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Перегляд Відділення фізики і астрономії за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення фізики і астрономії за назвою

Сортувати за: Порядок: Результатів:

  • Improvement of sensor response reproducibility and multistage recognition approach for samples with dominant components 
    Kruglenko, I.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2008)
    A multistage recognition approach is advanced for poorly classified clusters. According to this approach, if a sample is related to a cluster that is common for several samples, then further object recognition (within ...
  • Improvement of the reverse characteristics of Schottky diodes using gettering 
    Litvinenko, V.N.; Vikulin, I.М.; Gorbachev, V.E. (Технология и конструирование в электронной аппаратуре, 2019)
    The paper considers the causes and mechanisms of the influence of defects and impurities on the reverse current of the Schottky diode. The influence of two getter regions, which were created by different technologies on ...
  • Impulse Source in the Vicinity of a Convex Impedance Body: Minimization of the Field in the Shadow Region 
    Zvyagintsev, A.A.; Ivanov, A.I.; Katkov, D.V. (Радиофизика и радиоастрономия, 2002)
    The work deals with the optimization problem of impulse source field minimization in the shadow region of a convex body with variable surface impedance. The optimal impedance is searched using uniform asymptotic methods ...
  • Impurity and vacancy effects in graphene 
    Loktev, V.M.; Pogorelov, Yu.G. (Физика низких температур, 2012)
    A Green function analysis has been developed for quasiparticle spectrum of a 2D graphene sheet in presence of different types of substitutional disorder, including vacancies. The anomalous character of impurity effects ...
  • Impurity effective mass in superfluid ⁴He 
    Vakarchuk, I.O.; Babin, V.V. (Condensed Matter Physics, 1998)
    The system of bose liquid + impurity is considered. The energy spectrum, as well as effective mass of impurity is calculated. For the case of an ³He atom in superfluid <⁴He numerical calculations are performed.
  • Impurity effects in quasiparticle spectrum of high-Tc superconductors 
    Pogorelov, Yu.G.; Santos, M.C.; Loktev, V.M. (Физика низких температур, 2011)
    The revision is made of Green function methods that describe the dynamics of electronic quasiparticles in disordered superconducting systems with d-wave symmetry of order parameter. Various types of impurity perturbations ...
  • Impurity induced broadening of Drude peak in strained graphene 
    Shubnyi, V.O.; Sharapov, S.G.; S.G., Y.V. (Condensed Matter Physics, 2018)
    The recent experimental study of the far-infrared transmission spectroscopy of monolayer graphene has shown that the Drude peak width increases by more than 10% per 1% of applied mechanical strain, while the Drude weight ...
  • Impurity induced Dirac point smearing in graphene 
    Skrypnyk, Yu.V.; Loktev, V.M. (Физика низких температур, 2007)
    It is shown that in a two-dimensional system with the linear dispersion a resonance is present in the Dirac point vicinity, when the impurity perturbation magnitude exceeds the bandwidth. The corresponding spectrum rea ...
  • Impurity scattering effect on charge transport in high-Tc cuprate junctions 
    Tanaka, Y.; Asano, Y.; Kashiwaya, S. (2004)
    It is known that the zero-bias conductance peak (ZBCP) is expected in tunneling spectra of normal-metal/high-Tc cuprate junctions because of the formation of the midgap Andreev resonant states (MARS) at junction ...
  • Impurity scattering of band carriers 
    Boiko, I.I. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2010)
    Mobility of band carriers scattered on donors, partially ionized, partially neutral, at low temperatures, is considered in general and calculated for AIII-BV group crystals. It is shown that temperature dependence of ...
  • InAs quantum dots embedded into anti-modulation-doped GaAs superlattice structures 
    Masselink, W.T.; Kissel, H.; Mueller, U.; Walther, C.; Mazur, Yu.I.; Tarasov, G.G.; Lisitsa, M.P.; Lavoric, S.R.; Zhuchenko, Z.Ya. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    Photoluminescence (PL) spectra of anti-modulation-doped GaAs superlattice structures containing thin InAs films of about 1-2.5 monolayers grown on semi-insulating (001)-oriented GaAs substrates at different temperatures ...
  • InAs фотодіоди (огляд) 
    Сукач, А.В.; Тетьоркін, В.В.; Матіюк, І.М. (Оптоэлектроника и полупроводниковая техника, 2015)
    Проаналізовано сучасний стан з розробок інфрачервоних InAs фотодіодів та отримано значення їх основних технічних параметрів і характеристик. Розраховано концентраційну залежність часу життя нерівноважних носіїв заряду в ...
  • Incoherent interlayer electron hopping as a possible reason for enhanced magnetic quantum oscillations in the mixed state of a layered organic superconductor 
    Gvozdikov, V.M.; Wosnitza, J. (Физика низких температур, 2006)
    We present a theory which is able to explain enhanced magnetic quantum-oscillation amplitudes in the superconducting state of a layered organic metal with incoherent electronic transport across the layers. The incoherence ...
  • Incoherent microwave-induced resistive states of small Josephson junctions 
    Koval, Y.; Fistul, M.V.; Ustinov, A.V. (Физика низких температур, 2010)
    We report an experimental and theoretical study of low-voltage resistive states that are observed in small tunnel Josephson junctions under microwave radiation. The studied features emerge from Shapiro steps on the ...
  • Incommensurate magnetism in the coupled spin tetrahedra system Cu₂Te₂O₅Cl₂ 
    Zaharko, O.; Ronnow, H.M.; Daoud-Aladine, A.; Streule, S.; Juranyi, F.; Mesot, J.; Berger, H.; Brown, P.J. (Физика низких температур, 2005)
    Neutron scattering studies on powder and single crystals have provided new evidences for unconventional magnetism in Cu₂Te₂O₅Cl₂. The compound is built from tetrahedral clusters of S = 1/2 Cu²⁺ spins located on a tetragonal ...
  • Inconel MA758: новый наноструктурный суперсплав. Акустические и механические свойства в интервале температур 4,2—310 К 
    Ющенко, К.А.; Семеренко, Ю.А.; Табачникова, Е.Д.; Подольский, А.В.; Скибина, Л.В.; Смирнов, С.Н.; Савченко, В.С. (Металлофизика и новейшие технологии, 2013)
    В области температур 4,2—310 К впервые изучены механические и акустические свойства нового наноструктурного сплава Inconel MA758, полученного механическим легированием дисперсными наночастицами оксида иттрия Y₂O₃. Показано, ...
  • Increase of data protection level for visual information in control systems 
    Bushma, A.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2010)
    Formalized description of data transmission between technical means and an operator from the viewpoint of information security is presented. The most widely used symbolic and bar graph data representation forms are ...
  • Increase of planar homogeneity of multi-silicon structures by gettering treatments 
    Litovchenko, V.G.; Efremov, A.A.; Evtukh, A.A.; Rassamakin, Yu.V.; Klyui, M.I.; Kostylov, V.P. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2001)
    Two types of gettering treatments are considered and compared from the viewpoint of their usefulness to decrease LD scatter over the wafer in multi-silicon photovoltaic structures. It was found that in both cases high ...
  • Increasing the specularity of surface scattering of conduction electrons caused by adsorption of a hydrogen monolayer on the W(110) surface 
    Sologub, S.V.; Bordenyuk, I.V.; Kanash, O.V.; Amirov, R.H. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2016)
    Reported in this paper are the results of investigations aimed at scattering of conduction electrons at the tungsten (110) surface covered with hydrogen submonolayers, in which the effect of increasing the specularity of ...
  • Index of refraction of a photonic crystal of carbon nanotubes and homogenization of optically anisotropic periodic composites 
    Gumen, L.N.; Krokhin, A.A. (Физика низких температур, 2008)
    We consider the long-wavelength limit for a periodic arrangement of carbon nanotubes. Using the Fourier expansion method we develop an effective-medium theory for photonic crystal of aligned optically anisotropic cylinders. ...

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