Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques最新文献

Flexible and Elastic Light-Emitting Structures Emitting in the UV-A and UV-B Spectral Ranges Based on AlGaN/GaN Microwires 基于AlGaN/GaN微线的UV-A和UV-B光谱范围的柔性和弹性发光结构

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701077

D. E. Kolesina, F. M. Kochetkov, I. S. Mukhin

引用次数: 0

MD Simulation of Sputtering of Single-Crystal Silicon and Germanium by Argon Clusters 氩簇溅射单晶硅和锗的MD模拟

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S102745102670103X

I. V. Nikolaev, P. V. Stishenko, N. G. Korobeishchikov

{"title":"MD Simulation of Sputtering of Single-Crystal Silicon and Germanium by Argon Clusters","authors":"I. V. Nikolaev, P. V. Stishenko, N. G. Korobeishchikov","doi":"10.1134/S102745102670103X","DOIUrl":"10.1134/S102745102670103X","url":null,"abstract":"Sputtering of single-component semiconductors, silicon and germanium, by argon clusters is considered using molecular dynamics simulation. Argon clusters with a size of 923 atoms and a kinetic energy of 10 keV are used. The angle of incidence of the clusters varied in a wide range from 0° to 75° relative to the normal to the target surface. The values of the averaged sputtering yields and averaged specific energies of sputtered silicon and germanium atoms are presented for different angles of incidence of the clusters. A comparison of the angular distributions of the sputtering yield and the energy of sputtered atoms for different targets is performed. It is shown that with varying the angle of incidence of the clusters, the sputtering yield and specific energy of the sputtered target atoms change nonlinearly, nonmonotonically and have a pronounced maximum. It is determined that the maximum sputtering yield for germanium is 25 atom/cluster, and for silicon, 20 atom/cluster. It is found that for the same target, the maximum sputtering yield and maximum energy of sputtered target atoms are observed at different angles of incidence of clusters. It is shown that the averaged specific energy of sputtered target atoms for germanium varies from 2 to 8.5 eV/atom, and for silicon, from 1.3 to 5 eV/atom depending on the angle of incidence of clusters.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"20 3","pages":"543 - 546"},"PeriodicalIF":0.4,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation of Hard Gamma Quanta by a Charged Oriented Particle in a Crystal 晶体中带电取向粒子对硬伽马量子的辐射

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701235

E. A. Mazur

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Influence of Relativistic Electron Beam Divergence on X-ray Radiation in a Periodic Layered Medium with Three Layers per Period 相对论电子束发散对三层周期层状介质中x射线辐射的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701119

A. V. Noskov, S. V. Blazhevich, P. D. Pugina, E. D. Pronina

引用次数: 0

Obtaining Nanomaterials by Thermolysis of Silver(I) Benzoate to Improve the Antifriction Properties of Triboconjugated Surfaces 用苯甲酸银热裂解法制备纳米材料以提高摩擦共轭表面的抗摩擦性能

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701132

M. A. Tautieva, E. G. Korzh, V. E. Burlakova, L. D. Popov

引用次数: 0

Features of Liquid Corrosion of Polycrystalline Magnesium Irradiated by a High-Power Ion Beam 高能离子束辐照下多晶镁的液态腐蚀特征

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701016

T. V. Panova, V. S. Kovivchak

引用次数: 0

Stabilization of Ferroelectric Polarization of Ultrathin Films by Surface Modification with Ion Beams 离子束表面改性对超薄膜铁电极化稳定性的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701053

D. V. Kuzenko

{"title":"Stabilization of Ferroelectric Polarization of Ultrathin Films by Surface Modification with Ion Beams","authors":"D. V. Kuzenko","doi":"10.1134/S1027451026701053","DOIUrl":"10.1134/S1027451026701053","url":null,"abstract":"The stabilization of spontaneous polarization in ultrathin ferroelectric films was studied. For this purpose, surface modification by implantation of metal ions with energies of 102–103 eV was proposed. Based on Lindhard–Scharff–Schiøtt (LSS) theory, this approach made it possible to consider the electronic energy-loss mechanism during interaction and excitation of the electronic subsystems of the interacting ions. The Thomas–Fermi screening length λF–D and Debye screening length λD were calculated to determine the conditions for screening the electric charge of free electrons. The importance of accounting for the temperature dependence of the dielectric permittivity ε(T) of the ferroelectric target when selecting the temperature conditions for surface modification by ion beams was demonstrated. This dependence is associated with activation processes of the ferroelectric phase transition having different activation energies, including activation and interaction of the defect, domain, and electronic structures of the ferroelectric. To select the metal ion for implantation, the interaction potential U between the implanted metal ions and the ions of the cubic perovskite crystal structure was calculated using the Thomas–Fermi model with an exponential function describing electron screening of the nuclei. SrTiO3, BaTiO3, PbTiO3, and the Pb(Zr,Ti)O3 solid solution were used as model samples.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"20 3","pages":"551 - 557"},"PeriodicalIF":0.4,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operando Cell for the Study of Oxygen Reduction Reaction Catalysts Using a Laboratory X-ray Absorption Spectrometer 用实验室x射线吸收光谱仪研究氧还原反应催化剂的Operando电池

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701181

V. M. Sklyarov, M. A. Gritsai, V. A. Roldugin, I. A. Pankin, M. A. Soldatov

{"title":"Operando Cell for the Study of Oxygen Reduction Reaction Catalysts Using a Laboratory X-ray Absorption Spectrometer","authors":"V. M. Sklyarov, M. A. Gritsai, V. A. Roldugin, I. A. Pankin, M. A. Soldatov","doi":"10.1134/S1027451026701181","DOIUrl":"10.1134/S1027451026701181","url":null,"abstract":"An operando cell was designed for measuring X-ray absorption spectra during the oxygen reduction reaction (ORR) using a laboratory Rigaku R-XAS Looper spectrometer. The cell design enables adjustment of the optical path length through the electrolyte in the range of 1 to 2.5 mm, variation of the effective flow rate of oxygen-saturated electrolyte, and simultaneous electrochemical and spectroscopic measurements. A prototype of the cell was fabricated by photopolymer 3D printing and tested using a cobalt-containing ORR catalyst in alkaline solution. A Co–N–C catalyst was obtained via a two-step synthesis consisting of solvothermal synthesis of ZIF-67 followed by calcination under a nitrogen flow. The synthesized catalyst was comprehensively characterized using X-ray diffraction, X-ray fluorescence analysis, and related techniques. Electrochemical measurements showed that the catalyst exhibited an ORR half-wave potential (E1/2 = 0.860 V vs. RHE) and retained 76% of its activity after 6000 cycles. XAS spectra were recorded in transmission mode on the laboratory Rigaku R-XAS Looper spectrometer. Operando XAS revealed reversible changes in the Co2+/Co3+ oxidation state during the reaction. The developed cell expands the capabilities of laboratory operando XAS studies without the need for synchrotron radiation sources.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"20 3","pages":"645 - 654"},"PeriodicalIF":0.4,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Resonant Charge Transfer in Scattering of Alkali Ions on Metal Surfaces: Theoretical Modeling Based on Anderson‒Newnes Hamiltonian 碱离子在金属表面散射中的共振电荷转移：基于Anderson-Newnes哈密顿量的理论建模

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S1027451026701028

J. A. Melkozerova, S. S. Moskalenko, I. K. Gainullin

{"title":"Resonant Charge Transfer in Scattering of Alkali Ions on Metal Surfaces: Theoretical Modeling Based on Anderson‒Newnes Hamiltonian","authors":"J. A. Melkozerova, S. S. Moskalenko, I. K. Gainullin","doi":"10.1134/S1027451026701028","DOIUrl":"10.1134/S1027451026701028","url":null,"abstract":"The process of negative ionization of hydrogen on surfaces with a low work function plays an important role in the creation of highly efficient sources of negative ion beams used in accelerators, mass spectrometry, thermonuclear installations, and other high-tech areas. Increasing the efficiency of negative ion sources requires an in-depth understanding of the mechanisms of resonant charge transfer. In this study, the problem of electron exchange between an H0 atomic particle and a cesium-coated W(110) surface was considered and the negative ionization process was studied. The problem was described using the Anderson–Newnes theory, which allows one to take into account the dynamics of hybridization of the electron states of the adsorbate and the surface. Contrary to expectations based on the shifted Fermi sphere model, an increase in the parallel component of the particle velocity led to a decrease in the probability of H– formation. This discrepancy with the predictions of traditional models emphasizes the need to take into account the dynamic aspects of electron exchange and the initial conditions of the system.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"20 3","pages":"537 - 542"},"PeriodicalIF":0.4,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure of Thin-Film Cr‒Mn‒A (A = W, Pt, Cu) Systems and Magnetic Properties of Layered Composites Based on Them Cr-Mn-A （A = W, Pt, Cu）薄膜体系的微观结构及其层状复合材料的磁性能

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2026-10-17 DOI: 10.1134/S102745102670117X

A. A. Yushkov, A. A. Feshchenko, V. N. Lepalovskij, S. V. Semenova, A. S. Kalashnikova, V. O. Vas’kovsky

{"title":"Microstructure of Thin-Film Cr‒Mn‒A (A = W, Pt, Cu) Systems and Magnetic Properties of Layered Composites Based on Them","authors":"A. A. Yushkov, A. A. Feshchenko, V. N. Lepalovskij, S. V. Semenova, A. S. Kalashnikova, V. O. Vas’kovsky","doi":"10.1134/S102745102670117X","DOIUrl":"10.1134/S102745102670117X","url":null,"abstract":"Films of the antiferromagnet Cr70Mn30 doped with W, Pt, and Cu in amounts of up to 30 at % were obtained by magnetron cosputtering of targets. The microstructure of the films was studied using transmission electron microscopy. General and specific patterns of structure modification with different doping levels were revealed, which are associated with the intensification of diffusion processes at the film growth stage under the action of dopants. Changes in the size and morphology of crystals growing in the films were observed. In the case of doping with tungsten, superstructural ordering of the crystal lattice was observed. Ferromagnet/antiferromagnet composites based on these films were also obtained to study their magnetic properties. The coercive force and exchange bias field were measured depending on the dopant concentration. A correlation between the structural features of the doped antiferromagnet and the hysteresis properties of the composites based on it was established.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"20 3","pages":"635 - 644"},"PeriodicalIF":0.4,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0