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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:

  • Unbinding of surface defects under the defect-selective adsorption 
    Vakarin, E.V. (Condensed Matter Physics, 2003)
    Unbinding of surface topological defects in the presence of the defectselective adsorption is investigated using a coupled Coulomb Gas – Lattice Gas model. The unbinding temperature increases with the increasing selectivity ...
  • Uncooled р(Pb₁₋xSnxSe)-n(CdSe) heterostructure-based photodetector for the far infrared spectral range 
    Lepikh, Ya.I.; Ivanchenko, I.A.; Budiyanskaya, L.M. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2014)
    The possibility to create uncooled photodetector (PD) in the region close to l = 10 μm being based on p(Pb₁₋xSnxSe)-n(CdSe) heterojunction has been conceptually and practically confirmed. Design and technology of uncooled ...
  • Understanding the mechanism of DNA threshold elongation 
    Volkov, S.N. (Физика низких температур, 2018)
    The mechanism of threshold elongation of DNA macromolecule (overstretching) is studied within the frame-work of phenomenological approach, accounting both external (stretching) and internal (conformational) dis-placement ...
  • Uniform Approximation of sgn(x) by Rational Functions with Prescribed Poles 
    Peherstorfer, F.; Yuditskii, P. (Журнал математической физики, анализа, геометрии, 2007)
  • Unipolar injection currents in Bi₄Ge₃O₁₂ crystals 
    Bochkova, T.M.; Plyaka, S.N.; Sokolyanskii, G.Ch. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2003)
    Current-voltage characteristics of bismuth orthogermanate (Bi₄Ge₃O₁₂) single crystals have been measured at different temperatures under conditions of unipolar injection of charge carriers. It has been found that conduction ...
  • Uniqueness of Solution of the Inverse Problem of Scattering Theory for a Fourth Order Differential Bundle with Multiple Characteristics 
    Orudzhev, E.G. (Журнал математической физики, анализа, геометрии, 2010)
    The system of four equations of Marchenko type allowing to restore the bundle by the scattering matrix is derived for a fourth order di®erential bundle in L₂ (0;+∞) in the case of multiple ±i roots of the main characteristic ...
  • Universal Electro-Optical Hybrid Logic Gates 
    Ekkurthi Sreenivasa Rao; Satyam, M.; Lal Kishore, K. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2008)
    An Electro-Optical Hybrid Logic Gate is defined as a circuit which accepts either electrical or optical signals and produces both electrical and optical signals. This paper explores the feasibility to develop universal ...
  • Universality and self-similar behaviour of non-equilibrium systems with non-Fickian diffusion 
    Kharchenko, D.O.; Kharchenko, V.O.; Kokhan, S.V. (Condensed Matter Physics, 2014)
    Analytical approaches describing non-Fickian diffusion in complex systems are presented. The corresponding methods are applied to the study of statistical properties of pyramidal islands formation with interacting adsorbate ...
  • Universality at the Edge for Unitary Matrix Models 
    Poplavskyi, M. (Журнал математической физики, анализа, геометрии, 2012)
    Using the results on the 1/n-expansion of the Verblunsky coe±cients for a class of polynomials orthogonal on the unit circle with n varying weight, we prove that the local eigenvalue statistic for unitary matrix models is ...
  • Universality classes and critical phenomena in confined liquid systems 
    Chalyi, A.V.; Bulavin, L.A.; Chekhun, V.F.; Chalyy, K.A.; Chernenko, L.M.; Vasilev, A.M.; Zaitseva, E.V.; Khrapijchyk, G.V.; Siverin, A.V.; Kovalenko, M.V. (Condensed Matter Physics, 2013)
    It is well known that the similar universal behavior of infinite-size (bulk) systems of different nature requires the same basic conditions: space dimensionality; number components of order parameter; the type (short- or ...
  • Universality versus nonuniversality in asymmetric fluid criticality 
    Anisimov, M.A. (Condensed Matter Physics, 2013)
    Critical phenomena in real fluids demonstrate a combination of universal features caused by the divergence of long-range fluctuations of density and nonuniversal (system-dependent) features associated with specific ...
  • Universal properties of highly frustrated quantum magnets in strong magnetic fields 
    Derzhko, O.; Richter, J.; Honecker, A.; Schmidt, H.-J. (Физика низких температур, 2007)
    The purpose of the present paper is two-fold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin antiferromagnets which admit the so-called ...
  • Unstable mixing regions in II-VI quaternary solid solutions 
    Deibuk, V.G.; Dremlyuzhenko, S.G.; Ostapov, S.E. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2005)
    The miscibility gaps and critical temperatures of the spinodal decompositions of the quaternary semiconducting epitaxial thin films CdMnHgTe and ZnMnHgTe have been calculated. Fitting the spinodal isotherms calculated from ...
  • Unstable states of the superfluid confined between rotating spheres 
    Gongadze, A.; Kiknadze, L.; Mamaladze, Yu.; Tsakadze, S. (Физика низких температур, 2003)
    The unstable states (including those related to self-accelerations of pulsars) in which the mutual friction causes an irreversible motion of vortices is considered.
  • Unusual microwave response and bulk conductivity of very thin FeSe₀.₃Te₀.₇ films as a function of temperature 
    Barannik, A.A.; Cherpak, N.T.; Yun Wu; Sheng Luo; Yusheng He; Kharchenko, M.S.; Porch, A. (Физика низких температур, 2014)
    Results of X-band microwave surface impedance measurements of FeSe₁–xTex very thin film are reported. The effective surface resistance shows appearance of peak at T ≤ Tc when plotted as a function of temperature. The authors ...
  • Unusual morphology of equimolar Ar–Kr alloys 
    Danchuk, V.V.; Solodovnik, A.A.; Mysko, N.S.; Strzhemechny, M.A. (Физика низких температур, 2015)
    The transmission high electron energy diffraction (THEED) technique was employed for studying the structure of the equimolar Ar–Kr alloy, in which the thermodynamics predicts the maximum feasibility of phase separation. ...
  • Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox 
    Dimitrov, I.K.; Si, W.D.; Ku, W.; Han, S.J.; Jaroszynski, J. (Физика низких температур, 2013)
    We report an unusual persistence of superconductivity against high magnetic fields in the iron-chalcogenide film FeTe:Ox below ≈ 2.5 K. Instead of saturating like a mean-field behavior with a single order parameter, the ...
  • Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ 
    Tovstolytkin, A.I.; Pogorilyi, A.N.; Belous, O.Z.; Yanchevski, A.G. (Физика низких температур, 2001)
    The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x ≤ 0.15) system are studied in the temperature range 77 K-300 K. All the samples investigated exhibit the ...
  • Unveiled optical properties of tetrapyrollic pigments in cryogenic environments 
    Crépin, C.; Shafizadeh, N.; Chin, W.; Galaup, J.-P.; McCaffrey, J.G.; Arabei, S.M. (Физика низких температур, 2010)
    An unexpected phenomenon was revealed in the laser induced fluorescence spectra of free-base (H₂Pc) and zinc (ZnPc) phthalocyanines trapped in rare gas and nitrogen matrices under a moderate increase in the laser intensity. ...
  • Urbach’s edge of glassy HgSe-GeSe₂ alloys: static disorder and temperature dependence of optical absorption 
    Bozhko, V.V.; Halyan, V.V.; Parasyuk, O.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2002)
    Results of investigations of spectral characteristics in the fundamental absorption range for the glass-like alloys HgSe - GeSe₂ are represented. To explain the phenomenon of anomaly growth of the static disorder, the model ...

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