are transferred 1.7 times faster in the vegetation chamber compared to field environment. Such difference is confirmed by the results of microscopy performed with flag leaves tissue samples of barley grown under intensive light in a chamber and in the field. A grana structure significantly denser and better organized was observed in chloroplasts of barley grown in chamber. This study shows a clear connection between the environment, the ordering of thylakoid structures and fluorescent indicators of photosynthesis.
Смотреть статью,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fedorov A. S., Visotin M. A., Lukyanenko A. V., Gerasimov V. S., Aleksandrovsky A. S.
Заглавие : Intense charge transfer plasmons in golden nanoparticle dimers connected by conductive molecular linkers
Колич.характеристики :7 с
Место публикации : J. Chem. Phys. - 2024. - Vol. 160, Is. 8. - Ст.084110. - ISSN 00219606 (ISSN), DOI 10.1063/5.0183334. - ISSN 10897690 (eISSN)
Примечания : Cited References: 52. - This study was supported by the Russian Science Foundation, Agreement No. 23-12-20007, and the Government of the Krasnoyarsk Territory and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, Agreement No. 256
Аннотация: Golden nanoparticle dimers connected by conjugated molecular linkers 1,2-bis(2-pyridyl)ethylene are produced. The formation of stable dimers with 22 nm diameter nanoparticles is confirmed by transmission electron microphotography. The possibility of charge transfer through the linkers between the particles in the dimers is shown by the density functional theory calculations. In addition to localized plasmon resonance of solitary nanoparticles with a wavelength of 530 nm, the optical spectra exhibit a new intense absorption peak in the near-infrared range with a wavelength of ∼780 nm. The emergent absorption peak is attributed to the charge-transfer plasmon (CTP) mode; the spectra simulated within the CTP developed model agree with the experimental ones. This resonant absorption may be of interest to biomedical applications due to its position in the so-called transmission window of biological tissues. The in vitro heating of CTP dimer solution by a laser diode with a wavelength of 792 nm proved the efficiency of CTP dimers for achieving a temperature increase of ΔT = 6 °C, which is sufficient for hyperthermia treatment of malignant tumors. This indicates the possibility of using hyperthermia to treat malignant tumors using the material we synthesized.
Смотреть статью
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gokhfeld D. M.
Заглавие : Magnetic flux trapping in porous high-Tc superconductors
Колич.характеристики :4 с
Место публикации : Phys. C: Supercond. Appl. - 2024. - Vol. 619. - Ст.1354486. - ISSN 09214534 (ISSN), DOI 10.1016/j.physc.2024.1354486. - ISSN 18732143 (eISSN)
Примечания : Cited References: 39
Аннотация: Porosity affects the properties of high-Tc superconductors and can improve their performance by enhancing oxygenation, cryocooling, etc. Among other factors, the presence of pores plays a significant role in the process of magnetic flux trapping. Relationships with the porosity manifest in the irreversibility field, the full penetration field, and the remnant magnetization of the samples. To account for the effect of porosity on the trapped magnetic flux into type-II superconductors, a simple toy model is suggested. Generally, as the porosity increases, the trapped flux and related parameters tend to diminish. However, in the case of microscopic samples, porosity can enhance magnetic flux trapping.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karacharov A. A., Likhatski M. N., Borisov R. V., Tomashevich E. V., Vorobyev S. A., Zharkov S. M.
Заглавие : Modification of synthetic valleriite surface with gold nanoparticles: The roles of specific adsorption and zeta potential
Колич.характеристики :12 с
Место публикации : Colloid J. - 2024. - Vol. 86, Is. 1. - P.40-51. - ISSN 1061933X (ISSN), DOI 10.1134/S1061933X23601075. - ISSN 16083067 (eISSN)
Примечания : Cited References: 69. - This work was supported by the Russian Science Foundation project no. 22-13-00321
Аннотация: Layered two-dimensional materials, whose properties dramatically differ from their bulk precursors, are of great theoretical and applied importance. Recently, a layered 2D material, an analog of a natural mineral, valleriite, in which quasi-monoatomic Cu−Fe−S sheets alternate with brucite-like ones, has been prepared using a simple hydrothermal synthesis procedure. The features of the electronic structure of these materials make it possible to propose them as new materials for a wide field of applications such as (electro)photocatalysis, high-capacity batteries, etc. In this work, nanocomposite materials have been prepared via immobilization of gold nanoparticles (AuNPs) from citrate hydrosols on the surface of the synthesized valleriites having different compositions of hydroxide layers, which control the surface charge density. According to X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), energy-dispersive X-ray microanalysis (EDX), and selected area electron diffraction (SAED) data, AuNPs are immobilized on valleriite nanoflakes, which have lateral sizes of 150–200 nm and thicknesses of several tens of nanometers, as isolated metal nanoparticles with an average diameter of 11 nm. A small amount of aggregates indicates a high affinity of AuNPs for the valleriite surface. The amounts of immobilized gold are the same on all studied valleriites (~0.2%). This finding may be related to the simultaneous sorption of free citrate ions from the AuNP hydrosols, with these ions, according to zeta potential measurements, charging the surfaces of all studied valleriite samples to nearly the same negative value of –40 mV. According to the XPS data, the AuNPs immobilization markedly decreases the magnesium and oxygen contents on the surfaces of the synthesized valleriites due to the partial degradation/dissolution of the brucite layer. In addition, the amount of Fe3+ ions bound to OH groups decreases with a simultaneous increase in the fraction of Fe3+–O species. The TEM data have confirmed the preservation of the layered structure of valleriites after the immobilization of AuNPs.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Malakhovskii A. V., Sokolov V. V., Karimov D.N.
Заглавие : Nature of magnetic circular dichroism and absorption spectra of f-f transitions in Na0.4Ho0.6F2.2 single crystal
Колич.характеристики :5 с
Место публикации : Chem. Phys. - 2024. - Vol. 581. - Ст.112257. - ISSN 03010104 (ISSN), DOI 10.1016/j.chemphys.2024.112257. - ISSN 18734421 (eISSN)
Примечания : Cited References: 25
Аннотация: We present first study of magnetic circular dichroism (MCD) spectra of Ho3+ ion in C4v local symmetry, which it has in fluorite Na0.4Ho0.6F2.2. Optical absorption and MCD spectra were studied in this single crystal in the region of 5I8 5F3, 5F2, 3K8 and 5G5 transitions in the temperature range 3.6–––90 K. It was revealed, that number of transitions observed in the MCD and absorption spectra coincides with the number of transitions only from the doublet E state to singlet excited states. The E-E type transitions are not active in MCD, but they are not observed in the absorption spectra either. Paramagnetic magneto-optical activities (MOA) of the absorption bands and their temperature dependences were measured and interpreted with the help of the theory based on the nature of f-f transitions allowance. The MCD spectra were also analyzed in approximation of the J,±MJ wave functions of the free atom. It was shown in particular, that the lowest initial state of the transitions observed at T ˃ 10 K had MJ = 7, but this is not the lowest state of the holmium ion in the crystal. A little lower there is a quasi-doublet with MJ = 8 and, accordingly, with a higher magneto-optical activity of transitions from it. However, the intensity of transitions from this state is low.
Смотреть статью,
Scopus,
Читать в сети ИФ
Найти похожие

11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Muzalevskiy K. V., Walke J. P., Brakhasi F., Ye N., Wu X., Shen X.
Заглавие : On the use of dual-polarized multi-angular observations of P-band brightness temperature for soil moisture profile retrieval in thawed mineral soil
Колич.характеристики :24 с
Место публикации : Int. J. Remote Sens. - 2024. - Vol. 45, Is. 5. - P.1498-1521. - ISSN 01431161 (ISSN), DOI 10.1080/01431161.2024.2313993. - ISSN 13665901 (eISSN)
Примечания : Cited References: 37. - The work was supported by the State assignment of Kirensky Institute of Physics [FWES-2021-0034]; Australian Research Council funding [DP170102373 and LE150100047]. The work was carried out within the state assignment of Kirensky Institute of Physics and the Australian Research Council funding (DP170102373 and LE150100047) that was used to collect the P-band data
Аннотация: This article investigated the possibility of remotely sensing the soil moisture profile in thawed soil from multi-angular dual-polarized brightness temperature (TB) observations at P-band frequencies of 750 MHz and 409 MHz using a modified Burke model. Moreover, it was found that an excellent agreement (coefficient of determination R2 = 0.999 and root-mean-square error (RMSE) no more than RMSE = 0.6 K) could be achieved between the Njoku coherent brightness temperature model and the modified Burke model by introducing a reflectivity from the air-soil interface that takes into account the phases of the multiple re-reflected waves in the underlying layers. Based on the modified Burke model, the depths from which apparent moisture and temperature could be retrieved in a dielectrically-inhomogeneous, non-isothermal soil were investigated, being approximately ten times less than the depth for which apparent soil temperature could be retrieved. In general, the thickness of the emitting layer depends on the TB look angle and polarization, along with the moisture and temperature profiles of the soil. It was also shown that due to the effect of the Brewster angle, the H-polarization of TB was twice as sensitive (4 K/1%) to changes in volumetric soil moisture than V-polarization (1.9 K/1%). Based on multi-angular (10°-50°) observations of TB at H- and V-polarizations, a method of moisture profile retrieval in the top 5–15 cm soil (depending on surface moisture) was proposed using an exponential fitting function, the parameters of which are found in the course of solving the inverse problem. A decrease in the sensing frequency from 750 MHz to 409 MHz makes it possible to increase the accuracy of soil moisture profiles retrieval by a factor of two, being from RMSE = 1.6% (R2 = 0.946) to RMSE = 0.85% (R2 = 0.982) in the top 15 cm layer of soil. The conducted investigation shows the promise of using P-band observations of TB for soil moisture profile retrieval.
Смотреть статью,
Scopus,
WOS
Найти похожие

12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Parshin A. M., Zyryanov V. Ya., Shabanov V. F.
Заглавие : Optical transmission modulation and spectral properties of self-organized nematic domains
Колич.характеристики :6 с
Место публикации : Opt. Mater. - 2024. - Vol. 150. - Ст.115232. - ISSN 09253467 (ISSN), DOI 10.1016/j.optmat.2024.115232. - ISSN 18731252 (eISSN)
Примечания : Cited References: 24
Аннотация: The modulation and spectral characteristics of self-organized ensembles of nematic domains with the disclination lines non-aligned and aligned in a magnetic field have been studied using an electric field. The obtained experimental voltage dependences of the light transmission agree well with the dependences calculated using the model considerations. These dependences have been compared with the electro-optical characteristics of a homogeneous planar nematic layer. The amplitude component of the optical transmission determined by light scattering and the oscillating component caused by the phase modulation have been examined. The effect of the spectral dispersion of transmission on the electro-optical characteristics of domain ensembles has been evaluated.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Martynov A.S., Dzebisashvili D. M.
Заглавие : Quantum SU(3)-ferrimagnet on triangular lattice
Колич.характеристики :13 с
Место публикации : J. Magn. Magn. Mater. - 2024. - Vol. 594. - Ст.171906. - ISSN 03048853 (ISSN), DOI 10.1016/j.jmmm.2024.171906. - ISSN 18734766 (eISSN)
Примечания : Cited References: 48. - The authors thanks professor V.V. Val’kov for original idea of this article, for his continuous interest and enormous contribution to this work
Аннотация: Manifestations of quantum effects in the macroscopic properties of frustrated magnets keep attracting considerable interest. We have formulated and studied a simple model of a three-sublattice mixed-spin (S=1,1/2,1/2) SU(3)-ferrimagnet on triangular lattice in which the strong quantum fluctuations are developed due to combined effect of frustrated exchange bonds, reduced dimensionality and a single-ion easy-plane anisotropy in the spin-1 sublattice. To account correctly for the SU(3) algebra, the Hubbard operators representation of generators is used. Dependencies of the magnetic moments R and RL (for spin-1/2 and spin-1 sublattices respectively), the total magnetic moment M, as well as the quadrupole moment, on the anisotropy parameter D are calculated at zero temperature and different ratios I/J of exchange integrals from different sublattices. It is established that for I/J≪1 the critical value Dc, at which the system enters the quadrupole antiferromagnetic phase, can be much smaller than both I and J. Besides, with an increase in D from zero to Dc the total moment M can change its direction several times via taking zero value. Classification of four branches of the spin-wave excitation spectrum of the SU(3)-ferrimagnet is carried out and modification of the spectrum with change in the single-ion anisotropy is analyzed.
Смотреть статью,
Scopus,
Читать в сети ИФ
Найти похожие

14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Kharkov A., Sitnikov M.
Заглавие : Regulation of the thermopower and ultrasound by magnetic field in manganese sulfide doped with variable-valence ions
Колич.характеристики :11 с
Место публикации : Eur. Phys. J. Plus. - 2024. - Vol. 139, Is. 3. - Ст.247. - ISSN 21905444 (eISSN), DOI 10.1140/epjp/s13360-024-05032-2
Примечания : Cited References: 50. - The study was supported by a grant from the Russian Science Foundation N 23-22-10016, the Krasnoyarsk Regional Science Foundation. The investigation of microstructural properties of the samples was carried out using equipment’s (SEM and TEM) the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS». The authors are grateful to A.V. Shabanov for the scanning electron microscopy investigations
Аннотация: The effect of cation nonstoichiometry and variable-valence samarium ions on the thermoelectric and structural characteristics of manganese sulfide is studed. Nonstoichiometry leads to a change in the thermopower sign in the antiferromagnetic region in a magnetic field and a decrease in the thermopower in the paramagnetic region. It is shown that the thermopower and Nernst–Ettingshausen coefficient of samarium-substituted manganese sulfide change their signs in the vicinity of structural and electronic transitions established from the thermal expansion coefficient. A decrease in the sound attenuation in a magnetic field is found. A correlation between the temperatures of the change of the sign of the Nernst–Ettingshausen effect and the change in electrosound in a magnetic field is established and explained within the model of carrier diffusion in the phase transition region. The conductivity control by the ultrasound is demonstrated.
Смотреть статью,
Scopus,
Читать в сети ИФ
Найти похожие

15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Suresh R., Bishnoi H., Kuklin A. V., Parikh A., Molokeev M. S., Harinarayanan R., Gharat S., Hiba P.
Заглавие : Revolutionizing physics: a comprehensive survey of machine learning applications
Колич.характеристики :31 с
Место публикации : Front. Phys. - 2024. - Vol. 12. - Ст.1322162. - ISSN 2296424X (eISSN), DOI 10.3389/fphy.2024.1322162
Примечания : Cited References: 303. - RS acknowledges the support of the Russian Science Foundation (Project 22-73-10047). MM acknowledges the support by the Tyumen Oblast Government, as part of the West-Siberian Interregional Science and Education Center’s project No. 89-DON (3)
Аннотация: In the context of the 21st century and the fourth industrial revolution, the substantial proliferation of data has established it as a valuable resource, fostering enhanced computational capabilities across scientific disciplines, including physics. The integration of Machine Learning stands as a prominent solution to unravel the intricacies inherent to scientific data. While diverse machine learning algorithms find utility in various branches of physics, there exists a need for a systematic framework for the application of Machine Learning to the field. This review offers a comprehensive exploration of the fundamental principles and algorithms of Machine Learning, with a focus on their implementation within distinct domains of physics. The review delves into the contemporary trends of Machine Learning application in condensed matter physics, biophysics, astrophysics, material science, and addresses emerging challenges. The potential for Machine Learning to revolutionize the comprehension of intricate physical phenomena is underscored. Nevertheless, persisting challenges in the form of more efficient and precise algorithm development are acknowledged within this review.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Muraev P. S., Maksimov D. N., Kolovsky A. R.
Заглавие : Signatures of quantum chaos and fermionization in the incoherent transport of bosonic carriers in the Bose-Hubbard chain
Колич.характеристики :5 с
Место публикации : Phys. Rev. E. - 2024. - Vol. 109, Is. 3. - Ст.L032107. - ISSN 24700045 (ISSN), DOI 10.1103/PhysRevE.109.L032107. - ISSN 24700053 (eISSN)
Примечания : Cited References: 34. - The authors acknowledge financial support from the Ministry of Science and Higher Education of Russian Federation (Project No. FSRZ-2023-0006)
Аннотация: We analyze the stationary current of Bose particles across the Bose-Hubbard chain connected to a battery, focusing on the effect of interparticle interactions. It is shown that the current magnitude drastically decreases as the strength of interparticle interactions exceeds the critical value which marks the transition to quantum chaos in the Bose-Hubbard Hamiltonian. We found that this transition is well reflected in the nonequilibrium many-body density matrix of the system. Namely, the level-spacing distribution for eigenvalues of the density matrix changes from Poisson to Wigner-Dyson distributions. With the further increase of the interaction strength, the Wigner-Dyson spectrum statistics change back to the Poisson statistics which now marks fermionization of the Bose particles. With respect to the stationary current, this leads to the counter-intuitive dependence of the current magnitude on the particle number.
Смотреть статью,
Читать в сети ИФ,
Scopus,
WOS
Найти похожие

17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ma Y., Liao W., Quan B., Kong Z., Molokeev M. S., Zolotov A., Cheng M., Chen X., Zhou Zh., Xia M.
Заглавие : Solid solution structural engineering enhances the luminescence of SrMgAl10O17:Cr3+ for agricultural lighting
Колич.характеристики :7 с
Место публикации : J. Lumin. - 2024. - Vol. 270. - Ст.120553. - ISSN 00222313 (ISSN), DOI 10.1016/j.jlumin.2024.120553. - ISSN 18727883 (eISSN)
Примечания : Cited References: 46. - The authors would like to gratefully acknowledge funds from the Key R & D Projects in Hunan Province (2021SK2047, 2022NK2044), the Wangcheng Science and Technology Plan (KJ221017), the Science and Technology Innovation Program of Hunan Province (2022WZ1022). The work was supported by the Ministry of Science and Higher Education of the Russian Federation as part of the World-class Research Center program: ‘‘Advanced Digital Technologies’’, contract no. 075-15-2020-935. Research Foundation of Education Bureau of Hunan Province, China (22B0211)
Аннотация: Lead-free non-rare earth oxide phosphors have attracted wide attention due to their environmental protection, sustainability, and potential to replace halides and fluorides in the field of plant lighting. Among them, the Cr3+-excited aluminate phosphor exhibits high brightness, high thermal stability, and far red to near-infrared (NIR) emission due to the influence of the crystal field strength (CFS). This property gives rise to a variety of strategies used to modulate the CFS, for example, single ion substitution, chemical unit co-substitution, etc. Here, we chose the substitution of a single ion, with [BaO6] gradually replacing [SrO6] to form a solid solution. Their structural characteristics and the local structure of Cr3+ are studied and discussed. The device is packaged to evaluate the feasibility of the material for practical application. The prepared phosphor had a bright far-red light emission of 693 nm under blue light excitation, and this spectrum strongly matched the absorption of plant phytochrome PFR. This work provides the design principle of far red light emission activated by Cr3+ aluminate solid solution, which can inspire further research on pc-LED lights for plant lighting.
Смотреть статью,
Читать в сети ИФ
Найти похожие

18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Samoshkina Yu. E., Rautskii M. V., Neznakhin D., Stepanova E., Andreev N., Chichkov V., Zaikovskii V., Chernichenko A.
Заглавие : Strain-induced charge ordering above room temperature in rare-earth manganites
Колич.характеристики :11 с
Место публикации : Dalton Trans. - 2024. - Vol. 53, Is. 12. - P.5721-5731. - ISSN 14779226 (ISSN), DOI 10.1039/D3DT04299E. - ISSN 14779234 (eISSN)
Примечания : Cited References: 52
Аннотация: Most known mixed manganites containing rare-earth elements demonstrate a pronounced charge ordering (CO) state below room temperature. The behavior of the magnetic susceptibility and electronic magnetic resonance of polycrystalline Pr1−xSrxMnO3/YSZ (x = 0.2 and x = 0.4) films without a pronounced texture indicates the formation of the CO phase in the samples at temperatures close to and above room temperature. Moreover, this phase manifests itself with a typical sign of martensitic transformation.
Смотреть статью,
Scopus,
WOS
Найти похожие

19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Grigorchenko V.M., Molokeev M. S., Oreshonkov A. S., Aleksandrovsky A. S., Kertman A.V., Abulkhaev M.U., Mereshchenko A.S., Yurev I.O., Shulaev N.А., Kamaev D.N., Elyshev A.V., Andreev O.V.
Заглавие : Synthesis and properties of the NdSF compound, phase diagram of the NdF3–Nd2S3 system
Колич.характеристики :9 с
Место публикации : J. Solid State Chem. - 2024. - Vol. 333. - Ст.124640. - ISSN 00224596 (ISSN), DOI 10.1016/j.jssc.2024.124640. - ISSN 1095726X (eISSN)
Примечания : Cited References: 48. - This research was funded by the Tyumen Oblast Government as part of the West-Siberian Interregional Science and Education Center’s project No. 89-DON (3)The studies ab initio simulation of electron band structure, analysis of optical properties, XRD analysis was partially supported by "Priority-2030" program for the Siberian Federal University, and the state assignment of Kirensky Institute of Physics
Аннотация: The NdF3–Nd2S3 system attracts attention of researchers due to the possibility of using LnSF compounds (Ln = rare earth element) as possible new p- and n-type materials. The samples of this system were synthesized from NdF3 and Nd2S3. The NdSF compound belongs to the PbFCl structural type, P4/nmm space group, unit cell parameters: a = 3.9331(20) Å, c = 6.9081(38) Å. The experimentally determined direct and indirect NdSF bandgaps are equal to 2.68 eV and 2.24 eV. The electronic band structure was calculated via DFT simulation. The NdSF compound melts congruently at T = 1385 ± 10°С, ΔНm = 40.5 ± 10 kJ/mol, ΔS = 24.4 ± 10 J/mol. The NdSF microhardness is 455 ± 10 HV. Five phase transformations in the NdF3–Nd2S3 system were recorded by DSC; their balance equations were derived. The liquidus of the system calculated from the Redlich–Kister equation is fully consistent with the DSC data.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shustin M. S., Aksenov S. V., Burmistrov I. S.
Заглавие : Topological phases induced by charge fluctuations in Majorana wires
Колич.характеристики :18 с
Место публикации : Phys. Rev. B. - 2024. - Vol. 109, Is. 7. - Ст.075435. - ISSN 24699950 (ISSN), DOI 10.1103/PhysRevB.109.075435. - ISSN 24699969 (eISSN)
Примечания : Cited References: 71. - We thank D. M. Dzebisashvili, A. O. Zlotnikov, and, especially, Yu. G. Makhlin, for fruitful discussions. S.V.A. is grateful to Landau Institute for Theoretical Physics for hospitality. The reported study was supported by Russian Science Foundation, Project No. 22-42-04416
Аннотация: The influence of many-body interactions on topological phases is one of the problems that still remains urgent in modern condensed-matter theory. In this study we address this issue within perturbative theory framework by considering topological phase transitions related to charge correlations in the extended Kitaev chain model that belongs to the BDI symmetry class. Obtained corrections to a zero-frequency quasiparticle Green's function allow to separate the mean-field and fluctuation contributions to a total winding number. As a result, the phase transitions caused solely by the latter are unveiled. We thoroughly analyze the mechanism of such transitions in terms of fluctuation-induced nodal points and spectrum renormalization. Additionally, features of other quasiparticle properties such as effective mass and damping are discussed in the context of topological phase transitions.
Смотреть статью,
WOS,
Читать в сети ИФ
Найти похожие