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Перегляд Физика низких температур, 2008, том 34 за назвою

Репозиторій DSpace/Manakin

Перегляд Физика низких температур, 2008, том 34 за назвою

Сортувати за: Порядок: Результатів:

  • Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He 
    Fil, D.V.; Shevchenko, S.I. (Физика низких температур, 2008)
    The Bose–Einstein condensation of vacancies in a three-dimensional decorated lattice is considered. The model describes possible scenario of superfluidity of solid helium, caused by the presence of zero-point vacancies in ...
  • Bubble nucleation in a superfluid ³He–⁴He mixture induced by acoustic wave 
    Abe, H.; Saitoh, Y.; Ueda, T.; Nomura, R.; Okuda, Y.; Burmistrov, S.N. (Физика низких температур, 2008)
    We report the nucleation dynamics of bubbles induced by an acoustic wave pulse in ³He–⁴He liquid mixtures. The experiment was performed for the mixture with ³He fixed concentrations of about 4% and 25% and the pure ...
  • Collective modes in superfluid helium when there is a relative velocity between the normal and superfluid components 
    Adamenko, I.N.; Nemchenko, K.E.; Slipko, V.A.; Wyatt, A.F.G. (Физика низких температур, 2008)
    Collective modes are studied in superfluid helium when the normal and superfluid components have a relative velocity w. In this paper the general dispersion relation for first and second sound modes is obtained for ...
  • Conductance of a tunnel point contact of noble metals in the presence of a single defect 
    Avotina, Ye.S.; Kolesnichenko, Yu.A.; Roobol, S.B.; van Ruitenbeek, J.M. (Физика низких температур, 2008)
    In paper (Avotina et.al., Phys. Rev. B74, 085411 (2006)) the effect of Fermi surface anisotropy to the conductance of a tunnel point contact, in the vicinity of which a single point-like defect is situated, has ...
  • Confinement effects on decay rate of surface electron states over liquid helium 
    Sokolov, S.S.; Villas-Boas, J.M.; Monarkha, Yu.P.; Nelson Studart (Физика низких температур, 2008)
    The decay rate of excited states of surface electrons in liquid helium, trapped in a quantum dot system, is evaluated, taking into account the process of spontaneous radiation of two-ripplons with short wavelength. We ...
  • Creep and depinning of vortices in nontwinned YBa₂Cu₃O₆.₈₇ single crystal 
    Bondarenko, A.V.; Zavgorodniy, A.A.; Lotnik, D.A.; Obolenskii, M.A.; Vovk, R.V. (Физика низких температур, 2008)
    We present the results of transport study of vortex dynamics in YBa₂Cu₃O₆.₈₇ crystals in the magnetic field H||c. In low magnetic fields, H<4 kOe, the measurements were performed in the range of vortex velocities v=10⁻⁴–2 ...
  • Defects and supersolidity: effects of annealing and stress on elastic behavior of solid ⁴He 
    Syshchenko, A.; Day, J.; Beamish, J. (Физика низких температур, 2008)
    Recent measurements showed that solid ⁴He can decouple from a torsional oscillator below 200 mK and defects appear to be crucial to this behavior. Helium’s shear modulus increases in the same range, which can be understood ...
  • Dip-эффект в проводимости 2D-электронов на пленке гелия с шероховатой подложкой 
    Лейдерер, П.; Назин, С.; Шикин, В. (Физика низких температур, 2008)
    Обсуждается явление под общим названием dip-эффект в проводимости 2D-электронов на пленке гелия с шероховатой подложкой. Рассмотрен частный случай возникновения такого эффекта при движении 2D-электронов вдоль пленки гелия ...
  • Dislocation description of twins in high-temperature superconductor YBa₂Cu₃O₇₋δ 
    Boyko, V.S. (Физика низких температур, 2008)
    The thin twins theory consistently applied to the dislocation description of twins in the high-temperature superconductor YBa₂Cu₃O₇₋δ(YBCO). Quantitative analysis of the twin shape shows an agreement with theoretical ...
  • Disorder effect on the density of states in Landau quantized graphene 
    Dóra, Balázs (Физика низких температур, 2008)
    We have studied the effect of gaussian potential (on-site) and unidirectional bond disorder on the density of states (DOS) of Landau quantized graphene. The broadening of the Landau levels weakly depends on energy and ...
  • Dynamical structure factor of two-dimensional electrons over a helium film 
    Patricia Cristina Venturini; Nelson Studart; Jose Pedro Rino (Физика низких температур, 2008)
    The dynamical structure factor of a two-dimensional electrons trapped to a helium film deposited on a solid substrate is determined through molecular dynamics simulations for different film thicknesses and two substrates. ...
  • Dynamics of bound soliton states in regularized dispersive equations 
    Bogdan, M.M.; Charkina, O.V. (Физика низких температур, 2008)
    The nonstationary dynamics of topological solitons (dislocations, domain walls, fluxons) and their bound states in one-dimensional systems with high dispersion are investigated. Dynamical features of a moving kink emitting ...
  • Edge states in quantum Hall effect in graphene (Review Article) 
    Gusynin, V.P.; Miransky, V.A.; Sharapov, S.G.; Shovkovy, I.A. (Физика низких температур, 2008)
    We review recent results concerning the spectrum of edge states in the quantum Hall effect in graphene. In particular, a special attention is payed to the derivation of the conditions under which gapless edge states exist ...
  • Effect of next-to-nearest neighbor hopping on electronic properties of graphene 
    Suprunenko, Y.F.; Gorbar, E.V.; Sharapov, S.G.; Loktev, V.M. (Физика низких температур, 2008)
    In the tight-binding approximation, we take into account the next-to-nearest neighbor hopping in graphene that leads to nonrelativistic-like corrections in its low energy spectrum. The electronic density of states in a ...
  • Electron attachment to atomic hydrogen on the surface of liquid ⁴He 
    Arai, T.; Yayama, H.; Kono, K. (Физика низких температур, 2008)
    We demonstrate a possibility that helium surface electrons at cryogenic temperatures can be used as a new source of very low energy electrons. Since both electrons (e¯) and hydrogen atoms (H) are bound on liquid helium ...
  • Electronic structure and bulk properties of MB₆ and MB₁₂ borides 
    Grechnev, G.E.; Baranovskiy, A.E.; Fil, V.D.; Ignatova, T.V.; Kolobov, I.G.; Logosha, A.V.; Shitsevalova, N.Yu.; Filippov, V.B.; Eriksson, O. (Физика низких температур, 2008)
    Ab initio band structure calculations have been carried out for higher boridesMB6 andMB12. High precision measurements of the elastic constants were performed for ZrB₁₂, HoB₁₂, ErB₁₂, TmB₁₂, LuB₁₂, YB₆ and LaB₆ compounds ...
  • Electrostatic screening and Friedel oscillations in semiconducting nanotubes 
    Chaplik, A.V.; Magarill, L.I.; Vitlina, R.Z. (Физика низких температур, 2008)
    In 3D and 2D electronic systems the singular contribution to the static permittivity ε (Kohn singularity) is a small correction to the regular part of ε but it results in the leading term in asymptotic behavior of ...
  • Equations of motions and velocities of longitudinal waves for superfluid ³He–A filled aerogel in the presence 
    Kekutia, Sh.E.; Chkhaidze, N.D. (Физика низких температур, 2008)
    We have determined the dynamic equations for superfluid ³He–A filled aerogel in finite magnetic fields. The speeds of propagating longitudinal modes for this system have been found for A₁ and A phases. We have shown that ...
  • Giant magnetization of a superconductor–two-dimensional electron gas–superconductor structure 
    Romanovsky, I.A.; Bogachek, E.N.; Krive, I.V.; Landman, U. (Физика низких температур, 2008)
    Superconductivity induced phase-controlled mesoscopic magnetic effects in a two-dimensional electron gas that bridges two superconducting reservoirs are investigated. Giant paramagnetic response of the junction, occuring ...
  • Graphene and graphene-based nanostructures 
    Krive, I.V.; Loktev, V.M.; Shekhter, R.I. (Физика низких температур, 2008)
    This issue of the journal «Fizika Nizkikh Temperatur» is dedicated to the discovery of graphene — a monolayer graphite — in 2004.

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