?
Method of separate determination of high-ohmic sample resistance and contact resistance
Modern Electronic Materials. 2015. Vol. 1. No. 3. P. 93–96.
Golubiatnikov V. A., Grigoryev F. I., Lysenko A. P., Strogankova N. I., Belov A., Kanevsky V.
A method of separate determination of two-pole sample volume resistance and contact resistance is suggested. The method is applicable to high-ohmic semiconductor samples: semi-insulating gallium arsenide, detector cadmium-zinc telluride (CZT), etc. The method is based on near-contact region illumination by monochromatic radiation of variable intensity from light emitting diodes with quantum energies exceeding the band gap of the material. It is necessary to obtain sample photo-current dependence upon light emitting diode current and to find the linear portion of this dependence. Extrapolation of this linear portion to the Y-axis gives the cut-off current. As the bias voltage is known, it is easy to calculate sample volume resistance. Then, using dark current value, one can determine the total contact resistance. The method was tested for n-type semi-insulating GaAs. The contact resistance value was shown to be approximately equal to the sample volume resistance. Thus, the influence of contacts must be taken into account when electrophysical data are analyzed. & 2016 The National University of Science and Technology MISiS. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Андреева А. А., Utkin B., Grachev N. N. et al., В кн.: Шарыгинские чтения. Шестая международная научная конференция веду щих научных школ в области радиолокации, радионавигации и радио- электронных систем передачи информации.: Томск: Издательство Томского государственного университета систем управления и радиоэлектроники, 2024. С. 135–140.
A comparison of methods for constructing mathematical models of electrical contacts for studying the formation of contact radio interference is carried out. In particular, three main models of contact resistance control are considered, as well as their analysis and recommendations for their use in solving the problem of predicting contact radio interference are proposed. ...
Added: June 29, 2025
Korneeva Y. P., Dryazgov M. A., Porokhov N. V. et al., Superconductor Science and Technology 2024 Vol. 37 No. 10 Article 105009
Wepresent a study of thin-film Mo resistors for NbN electronics operating at cryogenic temperatures. The key step is the 0.5–1.5 keV ion cleaning–activation of NbN before Mo deposition, which allows us to obtain a high-quality Mo/NbN interface. This, together with an additional Al bandage layer in the area of the contact pads, allows us to ...
Added: March 17, 2025
Kagan M., Silkin V. M., Efremov D. V., / Series arXiv "math". 2024. No. 2411.12836.
In this study, we analyze the dielectric function of high-Tc cuprates as a function of doping level, taking into account the full energy band dispersion within the CuO2 monolayer. In addition to the conventional two-dimensional (2D) gapless plasmon mode, our findings reveal the existence of three anomalous branches within the plasmon spectrum. Two of these branches ...
Added: November 27, 2024
Influence of anisotropy on the study of critical behavior of spin models by machine learning methods
Sukhoverkhova D., Shchur L., / Series arXiv "math". 2024. No. 2410.14523.
In this paper, we applied a deep neural network to study the issue of knowledge transferability between statistical mechanics models. The following computer experiment was conducted. A convolutional neural network was trained to solve the problem of binary classification of snapshots of the Ising model's spin configuration on a two-dimensional lattice. During testing, snapshots of ...
Added: October 21, 2024
Mozolenko V., Fadeeva Marina, Shchur L., / Series arXiv "math". 2024. No. 2405.10865.
The development of new algorithms for simulations in physics is as important as the development of new analytical methods. In this paper we present a comparison of the recently developed microcanonical population annealing (MCPA) algorithm with the rather mature Wang-Landau algorithm. The comparison is performed on two cases of the Potts model exhibiting a first ...
Added: May 20, 2024
Kagan M., Аксёнов С. В., / Series Research Square "Research Suqare". 2024. No. 1.
We study different resonances (first of all of the Fano type) in the interference device formed by the Aharonov-Bohm ring with superconducting (SC) wire in the topologically nontrivial state playing a role of a bridge between top and bottom arms. We analyze Majorana modes on the ends of the SC wire and show that the collapse of the ...
Added: April 10, 2024
Ребров Я. В., Glazkov V., Murtazoev A. F. et al., / Series cond-mat "arxiv.org". 2023.
Nabokoite family compounds ACu7(TeO4)(SO4)5Cl (A=Na, K, Cs, Rb) are one of the candidates for the evasive spin-liquid state predicted for highly-frustrated square kagome lattice (SKL). Their magnetic subsystem includes SKL layers decorated by additional copper ions. All members of this family are characterized by quite high Curie-Weiss temperatures (∼80−200 K), but magnetic ordering was reported ...
Added: January 29, 2024
Shurakov A., Kaurova N., Belikov I. et al., / Series Physics "arxiv.org". 2022.
In this paper, we report on the method of nondestructive quality control that can be used in fabrication of GaAs high-speed electronics. The method relies on the surface potential mapping and enables rigid in vivo analysis of transport properties of an active electronic device incorporated into a complex integrated circuit. The study is inspired by ...
Added: September 15, 2023
Pugach N., Safonchik M. O., Belotelov V. et al., / Series "cond-mat". 2022. No. 2110.00369.
A detailed investigation of a superconducting spin-triplet valve is presented. This spin-valve consists of a superconducting film covering a metal with an intrinsic spiral magnetic order, which could result from competing isotropic exchanges or, if the crystal lattice breaks central symmetry, from asymmetric Dzyaloshinskii-Moriya exchange. Depending on the anisotropy, such a metal may change its ...
Added: November 16, 2022
Novikov S. V., / Series cond-mat "arxiv.org". 2022. No. 2209.14955.
Charge transport in amorphous semiconductors having spatially correlated exponential density of states (DOS) has been considered for the arbitrary behavior of the correlation function of random energies. Average carrier velocity is exactly calculated for the quasi-equilibrium (nondispersive) transport regime. For the symmetric exponential DOS with exponential tails for low and high energies and non-positive correlation ...
Added: November 1, 2022
Boris Utkin, Nikolay Grachev, Vladimir Matveev, , in: 2022 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM).: Sochi: IEEE, 2022. P. 310–315.
Added: September 14, 2022
Ikhsanov R., Mazur E., Kagan M., / Series "Working papers by Cornell University". 2022. No. 2202.01452.
At present, the task of searching for compounds with a high superconducting transition temperature is a very relevant scientific direction. Usually, the calculation of is carried out by numerically solving the system of Eliashberg equations. In this paper, a set of programs for solving this system written in various forms on the imaginary axis is ...
Added: February 4, 2022
Budkov Y., Zavarzin S., Kolesnikov A. L., Journal of Physical Chemistry C 2021 Vol. 125 No. 38 P. 21151–21159
We formulate a general mean-field theory for a flat electric double layer in ionic liquids and electrolyte solutions with ions possessing static polarizability and a permanent dipole moment on a charged electrode. We establish a new analytical expression for electric double-layer differential capacitance, determining it as an absolute value of the ratio of the local ...
Added: September 16, 2021
Sanina N., Isaeva U., Utenyshev A. et al., Inorganica Chimica Acta 2021 Vol. 527 Article 120559
A new inhibitor of phosphodiesterase (PDE), i.e., nitric oxide (NO) donor, a water soluble DNIC Na[Fe(C7H5N4S)2(NO)2]⋅2.5H2O (1), has been synthesized. The structure of the new complex, its physical-chemical properties in the solid state and in solutions have been studied experimentally (X-ray analysis, IR, UV-Vis, Mossbauer spectroscopy, mass-spectrometry, and amperometry) and theoretically (quantum-chemical modeling by DFT ...
Added: September 16, 2021
Lysenko A. P., E. A. Odintsova, Белов А. Г. et al., Russian Physics Journal 2018 Vol. 60 No. 12 P. 2209–2217
Photoconductivity has been thoroughly studied for a long time. However, most researchers have examined
photoconductivity of semiconductors while illuminating the entire surface of samples. The present paper
examines the effect of local exposure that ensures a high level of injection of free charge carriers upon the
conductivity of high-ohmic cadmium telluride and semi-insulating gallium arsenide samples and upon ...
Added: April 17, 2018
Lysenko A. P., Golubiatnikov V. A., Grigoryev F. I. et al., В кн.: XXIII Международная научно-техническая конференция по фотоэлектронике и приборам ночного видения 28-30 мая 2014, Москва, Россия.: М.: ОАО "НПО "Орион", 2014. Гл. 64 С. 441–444.
It is known that illumination of the sample vysokomnogo semiconductor material significantly changes its electrical properties. It is shown that the contact regions of the sample illumination with monochromatic radiation intensity adjustable with a photon energy greater than the width of the forbidden zone of the test material, reduces the resistance of the sample, in ...
Added: October 22, 2014
Lysenko A. P., Golubiatnikov V. A., Grigoryev F. I. et al., Instruments and Experimental Techniques 2014 Vol. 57 No. 5 P. 622–626
It is shown that the Van der Pau method can be used under illumination of the sample nearcon tact region with monochromatic radiation of variable intensity with a quantum energy that exceeds the inves tigatedmaterial band gap. A modified Van der Pau technique for measuring such highresistance semicon ductor parameters as the electrical resistivity and ...
Added: September 10, 2014
Lysenko A. P., Golubiatnikov V. A., Grigoryev F. I. et al., Приборы и техника эксперимента 2014 № 5 С. 115–119
The application of Van der Pau method is shown to be suitable under sample near-contact region illumination by monochromatic radiation of variable intensity with quantum energy exceeding band gap of investigated material. Van der Pau modified technique of measuring such high-ohmic semiconductor parameters as electrical resistivity, free carrier concentration and mobility, is suggested. This technique ...
Added: June 22, 2014
Lysenko A. P., Grigoryev F. I., Strogankova N. I. et al., Instruments and Experimental Techniques 2014 Vol. 57 No. 3 P. 326–329
Abstract—It is shown that illumination of ohmic contacts to highresistance cadmium telluride and gallium arsenide samples affects not only the transient resistance of the contact, but the bulk conductivity of samples by increasing the concentration of free charge carriers. The model explaining the increase in the volume con ductivity of the sample under the illumination ...
Added: May 19, 2014
Lysenko A. P., Grigoryev F. I., Golubiatnikov V. A. et al., Известия высших учебных заведений. Материалы электронной техники 2013 № 4 С. 63–66
The method of separate determination of two-pole sample volume resistance and contact resistance is suggested. The method described is applicable to high-ohmic semiconductor samples: semiinsulating gallium arsenide, detector cadmium-zinc telluride (CZT), etc. The method is based on near-contact region illumination by monochromatic radiation of variable intensity from light emitting diodes with quantum energy exceeding band ...
Added: January 29, 2014
Lysenko A. P., Golubiatnikov V. A., Grigoryev F. I. et al., Известия высших учебных заведений. Материалы электронной техники 2013 № 4 С. 18–21
Current-voltage characteristics were studied and measured the electrophysical parameters of cadmium telluride samples under controlled illumination near-contact regions . Established that the lighting of the areas near the contacts leads to a significant ( by two to three orders of magnitude) decrease in the resistance of the sample , the two-pole . It is shown ...
Added: January 29, 2014
Lysenko A. P., Golubiatnikov V. A., Grigoryev F. I. et al., Заводская лаборатория. Диагностика материалов 2014 Т. 80 № 1 С. 35–38
The attempt is made to decrease transition resistance of ohmic contacts to high-ohmic semiconductors (such as cadmium telluride and semi-insulating gallium arsenide) due to extra free carrier concentration creating in near-contact region by optical stimulation. Various tested construction variants of such contacts are presented in this paper. The illumination is shown to be useful for ...
Added: January 29, 2014