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Перегляд Физика низких температур, 2007, том 33 за назвою

Репозиторій DSpace/Manakin

Перегляд Физика низких температур, 2007, том 33 за назвою

Сортувати за: Порядок: Результатів:

  • Energy of a single electron in gaseous media 
    Shikin, V.B.; Nazin, S.S. (Физика низких температур, 2007)
    The so-called «optical» approximation in the theory of electron energy spectrum in the presence of scattering centers with positive scattering length randomly distributed with the average density ng is considered for a ...
  • Entanglement in fermionic systems at a quantum phase transition 
    Johannesson, H.; Larsson, D. (2007)
    We consider recent results on the use of the single-site entanglement measure for identifying and characterizing a quantum phase transition in systems of interacting fermions. We discuss the extension of these results to ...
  • Evolution of discrete local levels into an impurity band in solidified inert gas solution 
    Kosevich, A.M.; Feodosyev, S.B.; Gospodarev, I.A.; Grishaev, V.I.; Kotlyar, O.V.; Kruglov, V.O.; Manzhelii, E.V.; Syrkin, E.S. (Физика низких температур, 2007)
    The density of states g(w) of disordered solutions of solidified inert gases have been calculated using the Jacobian matrix method. The transformation of a discrete vibrational level into an impurity zone at a growing ...
  • Exchange broadening of EPR line in ZnO:Co 
    Sati, P.; Pashchenko, V.; Stepanov, A. (2007)
    We study the X-band EPR spectra of Co²⁺ in single crystalline Zn₁₋xCoxO (x = 0.001–0.075) thin films grown by plasma-assisted molecular beam epitaxy. By analyzing the EPR linewidth behavior we argue that the exchange-narrowing ...
  • Fine structure of critical opalescence spectra 
    Sushko, M.Ya. (Физика низких температур, 2007)
    The effect of the 1.5-scattering mechanism on the time and temperature behavior of the electric field autocorrelation function for the light wave scattered from fluids has been studied for the case where the order- parameter ...
  • From optical spectra to phase diagrams — the binary mixture N2–CO 
    Vetter, M.; Brodyanski, A.; Jodl, H.-J. (2007)
    We investigated the T–c% phase diagram of the binary system N2–CO. From changes in IR spectra of all kinds of mode excitations (phonons, vibrons) we were able to determine the temperature of phase transitions (solid–solid, ...
  • FTIR spectra and conformations of 2`-deoxyuridine in Kr matrices 
    Ivanov, A.Yu.; Karachevtsev, V.A. (Физика низких температур, 2007)
    The Fourier transform infrared spectra in the range 4000–200 cm⁻¹ of pyrimidine nucleoside 2'-deoxyuridine (dU) have been obtained in the low temperature inert Kr matrices. For the first time, instead of a usual flat ...
  • Giant super-poissonian shot noise in spin-polarized SET structures 
    Gorelik, L.Y.; Kulinich, S.I.; Shekhter, R.I.; Jonson, M.; Vinokur, V.M. (Физика низких температур, 2007)
    We study transport of spin-polarized electrons through a magnetic single-electron transistor (SET) in the presence of an external magnetic field. Assuming the SET to have a nanometer-sized central island with a single ...
  • Heat capacity and spin susceptibility of two-dimensional t–J model 
    Antsygina, T.N.; Poltavskaya, M.I.; Poltavsky, I.I.; Chishko, K.A. (Физика низких температур, 2007)
    Thermodynamic properties of the t–J model on square and triangular lattices near half-filling are investigated theoretically within an analytical approach based on the Kondo and Yamaji’s Green function decoupling scheme. ...
  • Heat transfer in crystalline clathrate hydrates at low temperatures 
    Krivchikov, A.I.; Korolyuk, O.A.; Romantsova, O.O. (Физика низких температур, 2007)
    The experimental results on the thermal conductivity k(T) of crystalline Xe, CH₄, and THF clathrate hydrates have been analyzed. In a wide region of temperatures above 2 K, k(T) exhibits a behavior typical of disordered ...
  • 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 ...
  • Infrared-active vibron bands associated with rare gas atom dopants isolated in solid parahydrogen 
    Raston, P.L.; Anderson, D.T. (Физика низких температур, 2007)
    We report high-resolution infrared absorption spectroscopic studies of the dopant-induced Q₁(0) vibron band in solid parahydrogen crystals doped with low concentrations of rare gas atoms. The frequency, lineshape, and ...
  • Intercalation of fullerite C₆₀ with N₂ molecules. An investigation by x-ray powder diffraction 
    Galtsov, N.N.; Prokhvatilov, A.I.; Dolgova, G.N.; Cassidy, D.; Gadd, G.E.; Moricca, S.; Sundqvist, B. (Физика низких температур, 2007)
    The lattice parameter a of fullerite C₆₀ intercalated with N₂ molecules is investigated in the temperature interval 6–295 K by x-ray diffraction. It is found that the interstitial molecular N₂ has a considerable effect ...
  • Interlayer tunneling and the problem of superfluidity in bilayer quantum Hall systems 
    Fil, D.V.; Shevchenko, S.I. (Физика низких температур, 2007)
    A possibility of nondissipative transmission of electrical current from the source to the load using superfluid electron-hole pairs in bilayers is studied. The problem is considered with reference to quantum Hall bilayers ...
  • Kinetic study of inelastic radiation-induced processes in rare-gas cryocrystals 
    Ogurtsov, A.N.; Masalitina, N.Yu.; Bliznjuk, O.N. (Физика низких температур, 2007)
    The processes of large-scale atomic displacements induced by exciton self-trapping were studied using the selective vacuum ultraviolet luminescence method. Models of Frenkel pairs creation in rare-gas crystals are discussed ...
  • Lattice dynamics of cryocrystals at high pressure 
    Horbenko, E.E.; Troitskaya, E.P.; Chabanenko, Val.V. (Физика низких температур, 2007)
    The lattice dynamics of cryocrystals is investigated from first principles in the framework of the Tolpygo model over a wide range of pressures. The phonon frequencies in rare-gas solids are calculated in terms of models ...
  • Magnetic and transport properties driven by lattice strain in La₀.₇Ca₀.₃MnO₃/BaTiO₃ and La₀.₇Sr₀.₃MnO₃/BaTiO₃ bilayered films 
    Prokhorov, V.G.; Komashko, V.A.; Kaminsky, G.G.; Yu, K.K.; Jun, S.J.; Park, S.Y.; Park, J.S.; Lee, Y.P.; Svetchnikov, V.L. (Физика низких температур, 2007)
    The microstructure and the magnetic and transport properties of La₀.₇Ca₀.₃MnO₃ and La₀.₇Sr₀.₃MnO₃ films deposited on a BaTiO₃ layer (LCMO/BTO and LSMO/BTO) and on a LaAlO₃ (001) single crystal (LCMO/LAO and LSMO/LAO) ...
  • Many-body interactions and high-pressure equations of state in rare-gas solids 
    Freiman, Yu.A.; Tretyak, S.M. (Физика низких температур, 2007)
    The T 0K equations of state (EOS) of rare-gas solids (RGS) (He, Ne, Ar, Kr, and Xe) are calculated in the experimentally studied ranges of pressures accounting for two- and three-body interatomic forces. Solid-state ...
  • Mechanisms of enhancement of light emission in nanostructures of II–VI compounds doped with manganese 
    Godlewski, M.; Yatsunenko, S.; Ivanov, V.Yu.; Drozdowicz-Tomsia, K.; Goldys, E.M.; Phillips, M.R.; Klar, P.J.; Heimbrodt, W. (Физика низких температур, 2007)
    Intra-shell transitions of transition metal and rare earth ions are parity forbidden processes. For Mn²⁺ ions this is also a spin forbidden process, i.e., light emission should be inefficient. Surprisingly, it was ...
  • Microwave absorption saturation and decay heating of surface electrons on liquid helium 
    Monarkha, Yu.; Konstantinov, D.; Kono, K. (Физика низких температур, 2007)
    The microwave (MW) resonance absorption and decay heating of surface electrons (SEs) on liquid ⁴He are theoretically studied for the vapor atom scattering regime. The decay heating is shown to be an essential occurrence ...

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