Physics of the Solid State最新文献_第10页

Computational Modeling of a Robot with Hydraulic Control by Velocity Vector Walking on a Solid Surface 基于速度矢量在固体表面行走的液压控制机器人的计算建模

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-07-10 DOI: 10.1134/s1063783423010018

V. Mikhailov, A. Perevaryukha

引用次数: 0

Transport Properties of Layered Heterostructures on the Base of a Conducting Polymer 导电聚合物基层状异质结构的输运性质

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-21 DOI: 10.1134/S1063783422120010

K. Yu. Arutyunov, K. A. Belyaev, V. V. Artemov, A. L. Vasil’ev, A. R. Yusupov, D. D. Karamov, A. N. Lachinov

引用次数: 0

Kinetics of Convergence the Si(100) Surface Steps Si(100)表面台阶收敛动力学

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-21 DOI: 10.1134/S1063783422120022

M. Yu. Yesin, A. S. Deryabin, A. V. Kolesnikov, A. I. Nikiforov

{"title":"Kinetics of Convergence the Si(100) Surface Steps","authors":"M. Yu. Yesin, A. S. Deryabin, A. V. Kolesnikov, A. I. Nikiforov","doi":"10.1134/S1063783422120022","DOIUrl":"10.1134/S1063783422120022","url":null,"abstract":"The convergence kinetics of SA and SB steps on Si(100) substrates with inclination of 0.5° and 0.1° are studied. To establish the character of the growth kinetics, the time dependences of the reflection high‑energy electron diffraction (RHEED) intensity are analyzed. It is shown that the convergence rate of the steps in the Si at a growth rate of 0.37 ML/s has a decreasing dependence with an increase temperature. It is found that the rate of formation of a single-domain surface increases with the width of terraces on the surface, which is likely to be related to a partial participation of the growth due to the formation of two-dimensional islands. At temperatures higher 650°С, the dominant growth mode due to the motion of the steps and the rate of formation of the single-domain surface decrease with an increase in the terrace width. Thus, the convergence of single-layer steps is determined by the conditions of the growth of the molecular-beam epitaxy (MBE) and also by the Si(100) substrate orientation. The convergence of SA and SB steps of the Si(100) surface is explained by a slow-down motion of SA which is related to complex mechanisms of permeability and the formation of step kinks. It is assumed that the cause of the slow-down convergence the steps with increasing temperature is an increase in the kink density on the SA step, which decreases the permeability coefficient of the SA step.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"64 12","pages":"609 - 615"},"PeriodicalIF":0.6,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4829480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conduction Mechanisms and Thermoelectric Properties of Semimetallic CaSi and CaSi2 Films on Si(100) and Si(111) Substrates Si(100)和Si(111)衬底上半金属CaSi和CaSi2薄膜的导电机理和热电性能

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-21 DOI: 10.1134/S1063783422120034

N. G. Galkin, K. N. Galkin, A. V. Tupkalo, E. Yu. Subbotin, I. M. Chernev, A. V. Shevlyagin, V. V. Khovailo

{"title":"Conduction Mechanisms and Thermoelectric Properties of Semimetallic CaSi and CaSi2 Films on Si(100) and Si(111) Substrates","authors":"N. G. Galkin, K. N. Galkin, A. V. Tupkalo, E. Yu. Subbotin, I. M. Chernev, A. V. Shevlyagin, V. V. Khovailo","doi":"10.1134/S1063783422120034","DOIUrl":"10.1134/S1063783422120034","url":null,"abstract":"Nanocrystalline CaSi films with thicknesses from 80 to 130 nm were grown on high-resistance silicon substrates with orientations (111) and (100) by the methods of low-temperature (190–330°C) molecular-beam epitaxy and low-temperature (330°C) solid-phase epitaxy, for which the microstructure, phase composition, and crystal structures were studied. It is found that the polycrystalline, nanocrystalline (NC), and amorphous CaSi and CaSi2 films are characterized by preferential contribution of holes in the range 1.4–300 K. In magnetic fields 1–4 T and at temperatures 40–100 K, a giant linear magnetoresistive effect (MRE) (to 500%) was observed for the first time in CaSi films with the contribution of another CaSi2 phase. In CaSi2 film containing another phase (CaSi), peaks are detected on the temperature dependences of the resistivity and the Hall coefficient that correspond to a phase transition. In addition, in this film, the transition from the positive MRE to negative MRE is observed at Т = 120–200 K. This effect is not observed in the single-phase CaSi2 film, which corresponds to a certain reconstruction of carrier flows in a magnetic field only in the two-phase system. The study of the thermoelectric properties of CaSi and CaSi2 films shows that the semimetallic type of the conduction in them leads to the independence of the positive Seebeck coefficient Т = 330–450 K. It is found that the maximum contribution to the Seebeck coefficient and the power factor are observed in the amorphous CaSi film in the case of the presence of some fraction of NC Ca2Si phase. In the single-phase CaSi2 films, the Seebeck coefficient and the power factor are halved due to an increase in the hole concentration as compared to the CaSi films.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"64 12","pages":"616 - 623"},"PeriodicalIF":0.6,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4834302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Specific Heat of CoFe2O4 and the 0.3CoFe2O4–0.7PbTiO3 Composite CoFe2O4和0.3CoFe2O4-0.7PbTiO3复合材料的比热

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110075

R. G. Mitarov, S. N. Kallaev, Z. M. Omarov, K. G. Abdulvakhidov

引用次数: 0

Current Instability of Hardening of a Deformable Medium Element as a Reason of the Neck Propagation 可变形介质单元硬化的电流不稳定性是颈扩展的原因

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110117

V. A. Starenchenko, Ya. D. Lipatnikova, Yu. V. Solov’eva, N. N. Belov, L. A. Valuiskaya, I. G. Vovnova

{"title":"Current Instability of Hardening of a Deformable Medium Element as a Reason of the Neck Propagation","authors":"V. A. Starenchenko, Ya. D. Lipatnikova, Yu. V. Solov’eva, N. N. Belov, L. A. Valuiskaya, I. G. Vovnova","doi":"10.1134/S1063783422110117","DOIUrl":"10.1134/S1063783422110117","url":null,"abstract":"The effect of the current instability of hardening of a deformable medium element on the strain localization at different scale levels has been studied. The current instability term has been taken from the characteristic of the current instability of the electrical conductivity of semiconductors in strong electric fields with a specific I‒V curve [1]. A similar shape of the σ‒ε curve of hardening of a deformable medium element has been considered to be the cause of the strain localization. The strain localization phenomena caused by the current instability of different types have been discussed and modeled. It is shown that the plastic flow scenario under the current instability at the level of a microelement of a medium can manifest itself at the macroscale plastic flow level in the form of localizations of various types. The simulation within a two-level finite element model proposed previously in [2] has been carried out. The cases of a stable neck or neck propagation at the macrolevel under the uniaxial tension of a sample have been observed, depending on the shape of the hardening curves of the unit volume of a deformed sample similar the current instability curves.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"64 11","pages":"555 - 560"},"PeriodicalIF":0.6,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4094948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Luminescent Properties of Yttrium–Scandium Phosphate Solid Solutions Doped with Europium Ions 掺杂铕离子的磷酸钇钪固体溶液的发光特性

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110130

V. S. Voznyak-Levushkina, A. A. Arapova, D. A. Spassky, I. V. Nikiforov, B. I. Zadneprovski

引用次数: 0

Change in Elastic Deformations in SiC Films during Their Growth by the Coordinated Atomic Substitution Method on Si Substrates 用配位原子取代法在Si衬底上生长SiC薄膜时弹性变形的变化

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110038

Yu. A. Eremeev, M. G. Vorobev, A. S. Grashchenko, A. V. Semencha, A. V. Osipov, S. A. Kukushkin

引用次数: 1

Accumulation of Defects under Plastic Deformation of Polycrystalline Copper-Based Alloys 多晶铜基合金塑性变形缺陷的积累

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110129

L. I. Trishkina, T. V. Cherkasova, A. N. Solov’ev, N. V. Cherkasov

{"title":"Accumulation of Defects under Plastic Deformation of Polycrystalline Copper-Based Alloys","authors":"L. I. Trishkina, T. V. Cherkasova, A. N. Solov’ev, N. V. Cherkasov","doi":"10.1134/S1063783422110129","DOIUrl":"10.1134/S1063783422110129","url":null,"abstract":"The paper presents the experimental investigation of the role of the size factor in the formation of the defect structure of metallic materials. The objects of study were polycrystalline FCC Cu–Al and Cu–Mn solid solutions with average grain sizes of 10–240 µm. The dislocation structure of foil samples subjected to various deformations at room temperature was studied by TEM. We measured the scalar dislocation density (ρ), the density of geometrically necessary dislocations (GND) (ρg), the density of statistically stored dislocations (SSD) (ρs), the curvature-torsion of the crystal lattice (χ), and some other parameters. The effect of the grain size of the dislocation substructure on its parameters has been quantitatively studied. The sources of curvature-torsion χ of the crystal lattice were determined from electron microscopic images. We measured χ in the alloys under study from different sources and its change with distance (x) from the source for alloys with fixed grain size and degree of deformation. The change in the average value of curvature-torsion from all sources with the degree of deformation is considered.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"64 11","pages":"561 - 566"},"PeriodicalIF":0.6,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4094932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion Properties and Tribological Behavior of Tungsten Carbide Coatings with Alumide Matrix of SS AISI304 不锈钢AISI304铝基碳化钨涂层的腐蚀性能和摩擦学行为

IF 0.6 4区物理与天体物理

Physics of the Solid State Pub Date : 2023-03-02 DOI: 10.1134/S1063783422110026

A. A. Burkov, A. Yu. Bytsura

{"title":"Corrosion Properties and Tribological Behavior of Tungsten Carbide Coatings with Alumide Matrix of SS AISI304","authors":"A. A. Burkov, A. Yu. Bytsura","doi":"10.1134/S1063783422110026","DOIUrl":"10.1134/S1063783422110026","url":null,"abstract":"WC–Fe–Al coatings were obtained by the electrospark deposition of AISI304 stainless steel in an anode mixture of aluminum and iron granules with the addition of tungsten carbide powder. The coatings had a two-phase microstructure represented by an intermetallic Fe–Al matrix with large inclusions of tungsten carbide. Impedance spectrometry in 3.5% NaCl showed a decrease in the corrosion resistance of WC–Fe–Al coatings with an increase in the concentration of tungsten carbide in the anode mixture. Polarization tests showed that with an increase in the content of tungsten carbide in the anode mixture, the corrosion potential of coatings monotonically increased from –0.77 to –0.61 V. At the same time, the corrosion current density increased linearly from 19.4 to 62.7 µA/cm2. High-temperature oxidation of coatings are intensified with an increase in the concentration of tungsten carbide at a temperature of 900°C for 100 h of testing, however, moderate reinforcement of the Fe–Al matrix with tungsten carbide did not worsen its oxidation resistance. With increase in the of reinforcing ceramic content in the Fe–Al coating, its microhardness increases from 7.3 to 11 GPa, the coefficient of friction decreases to 0.51 and wear resistance improves. The use of WC/Fe–Al coatings on AISI 304 stainless steel makes it possible to increase the hardness and oxidation resistance of steel surface, reduce the coefficient of friction, and improve wear resistance up to 19 times.","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"64 9","pages":"504 - 510"},"PeriodicalIF":0.6,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4094943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0