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Defect-Assisted Recombination Accelerates Spin Depolarization in Monolayer CrSBr
The Journal of Physical Chemistry Letters. 2026. Vol. 17. No. 40. P. 11338–11345.
Defect-controlled carrier charge and spin dynamics are central to the functionality of two-dimensional magnetic semiconductors. Here, ferromagnetic monolayer CrSBr with bromine vacancies is used to reveal how intrinsic defects couple nonradiative recombination to spin depolarization. Time-dependent density functional theory combined with nonadiabatic molecular dynamics including noncollinear spin shows that bromine vacancy introduces a localized, spin-polarized in-gap hole-trap state that reconstructs the recombination pathway. Unlike direct interband recombination in pristine CrSBr, the defective system follows a two-step mechanism involving hole trapping and subsequent fast defect-assisted recombination, shortening the carrier lifetime from ∼1.38 ns to ∼0.20 ns. The characteristic time for the decay of the population-weighted spin-polarization is correspondingly shortened, showing that the loss of spin polarization is closely coupled to defect-mediated charge relaxation. These results establish a microscopic link among defect localization, carrier recombination, and spin-polarization decay in two-dimensional magnetic semiconductors.
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
Taye B. Z., Zhu J., Liu Z. et al., Materials Science and Engineering: R: Reports 2026 Vol. 171 Article 101262
Wide-bandgap (WBG) perovskites used in monolithic tandem solar cells are limited by nonradiative recombination losses and operational instability originating from defect formation during crystallization and their subsequent evolution under illumination. Here, we show that defect formation can be regulated at the precursor stage by coordination chemistry, instead of relying only on post-crystallization passivation. A fluorinated ...
Added: July 1, 2026
Kaveev A. K., Fedorov V. V., Pavlov A. V. et al., Journal of Materials Chemistry C 2026 Vol. 14 No. 7 P. 2697–2705
Bismuth nanostructures represent a promising material platform for semiconductor nanooptoelectronics and colorimetry owing to the multi-colored light reflection and quantum confinement. In this work, we study the photoluminescent properties of bismuth nanostructures grown using molecular beam epitaxy on the planar CaF2/Si(111) surface. We demonstrate the different surface morphologies of Bi, ranging from planar films obtained ...
Added: May 19, 2026
Yasnitsky L., Голдобин М. А., Мезенцев А. С., Прикладная математика и вопросы управления 2025 № 2 С. 99–116
Представлен обзор современных методов и основанных на них программных
инструментах, применяемых для математического моделирования серийных производственных процессов с целью снижения брака и повышения качества производимых изделий. Перечисляются группы работ, нацеленных на обнаружение и классификацию дефектов, работ, в которых решаются задачи прогнозирования образования дефектов и определения значимости параметров, работ направленных на поиск
оптимального сочетания технологических параметров изготовления изделий, ...
Added: February 15, 2026
Tissen M., Kushchuk L., Bagzhanov D. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 2 P. 466–475
Recently, there has been a lot of interest in two-dimensional materials with intrinsic magnetism as potential platforms for the next generation of spintronic devices. Structural defects, that is, point atomic defects in the crystal structure, play a significant role in modulating the electronic and magnetic properties of two-dimensional materials. To gain a better understanding of ...
Added: January 2, 2026
Zheng Y., Zheng T., Luo S. et al., Small 2025 Vol. 21 No. 39 Article e05659
A complementary passivation strategy employing the simultaneous use of phenylethylammonium iodide (PEAI) and ethylhydrazinoacetate hydrochloride (EHACl) is developed to mitigate multiple surface defects in perovskite films. PEAI mainly aims at vacancy defects and tends to induce quasi-2D/3D interface reconstruction, while rich Lewis base sites within EHACl enable it to selectively passivate Lewis acid defects such ...
Added: August 15, 2025
Motsar E., Sheveleva A., Sharko F. et al., Plants 2025 Vol. 14 No. 11 Article 1619
Phlox are ornamental plants of great decorative value, grown throughout the world for their attractive flowers. Phlox cultivar collections at the Tsitsin Main Botanical Garden and the Botanical Garden of Lomonosov Moscow State University (both Moscow, Russia) were surveyed for virus diseases. Tobacco streak ilarvirus (TSV), beet ringspot nepovirus (BRSV), and BRSV satellite RNA (satRNA) ...
Added: May 14, 2025
Dmitry Vasilyev, Renat S. Ikhsanov, Zheleznyi M. et al., Journal of Materials Science 2025 Vol. 60 P. 5427–5441
Compounds with structures of the Laves phase type, which are precipitated in the matrix of steels or superalloys as a result of the work of the product at high temperatures, are usually considered useful strengthening phases, whose elastic and thermal properties are of considerable interest. In our work, the coefficients of the elastic tensor of ...
Added: March 29, 2025
Wu Y., Liu D., Chu W. et al., Nanoscale 2025 Vol. 17 No. 4 P. 2224–2234
Metal halide perovskites (MHPs) have attracted strong interest for a variety of applications due to their low cost and excellent performance, attributed largely to favorable defect properties. MHPs exhibit complex dynamics of charges and ions that are coupled in unusual ways. Focusing on a combination of two common MHP defects, i.e., a grain boundary (GB) ...
Added: November 28, 2024
Qiao L., Andrey S. Vasenko, Evgueni V. Chulkov et al., The Journal of Physical Chemistry Letters 2025 Vol. 16 No. 1 P. 215–221
Hybrid lead halide perovskites are promising materials for photovoltaic applications due to their exceptional optoelectronic properties. Here, we investigate the impact of Schottky defects─specifically PbI2(VPbI2) and CH3NH3I (VMAI) vacancies─on nonradiative recombination in CH3NH3PbI3 using time-dependent density functional theory and nonadiabatic (NA) molecular dynamics. Our results reveal that Schottky defects do not alter the fundamental bandgap or ...
Added: November 22, 2024
Dvoretckaia L. N., Fedorov V. V., Pavlov A. et al., Materials Research Bulletin 2025 Vol. 182 Article 113126
In this study, we present the selective area plasma-assisted molecular beam epitaxial growth of GaP-based nanoheterostructures (nanostubs), incorporating direct bandgap GaAsP or GaPN segments, on patterned SiO2/ Si(001) wafers. A microsphere optical lithography and anisotropic Si wet-etching techniques were employed for wafer-scale surface patterning through SiO2 growth mask, allowing to obtain either planar or pyramidal ...
Added: October 14, 2024
Sukhorukov G., Paramonov A., Lisak O. et al., PLoS Neglected Tropical Diseases 2023 Vol. 17 No. 3 Article e0011141
Tick-borne encephalitis virus (TBEV) is a flavivirus which causes an acute or sometimes chronic infection that frequently has severe neurological consequences, and is a major public health threat in Eurasia. TBEV is genetically classified into three distinct subtypes; however, at least one group of isolates, the Baikal subtype, also referred to as "886-84-like", challenges this ...
Added: April 8, 2023
Левин Г. Г., Иванов В. С., Minaev V. et al., Законодательная и прикладная метрология 2021 № 4 С. 35–40
В статье рассмотрены вопросы, связанные с особенностями метрологической поддержки аддитивного производства изделий, а также применение оптических методов измерений геометрических параметров, внутренних напряжений и дефектов изделий аддитивных технологий. ...
Added: February 7, 2023
Мезенцев А. С., Yasnitsky L., Прикладная информатика 2022 Т. 17 № 6 С. 56–67
Machine learning methods are currently widely used to solve various production
problems, the problems of defects diagnosing and predicting for items in mass production,
in particular. One of the most important problems is defects diagnosing and predicting,
basing on its solution the regulations for the technological processes parameters and raw
materials used can be determined, that insures the minimum ...
Added: January 31, 2023
Иванов А. Д., Minaev V., Вишняков Г. Н., Приборы и техника эксперимента 2019 № 6 С. 121–125
The results of measuring the deformation of products manufactured by methods of additive technologies are presented. The process of searching for and determining subsurface delamination and inconsistency defects by a contactless optical method based on shearography is shown. This method works on the
principles of interferometry and holography. The slightest displacement of the surface can be ...
Added: November 2, 2021
Saakian D., Vardanyan E., Yakushkina T., Physica A: Statistical Mechanics and its Applications 2020 Vol. 541 Article 123091
We investigate the evolutionary model with recombination and random switches in the fitness function due to change in a special gene. The dynamical behaviour of the fitness landscape induced by the specific mutations is closely related to the mutator phenomenon, which, together with recombination, plays an important role in modern evolutionary studies. It is of ...
Added: December 10, 2019
Medvedev M., Salikov R., Trainov K. et al., Dyes and Pigments 2019 Vol. 161 P. 500–509
Two approaches for the synthesis of D-A chromophores containing arylhydrazonocyclopentadiene acceptor moieties were developed. The first approach includes the decarboxylative azo coupling reaction between penta(methoxycarbonyl)cyclopentadienyl potassium or sodium and aryldiazonium salts to give products containing four ester groups at the acceptor moiety. The second one includes the reaction of 1,3-dimethoxycarbonyl-4,5-diphenylcyclopentadienone with arylhydrazine hydrochlorides into arylhydrazonocyclopentadienes ...
Added: October 9, 2019
Lankin A. V., Orekhov M., Journal of Physics: Conference Series 2018 Vol. 946 P. 1–7
Recombination in liquid in diffusion regime is considered using molecular dynamics. A method to take into account change in interaction potential due to recombination act is suggested. Different processes that affect recombination rate are considered. It is found that ion cluster pair formation is important in addition to diffusion motion of ions. Results of the ...
Added: March 22, 2018