In situ x-ray reflectivity for thin-film deposition monitoring and control
Solid state Technology. 1999. Vol. 42. No. 5. P. 53-58.
Smirnov I. S., Kondrashov P. E., Baranov A. M.
Research target: Physics
Priority areas: engineering science
, , et al., IEEE Transactions on Applied Superconductivity 2013 Vol. 23 No. 3 P. 2201204
In this paper, we present our approaches to the development of fiber-coupled superconducting single photon detectors with enhanced photon absorption. For such devices we have measured detection efficiency in wavelength range from 500 to 2000 nm. The best fiber coupled devices exhibit detection efficiency of 44.5% at 1310 nm wavelength and 35.5% at 1550 nm ...
Added: March 7, 2014
, , et al., Письма в Журнал экспериментальной и теоретической физики 2016 Т. 104 № 9 С. 651-657
В работе исследовалась магнетопроводимость тонких пленок Bi2Se3 с защитным слоем Se, выра щенных на подложках (111) BaF2. Наблюдаемая отрицательная магнетопроводимость в малых полях, обусловленная эффектом слабой антилокализации, так же как и осцилляции Шубникова–де Гааза в больших полях, определяется только перпендикулярной к плоскости пленки компонентой магнитного поля. Полученные экспериментальные результаты могут быть разумно объяснены в предположении на личия в исследуемых пленках ...
Added: December 6, 2016
, , et al., Физика твердого тела 2020 Т. 62 № 9 С. 1375-1378
At ultra-low temperatures, the transport properties of two types of quasi-one-dimensional superconducting microstructures were studied: thin channels tightly packed in the form of a meander, and chains of superconductor-insulator-superconductor tunnel contacts. Both types of microstructures demonstrated high values of high-frequency impedance and / or dynamic resistance. The study opens up the possibility of using such ...
Added: July 21, 2020
, , , Известия Уфимского научного центра РАН 2021 № 1 С. 106-110
This research was performed using thin superconducting strips in the shape of tightly packed meanders made of niobium nitride (NbN) ultrathin superconducting strips about 100 nm wide, 5 nm thick and up to 100 μm long. The structures revealed the effect of high kinetic inductance at temperatures lower than the critical temperature. Consideration was given to the temperature ...
Added: May 27, 2021
Структурные и диэлектрические свойства кристаллов и пленок органического сегнетоэлектрика 2-метилбензимидазола
, , et al., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2018 № 3 С. 52-58
Single crystals and films of 2-methylbenzimidazole were obtained by evaporation from an alcohol solution. Films are a texture with a predominant orientation of the pseudo-tetragonal axis in the film plane. The blocks are split spherulite-type crystals in which the pseudotetragonal axis rotates around the center of the block. Dielectric hysteresis loops in the temperature range ...
Added: November 10, 2020
Тезисы докладов Всероссийского совещания по использованию рассеяния нейтронов и синхротронного излучения в конденсированных средах (РНСИ-КС-2014)
СПб. : ФГБУ "ПИЯФ" НИЦ "Курчатовский институт", 2014
This edition presents abstracts of the reports of the Meeting and Youth Conference on Neutron Scattering and Synchrotron Radiationin Condensed Matte (NSSR-CM-2014)r ...
Added: March 11, 2015
Injection Modification of Multilayer Dielectric Layers of Metal - Oxide - Semiconductor Structures at Different Temperatures
, , et al., Inorganic Materials: Applied Research 2014 Vol. 5 No. 2 P. 129-132
The charge state change of MOS structures with multilayer dielectric films SiO2–PSG under highfield injection modification at different temperatures is studied in this article. The effect of temperature on the thermal stability of the negative charge component used to adjust the threshold voltage of MOS transistors is investigated. It is found that the performance of ...
Added: August 4, 2014
, , et al., Журнал экспериментальной и теоретической физики 2015 Т. 147 № 6 С. 1204-1219
The effect of the chromium layer thickness on the magnetic state of an [Fe/Cr/Gd/Cr]n multilayer structure is studied. A series of Fe/Cr/Gd structures with Cr layer thicknesses of 4–30 Å is studied by SQUID magnetometry and ferromagnetic resonance in the temperature range 4.2–300 K. The obtained experimental results are described in terms of an effective ...
Added: June 9, 2015
, , et al., Scripta Materialia 2021 Vol. 194
We have studied the solid state dewetting of ten monolayer sthick Ag film deposited on periodicall ypatterned Si(557) surface. The annealing of the system in the ultra-high vacuum at the temperatures between 300 and 400°C resulted in full agglomeration of the film and formation of faceted single crystalline Ag nanoparticles exhibiting bimodal size distribution.We demonstrated ...
Added: December 10, 2020
, , et al., Кристаллография 2015 Т. 60 № 64 С. 630-633
We report the results of comparative study of the structure of tellurium films obtained by crystallization from the gas phase on substrates of sapphire single crystals and mica (Muscovite). ...
Added: March 12, 2015
Influence of Temperature on High-Field Injection Modification of MIS Structures with Thermal SiO2 Films Doped with Phosphorus
, , et al., High Temperature Material Processes 2019 Vol. 23 No. 4 P. 303-312
The paper presents a study of the processes of electron trapping in metal–insulator–semiconductor (MIS) structures with gate dielectric based on silicone dioxide doped with phosphorus under high-field Fowler–Nordheim tunnel injection of electrons in a range of temperatures from 293 to 373 K. We have ascertained that the negative charge being trapped in phosphosilicate glass (PSG) consisted of two components ...
Added: January 30, 2020
, , et al., IEEE Transactions on Applied Superconductivity 2015 Vol. 25 No. 3 P. 1-4
We have measured the energy relaxation times from the electron bath to the phonon bath in strongly disordered TiN films grown by atomic layer deposition. The measured values of τeph vary from 12 to 91 ns. Over a temperature range from 3.4 to 1.7 K, they follow T-3 temperature dependence, which are consistent with values ...
Added: October 15, 2015
, , et al., Физика и химия обработки материалов 2013 № 5 С. 51-57
A technique for pulsed plasma spraying of optical metallic films on the surface of dielectric substrate (glass) using a Plasma Focus type setup has been proposed. This method does not lead to noticeable degradation of the substrate surface. Optically thin composite films on the base of Ti were produced. Structure of the films was studied ...
Added: November 7, 2013
, , et al., IOP Conference Series: Materials Science and Engineering (MSE) 2020 Vol. 781 No. 1 P. 012011-1-012011-5
Spectral characteristics of WSi and NbN superconducting single-photon detectors with different surface resistance and width of nanowire strips have been investigated in the wavelength range of 1.3-2.5 µm. WSi structures with narrower strips demonstrated better performance for detection of single photons in longer wavelength range. The difference in normalized photon count rate for such structures ...
Added: December 10, 2020
Экспериментальное исследование воздействия адсорбата на формирование рельефа поверхности тонких металлических пленок в сканирующей зондовой микроскопии
, , Наноинженерия 2013 № 6(24) С. 32-35
Main regularities of the influence of the air adsorbate on the interpretation of images of thin metal films were experimentally determined in the scanning tunneling microscopy (STM). Modification of the surface relief of a thin film of Pt was made in air.Effect of formation of surface structures of 50-100 nm, a cluster of polarized adsorbate ...
Added: July 16, 2013
, , et al., Crystallography reports 2015 Vol. 60 No. 4 P. 616-619
The epitaxial growth of tellurium films by chemical vapor deposition is investigated. It is established that, under thermochemical activation conditions, tellurium films grow from vapor phase in the (10 $$\bar 1$$0) plane, parallel to the (001) muscovite substrate and the (0001) sapphire substrate. It is demonstrated that tellurium films on (001) muscovite substrates are more ...
Added: September 8, 2015
Small-angle neutron scattering in the fully polarized phase of noncollinear magnets with interfacial-like Dzyaloshinskii-Moriya interaction
, Physical Review B: Condensed Matter and Materials Physics 2022 Vol. 106 No. 17 Article 174408
Spin waves in noncollinear magnets with Cnv symmetry are discussed in the context of inelastic neutron scattering in small-angle scattering geometry. In the framework of aminimal model including exchange coupling, Dzyaloshinskii-Moriya interaction (DMI), and single-ion anisotropy, we consider the system properties at moderate external magnetic fields and in the high-field fully polarized phase. In the latter case, the ...
Added: November 21, 2022
X-ray reflectivity prove of Langmuir-Blodgett superlattice formation of lead and yttrium stearate alternative bilayers
, , et al., Materials Science and Engineering C 2002 Vol. 22 P. 129-133
Added: March 19, 2013
, , et al., Soft Matter 2018 Vol. 14 P. 7174-7179
In this paper we report on observations of unusual linear defects forming spontaneously in polar freestanding smectic-C* films near the temperatures of thinning transitions. At high temperature a periodic structure of defects becomes the ground state of the system. We found that the defects are characterized by continuous rotation of the molecular orientation with a ...
Added: November 21, 2019
, , et al., Письма в Журнал экспериментальной и теоретической физики 2016 Т. 104 № 12 С. 880-887
Applying a model-independent approach to the electron density profile reconstruction according to X-ray reflectivity, we have traced the process of ordering a multilayer of DSPC bilayers on silica sol substrate. In our opinion, electroporation bilayers in the field of anionic silica nanoparticles dramatically accelerates the process of saturation of Na+ and H2O, which explains how ...
Added: December 15, 2016
, , Physical Review B: Condensed Matter and Materials Physics 2016 Vol. 93 No. June P. 235417
Using the Kubo formalism we have calculated the local dynamic conductivity of a bulk, i.e., three-dimensional (3D), Dirac semimetal (BDS). We obtain that at frequencies lower than Fermi energy the metallic response in a BDS film manifests in the existence of surface-plasmon polaritons, but at higher frequencies the dielectric response is dominated and it occurs ...
Added: September 14, 2016
On the structure of Langmuir-Blodgett superlattices of yttrium and lead stearate alternative bilayers
, , et al., Physica B: Condensed Matter 2005 No. 357 P. 130-135
Added: March 19, 2013
, , et al., Beilstein Journal of Nanotechnology 2022 Vol. 13 P. 1551-1557
Polydiphenylenephthalide (PDP) belongs to the class of carbocyclic organic electroactive polymers, which exhibit electric conductive properties when an external electric field and/or mechanical stress is applied. In this work, the transport properties of thin-film layered lead–PDP–lead structures were experimentally studied in a wide temperature range. At sufficiently high temperatures, the current voltage characteristics are satisfactorily described in terms of ...
Added: November 24, 2022
, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2019 Vol. 100 No. 2 P. 022705
We explain theoretical peculiarities of the smectic-A–hexatic-B equilibrium phase coexistence in a finite-temperature range recently observed experimentally in free-standing smectic films [I. A. Zaluzhnyy et al., Phys. Rev. E 98, 052703 (2018)]. We quantitatively describe this unexpected phenomenon within Landau phase transitions theory assuming that the film state is close to a tricritical point. We ...
Added: November 20, 2019