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Перегляд Відділення фізики і астрономії за темою "Электpонные свойства металлов и сплавов"

Репозиторій DSpace/Manakin

Перегляд Відділення фізики і астрономії за темою "Электpонные свойства металлов и сплавов"

Сортувати за: Порядок: Результатів:

  • Bifurcations and a chaos strip in states of long Josephson junctions 
    Yugay, K.N.; Blinov, N.V.; Shirokov, I.V. (Физика низких температур, 1999)
    Stationary and nonstationary, in particular, chaotic states in long Josephson junctions are investigated. Bifurcation lines on the parametric bias current-external magnetic field plane are calculated. The chaos strip along ...
  • Break-junction experiments on the Kondo semiconductor CeNiSn: tunnelling versus direct conductance 
    Naidyuk, Yu.G.; Gloos, K.; Takabatake, T. (Физика низких температур, 2000)
    The rare-earth Kondo semiconductor CeNiSn is investigated by point-contact and tunneling spectroscopy using mechanically controllable break junctions. I(V) characteristics and their derivatives are recorded for contacts ...
  • Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites 
    Mikhaylov, V.I.; Dyakonov, V.P.; Zubov, E.E.; Pashchenko, A.V.; Varyukhin, V.N.; Shtaba, V.A.; Szewczyk, A.; Abal’oshev, A.; Piotrowski, K.; Dyakonov, K.; Lewandowski, S.J.; Szymczak, H. (Физика низких температур, 2006)
    The pressure, magnetic field and excess manganese effects on transport and magnetoresistance effect (MRE) have been studied in both the epitaxial films and bulk ceramics of manganites (La₀.₇Ca₀.₃)₁₋xMn₁₊xO₃₋y (x = 0–0.2). ...
  • 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 ...
  • Dynamics of transformation of conduction electrons into charge-density-wave soliton at low temperatures 
    Kovavev, A.S.; Pershin, Yu.V.; Rozhavsky, A.S. (Физика низких температур, 1996)
    The analytical model which describes the dynamics of transformation of conduction electrons into nonlinear charge-carrying excitations of CDW in quasi-one-dimensional Peierls-Frohlich conductors is formulated and studied ...
  • Effect of pressure on the Fermi surface and electronic structure of ErGa₃ 
    Pluzhnikov, V.B.; Grechnev, G.E.; Fomenko, Yu.V.; Czopnik, A.; Eriksson, O. (Физика низких температур, 1999)
    The Fermi surface and cyclotron masses of the ErGa₃ compound are studied by means of the de Haas-van Alphen technique under pressure. Concurrently, the electronic structure is calculated ab initio for the ferromagnetic ...
  • Effects of alloying and pressure on magnetic properties of itinerant intermetallic compound UFe₂ 
    Panfilov, A.S.; Svechkarev, I.V.; Diko, P.; Mihalik, M.; Zentko, A. (Физика низких температур, 1999)
    The ferromagnetic state of the itinerant compound UFe₂ correlated with a peak in the density of states at the Fermi level is well known to be strongly suppressed by replacing Fe with other 3d elements. To separate the ...
  • 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 ...
  • Electronic structure and magneto-optical Kerr effect in UCuAs₂ 
    Antonov, V.N.; Harmon, B.N.; Horpynyuk, O.; Yaresko, A.N. (Физика низких температур, 2003)
    The optical and magneto-optical (MO) spectra of the ternary compound UCuAs₂ are investigated theoretically from first principles, using the fully relativistic Dirac linear-muffin-tin-orbital band structure method. The ...
  • Influence of a single defect on the conductance of a tunnel point contact between a normal metal and a superconductor 
    Avotina, Ye.S.; Kolesnichenko, Yu.A.; van Ruitenbeek, J.M. (Физика низких температур, 2008)
    We have investigated theoretically the conductance of a normal–superconductor point contact in the tunnel limit and analyzed the quantum interference effects originating from the scattering of quasi-particles by point-like ...
  • Influence of the shape of the electrodes on the tunnel current 
    Keijsers, R.J.P.; Voets, J.; Shklyarevskii, O.I.; van Kempen, H. (Физика низких температур, 1998)
    The tunnel resistance of highly stable, mechanically controlled break junctions of Al, Au, Cu, Pb, Ni, Pt, and Pt-Ir, have been recorded as a function of the electrode spacing over 6-7 decades. Clear deviations from the ...
  • Kinetic equations in the theory of normal Fermi liquid 
    Kondratyev, A.S.; Siddique, I. (Физика низких температур, 2008)
    On the bases of the improved approximation for the spectral function of one-particle states the Landau– Silin kinetic equations for the normal Fermi liquids of neutral and electrically charged particles are shown to be ...
  • Level statistics for quantum Hall systems 
    Kagalovsky, V.; Horovitz, B.; Avishai, Y. (Физика низких температур, 2005)
    Level statistics for two classes of disordered systems at criticality are analyzed in terms of different realizations of the Chalker–Coddington network model. These include: 1) Re-examination of the standard U(1) model ...
  • Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts 
    Naidyuk, Yu. G.; Kvitnitskaya, O. E.; Jansen, A. G. M.; Wyder, P.; Geibel, C.; Menovsky, A. A. (Физика низких температур, 2001)
    The antiferromagnetic (AFM) state has been investigated in the three heavy-fermion compounds URu₂Si₂,UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5-20 K and magnetic fields ...
  • Metallic point contacts formed by physical vapor deposition and chemical vapor deposition: microscopy study and point-contact spectroscopy 
    Gribov, N.N.; Caro, J.; Oosterlaken, T. G. M.; Radelaar, S. (Физика низких температур, 1997)
    We have made an electron-microscopy study of nanoholes in membranes in successive stages of metal deposition using two different techniques: physical vapor deposition (PVD) and chemical vapor deposition (CVD). One-sided ...
  • Non-linear effects in hopping conduction of single-crystal La₂CuO₄₊δ 
    Belevtsev, B.I.; Dalakova, N.V.; Panfilov, A.S. (Физика низких температур, 1998)
    The unusual non-linear effects in hopping conduction of single-crystal La₂CuO₄₊δ with excess oxygen has been observed. The resistance is measured as a function of the applied voltage U (voltage controlled regime) in the ...
  • Nonlunear resonant tunnelling through doubly degenerate local state and strong electron-phonon interaction 
    Ermakov, V.N. (Физика низких температур, 1999)
    In an approach of low transparency of the barrier the tunneling of electrons through doubly degenerate local state has been considered with allowance for the Coulomb and electron-phonon interactions. It is shown that in ...
  • Observation of the strain-driven charge-ordered state in La₀.₇Ca₀.₃MnO₃₋δ thin film with oxygen deficiency 
    Prokhorov, V.G.; Komashko, V.A.; Kaminsky, G.G.; Svetchnikov, V.L.; Zandbergen, H.W.; Lee, Y.P.; Park, J.S.; Kim, K.W. (Физика низких температур, 2003)
    The magnetic and transport properties of La₀.₇Ca₀.₃MnO₃₋δ films with an oxygen deficiency (δ≃ 0.1) and a La₀.₉Ca₀.₁MnO₃ film with the stoichiometric oxygen content are investigated in a wide temperature range. It is shown ...
  • Point-contact-spectroscopy evidence of quasi-particle interactions in RNi₂B₂C(R=Ho, Y) 
    Jansen, A.G.M.; Wyder, P.; Yanson, I.K.; Fisun, V.V.; Canfield, P.C.; Cho, B.K.; Tomy, C.V.; McK. Paul, D. (Физика низких температур, 1997)
    The point-contact (PC) d²V/dI²-spectra of HoNi₂B₂C and YNi₂B₂C reveal structure at applied voltages corresponding to the phonon frequencies. At about 4 meV a maximum is observed in the phonon density of states by analogy ...
  • Point-contact-spectroscopy investigation of the Kondo size effect in CuCr and AuFe alloys 
    Fisun, V.V.; Yanson, I.K.; Mydosh, J.A.; van Ruitenbeek, J.M. (Физика низких температур, 2000)
    Size effects in Kondo scattering are studied on CuCr and AuFe alloys (TK=2 K and 0.2 K, respectively) by applying point-contact spectroscopy in break-junction type contacts. It is shown that as the contact diameter is ...

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