Technical Physics最新文献_第8页

Resonant Tunneling of Photons in Layered Optical Nanostructures (Metamaterials) 层状光学纳米结构（超材料）中的光子共振隧道效应

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060082

M. V. Davidovich

引用次数: 0

Structure and Electrical Properties of Con(CoO)100 – n Thin-Film Composites Con(CoO)100 - n 薄膜复合材料的结构和电气性能

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060458

A. V. Sitnikov, V. A. Makagonov, Y. E. Kalinin, S. B. Kushchev, V. A. Foshin

{"title":"Structure and Electrical Properties of Con(CoO)100 – n Thin-Film Composites","authors":"A. V. Sitnikov, V. A. Makagonov, Y. E. Kalinin, S. B. Kushchev, V. A. Foshin","doi":"10.1134/S1063784224060458","DOIUrl":"10.1134/S1063784224060458","url":null,"abstract":"The electrical properties of Con(CoO)100 – n composite thin films obtained by ion-beam sputtering of a composite target in an argon atmosphere and a mixed atmosphere of argon and oxygen (98% Ar + 2% O2) have been studied. It has been established that if oxygen is introduced into the deposition chamber, the position of the percolation threshold shifts towards lower concentrations of the metal phase. It is associated with the special morphology of the films, when small metal Co nanoparticles are located along the boundaries of larger CoO particles, as well as a decrease in the size of inclusions of the metal phase. Studies of the temperature dependences of the electrical resistivity of synthesized Con(CoO)100 – n films have shown that when the metal phase content is up to the percolation threshold the dominant mechanism of charge transfer in the temperature range of 80−140 K is the variable range hopping mechanism of conduction through localized states near the Fermi level, replaced by the nearest neighbors conductivity in the temperature range of 140–300 K. For beyond the percolation threshold Con(CoO)100 – n thin films, the conductivity is determined by a network of metal granules and is characterized by a positive temperature coefficient of electrical resistance.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1813 - 1822"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414110","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

Positron Production Due to Interaction of Cosmological Background Photons 宇宙背景光子相互作用导致的正电子产生

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060343

A. N. Popov, D. P. Barsukov, A. V. Ivanchik, S. V. Bobashev

引用次数: 0

Modeling of Surface-Volumetric Charging of a Dielectric Irradiated by Electrons with Energy Range from 6 to 30 keV 能量范围为 6 至 30 千伏的电子辐照介质的表面体积电荷模型

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060501

V. M. Zykov, D. A. Neyman

{"title":"Modeling of Surface-Volumetric Charging of a Dielectric Irradiated by Electrons with Energy Range from 6 to 30 keV","authors":"V. M. Zykov, D. A. Neyman","doi":"10.1134/S1063784224060501","DOIUrl":"10.1134/S1063784224060501","url":null,"abstract":"The physico-mathematical model applied to ground tests for geomagnetic plasma exposure based on the combined consideration of surface and bulk processes of transport and charge accumulation for calculating the kinetics of charging high-resistance dielectrics irradiated by medium-energy monoenergetic electrons (from 6 to 30 keV) is proposed. The model takes into account the contribution to the charging of the dielectric by the trains of longitudinal optical phonons generated by each thermalizing primary electron with energy below the band gap of the dielectric, which supplements the induced conduction current due to the generation of electron-hole pairs. As a result, the current induced by trains of longitudinal optical phonons of the tunnel conductivity through free electron traps is introdused, as well as the current induced in the conduction band due to multiphonon ionization the electron traps by trains of longutudinal optical phonons in the region of existence of electric field. Using the example of the α-Al2O3 (sapphire) dielectric, the results of computer simulation of the internal currents distributions, charges, and electric field in the dielectric with the open surface irradiated by monoenergetic electrons with energies from 6 to 30 keV are presented according with the achievement the quasi-equilibrium in the irradiated part of the dielectric and with switching of the energy of primary electrons during the irradiation process.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1857 - 1869"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414136","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

Estimation of the Discharge Current and Extracted Current from the Penning Ion Source 估算潘宁离子源的放电电流和提取电流

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060215

M. S. Lobov, I. M. Mamedov, N. V. Mamedov, A. I. Presniakov, V. I. Zverev, D. I. Iurkov

引用次数: 0

Spectral Emissivity of Transition Metals of the X Group in the Melting Point Region X 族过渡金属在熔点区域的光谱发射率

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060197

D. V. Kosenkov, V. V. Sagadeev

引用次数: 0

Behavior of the Linearized Ballistic-Conductive Model of Heat Conduction in Three-Dimensional Space 三维空间热传导线性化弹道-导电模型的行为

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060380

S. A. Rukolaine

引用次数: 0

Investigation of the Angular Dependences of the Velocities of Ion-Beam Sputtering of Metals for the Synthesis of Mask Blanks 用于合成掩膜坯料的金属离子束溅射速度的角度依赖性研究

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S106378422406029X

M. S. Mikhailenko, A. E. Pestov, A. K. Chernyshev, N. I. Chkhalo

引用次数: 0

HD Molecules in Milky Way 银河中的高清分子

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060185

D. N. Kosenko, S. A. Balashev

引用次数: 0

Investigation of the Effect of ZnSe Evaporation Conditions Using an Ytterbium Laser on the Production of Nanoparticles by this Method and on Their Properties 利用镱激光器研究硒化锌蒸发条件对该方法生产纳米粒子及其特性的影响

IF 1.1 4区物理与天体物理

Technical Physics Pub Date : 2024-09-26 DOI: 10.1134/S1063784224060318

V. V. Osipov, V. V. Platonov, V. V. Lisenkov, K. I. Demidova, S. V. Zayats, M. P. Zykova

{"title":"Investigation of the Effect of ZnSe Evaporation Conditions Using an Ytterbium Laser on the Production of Nanoparticles by this Method and on Their Properties","authors":"V. V. Osipov, V. V. Platonov, V. V. Lisenkov, K. I. Demidova, S. V. Zayats, M. P. Zykova","doi":"10.1134/S1063784224060318","DOIUrl":"10.1134/S1063784224060318","url":null,"abstract":"Using laser evaporation method of a target with followed condensation in a flow of buffer gas (Ar or He) the preparation of ZnSe, Fe : ZnSe, Cu : ZnSe nanopowders and their properties were studied. It is shown that for the same gas pressure (100 kPa), ZnSe nanoparticles obtained in helium have a smaller average size (11 nm), than in argon (18 nm). An increase in Ar pressure from 100 to 300 kPa led to an increase in the size of nanoparticles even further 2 times. The influence of laser radiation parameters and gas parameters on productivity of nanopowders obtaining was studied process. The nanopowders had cubic and hexagonal crystalline ZnSe phases, the content of which varied within certain limits depending on gas parameters. A comparison of theoretical and experimental data suggests that a significant part of nanoparticles were formed by desublimation of vapor directly into the solid phase. The results of the first studies of pressing and sintering of ZnSe nanopowders, obtained by laser method, are shown.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1695 - 1707"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413968","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