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Pressure-induced reentrant transition in NbS3 phases: Combined Raman scattering and x-ray diffraction study
Physical Review B: Condensed Matter and Materials Physics. 2019. Vol. 99. Article 235126.
Abdel-Hafiez M., Thiyagarajan R., Majumdar A., Ahuja R., Luo W., Vasiliev A. N., Maarouf A. A., Zybtsev S., Pokrovskii V., Zaitsev-Zotov S., Pavlovskiy V. V., Pai W. W., Yang W., Kulik L.
We report the evolution of charge density wave states under pressure for two NbS3 phases: triclinic (phase I) and monoclinic (phase II) at room temperature. Raman and x-ray diffraction (XRD) techniques are applied. The x-ray studies on the monoclinic phase under pressure show a compression of the lattice at different rates below and above ∼7 GPa but without a change in space group symmetry. The Raman spectra of the two phases evolve similarly with pressure; all peaks almost disappear in the ∼6–8 GPa range, indicating a transition from an insulating to a metallic state, and peaks at new positions appear above 8 GPa. The results suggest suppression of the ambient charge-density waves and their subsequent recovery with new orderings above 8 GPa.
Dmitriev A., Kornilov V., Batienkov R., Lecture Notes in Civil Engineering 2026 Vol. 886 P. 249–255
Numerous studies have provided compelling evidence that the probability distribution of avalanche sizes follows a power law, and that 1/f noise is present in the stochastic dynamics of landslides. We present a theoretical explanation of these phenomena within the framework of self-organized criticality theory, proposing a discrete-time model in the form of a sandpile cellular ...
Added: October 13, 2026
Dmitriev A., Shulman I., Lebedev A., Studies in Computational Intelligence 2026 Vol. 1265 P. 266–273
A discrete-time model is presented for the self-organization of the X/Twitter social network to the edge of a phase transition, characterized by avalanche-like propagation of information in the network. The model is based on the analogy between the critical dynamics of the X social network and sandpile cellular automata with Manna rule on the Chung-Lu ...
Added: October 13, 2026
Arutyunov K., Kharitonov I. A., Petrosyants K. O., JETP Letters 2026 Vol. 124 No. 6 P. 1–16
Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I–V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like ...
Added: October 13, 2026
Makarov D. M., Kalikin N., Fashchevsky K. A. et al., Electrochimica Acta 2026 Vol. 579 Article 150159
Machine learning (ML) has become a powerful tool for accelerating the development of carbon-based supercapacitors;
however, most published models assume that a single predictive framework can describe both conventional
porous carbons and hybrid carbon electrodes. Here, we test this assumption using a comprehensive
benchmark dataset and an extended literature-curated dataset enriched with synthesis- and electrolyte-related
descriptors. Three ML algorithms ...
Added: October 13, 2026
Махлуф М., Ozhegov R., Elezov M. et al., Фотоника 2026 Vol. 20 No. 6 P. 414–423
This paper compares the ranging precision of direct time-of-flight (dToF) and non-line-of-sight (NLOS) LiDAR architectures, both using a superconducting nanowire single-photon detector (SNSPD). Both systems operate at 1550 nm with a 50 ps pulsed laser and time-correlated single-photon counting (TCSPC). The dToF configuration achieved approximately 100 µm precision at 10 m, while the NLOS configuration achieved 500 µm precision for ...
Added: October 12, 2026
Singapore: Springer, 2026.
This volume presents the Proceedings of the 34th IUPAP Conference on Computational Physics (CCP2023), held in Kobe, Japan on August 4–8, 2023. It offers a collection of peer-reviewed articles that highlight recent developments in computational and simulation research across various areas of physics. Key topics include the use of data science, quantum computing, and machine ...
Added: October 12, 2026
Goncharov A., Chibisov A., Advanced Theory and Simulations 2023 Vol. 12 No. 13 Article 2200816
Designing stable quantum computers with the ability to correct errors responsibly requires a detailed understanding of the physical processes that underlie these devices. In this study, detailed quantum mechanical simulations of the atomic structure, charge distribution of electron density, and distribution and orientation of magnetic and quantum states as a function of applied external pressure ...
Added: October 11, 2026
Chibisov A., Gnidenko A., Chibisova M. et al., FlatChem 2023 Vol. 41 Article 100533
Manufacturing precise quantum computers with small errors in quantum operations, long coherence times, and low power consumption is the most important challenge in modern nanoelectronics. To understand the operating modes of such calculators in detail, both the optimal arrangement of the qubit system within the structure and changes in its magnetic properties must be comprehensively ...
Added: October 11, 2026
M. A. Prosnikov, Pisarev R. V., Christianen P. C., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 113 No. 9 Article 094423
Rhombohedral CoTiO3 is a Dirac-type antiferromagnet with unique nodal magnetic dynamics, a strong Zeeman-phonon effect, and multiple spin-orbital excitations. The intricate interaction between these excitations makes it difficult to precisely understand its properties. We report the observation of strong spin-phonon coupling for several phonon modes, as well as the Zeeman splitting of the degenerate phonon modes with 𝐸𝑔 symmetry. ...
Added: March 12, 2026
Daniil A. Bardonov, Minyaev M. E., Puntus L. et al., MolBank 2025 Vol. 2025 No. 4 Article M2102
A new bis(cyclopentadienyl) terbium(III) complex with 1,2,4-triphenylcyclopentadienyl and 4,4,4-trifluoro-1-phenylbutane-1,3-dionate ligands was synthesized. Single-crystal X-ray analysis revealed a mononuclear bis(cyclopentadienyl) complex with a diketonate ligand in the bisector plane. The compound under study exhibits a ligand ligand charge transfer state (LLCT), according to optical spectroscopy and crystallographic data. ...
Added: February 19, 2026
Ya. I. Rodionov, Rozhkov A. V., Beck M. E. et al., Physical Review B: Condensed Matter and Materials Physics 2025 Vol. 112 No. 20 P. –
We theoretically investigate a model with electrons and holes whose Fermi surfaces are perfectly nested. The fermions are assumed to be interacting, both with each other and with the lattice. To suppress inhomogeneous states, a sufficiently strong long-range Coulomb repulsion is included into the model. Using the mean field approximation, one can demonstrate that, in ...
Added: February 18, 2026
Bovkunova A., Bazhina E., Shmelev M. et al., Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya 2025 Vol. 51 No. 6 P. 472–487
The reaction of manganese(II) chloride with the azomethine ligand 4-((1H-pyrrol-2-yl)methylene-amino)-4H-1,2,4-triazole (HPyrtrz) affords crystals of 1D polymeric compound [MnII(HPyrtrz)(H2 O)Cl2]n (I). The addition of the coligand 1,10-phenanthroline (Phen) to the synthesis of compound I results in the sequential crystallization of two products: 1D polymeric compound [MnII(Phen)Cl2]n (II) and mononuclear complex [MnII(Phen)2Cl2]·HPyrtrz (III). Complex III is isolated ...
Added: February 10, 2026
D. A. Bardonov, K. A. Lysenko, I. E. Nifantiev et al., Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya 2025 Vol. 51 No. 3 P. 211– 217
in the presence of 1,3,5-trimethyl-1,3,5-triazacyclohexane (Me3tach) gives complexes of the
type [Cp'Y(Me3tach)Cl2] (Cp' = Ph2C5H3 (CpPh2) (I), Ph3C5H2 (CpPh3) (II), Ph4C5H (CpPh4) (III). The
molecular structure of complexes I–III was established by X-ray diffraction (CCDC nos. 2406644 (I),
2406645 (II), 2406646 (III)). The main structural parameters of all of the obtained monocyclopentadienyl
complexes were similar, irrespective of the number ...
Added: November 9, 2025
Аксенов О. И., Fuks A., Абросимова Г. Е. et al., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2023 Vol. 17 No. 5 P. 954–959
Added: May 31, 2024
Zybtsev n., Pokrovskii V. Y., Nikonov n. et al., JETP Letters 2023 Vol. 117 No. 2 P. 157–163
Three charge density waves (CDWs), two of which are formed above room temperature, are observed in the NbS3 monoclinic phase (NbS3-II). The charge density and mobility in the high-field limit have been determined for each of three CDWs in this work using the synchronization effect of CDWs in high-frequency fields. It has been found that the ...
Added: January 30, 2024
Дегтярева С. С., Бардонов Д. А., Лысенко К. А. et al., Координационная химия 2023 Т. 49 № 8 С. 504–512
reaction of triphenylcyclopentadienyl potassium with praseodymium and erbium chloride tetrahydrofuranates
gives, depending on the reactant ratio, tetranuclear ate complexes, [{(Ph3C5H2)Pr(THF)}2(μ2-Cl)2(μ3-Cl)3K]2(C7H8)4 (I) and [{(Ph3C5H2)Er(THF)}2(μ2-Cl)2(μ3-Cl)3K(THF)]2 (III), or
binuclear ate complexes [(Ph3C5H2)2LnCl(KCl)]2 Ln = Pr (II), Er (IV) (CCDC no. 2224244 (I),
2224243 (II), 2224245 (III), 2224242 (IV)). The structurally similar complexes I and III are based on the
{[Ln2(μ-Cl)3]2(μ-Cl)2K2} core, and ...
Added: January 28, 2024
I.A. Cohn, S.V. Zaitsev-Zotov, Physical Review B: Condensed Matter and Materials Physics 2023 Vol. 108 No. 11 Article 115124
We demonstrate that magnetoresistance of creeping charge-density waves in the quasi-one-dimensional
conductor o-TaS 3 changes its character from a negative parabolic at T 10 K, where it obeys the 1/T 2 law
to a weakly temperature-dependent negative nearly linear one at lower temperatures. The dominant contribution into the negative parabolic magnetoresistance comes from magnetic field induced ...
Added: October 25, 2023
Kochev V., Seidov S., Grigoriev P., MAGNETOCHEMISTRY 2023
Added: September 17, 2023
Seidov S., Kochev V., Grigoriev P., Physical Review B: Condensed Matter and Materials Physics 2023 Vol. 108 No. 12
Added: September 17, 2023
Kudryavtsev O., Bagramov R., Pasternak D. et al., Diamond and Related Materials 2023 Vol. 133 Article 109177
A new generation of nanodiamonds produced from hydrocarbons at high pressure has recently expanded the family of bottom-up-synthesis nanodiamonds. The first steps towards characterization of this nanomaterial allow us to suppose that more than one of its remarkable properties and applications will be demonstrated in the coming years. Here we report the Raman features of ultrasmall (2–5 nm) ...
Added: June 19, 2023
Koniakhin S., Utesov O., Yashenkin A., Physical Review Research 2023 Vol. 5 No. 1 Article 013153
Modification of optical phonon spectra in contacting nonpolar nanoparticles compared to single particles is studied. Optical phonons in dielectric and semiconducting particles obey the Euclidean metric Klein-Fock-Gordon equation with Dirichlet boundary conditions. This equation is supposed to be solved numerically for manifolds of cojoined spheres. It is proposed to replace this problem with the simpler-to-solve ...
Added: March 6, 2023
Рыжкин М. И., Рыжкин И. А., Кашин А. М. et al., Письма в Журнал экспериментальной и теоретической физики 2020 Т. 112 № 7-8(10) С. 531–538
The pressure dependence of the proton conductivity of water ice is studied theoretically. It is shown that the decrease in the hydrogen bond length leads to the decrease in the formation energy of ionic defects and to the increase in the formation energy of bond defects. As a result, the partial conductivity of ionic defects, ...
Added: October 31, 2022
Antipova K. I., Puntus L. N., Lysenko K. A. et al., Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya 2022 Vol. 48 No. 6 P. 379–384
The reactions of sodium 2-(quinolyl-8-iminomethyl)phenolate with rare-earth element chlorides afford homoleptic mononuclear complexes [Ln{2-(8-quinolyl)N=CH–C6H4O}3] (Ln = La (I), Nd (II), Eu (III), and Tb (IV)) with the nonacoordinated rare-earth element ion. All synthesized complexes are similar in structure, and complexes II, III, and IV are isostructural (CIF files CCDC nos. 2124365 (I), 2124364 (II), 2124366 ...
Added: October 24, 2022
Lin Z., Wang C., Balassis A. et al., Physical Review Letters 2022 Vol. 129 No. 18 Article 187601
1-TiSe2 is one of the most studied charge density wave (CDW) systems, not only because of its peculiar properties related to the CDW transition, but also due to its status as a promising candidate of exciton insulator signaled by the proposed plasmon softening at the CDW wave vector. Using high-resolution electron energy loss spectroscopy, we report ...
Added: October 4, 2022