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Перегляд Физика низких температур, 2002, том 28 за назвою

Репозиторій DSpace/Manakin

Перегляд Физика низких температур, 2002, том 28 за назвою

Сортувати за: Порядок: Результатів:

  • Anomalous magnetic and dynamic behavior in magnetoresistive compounds: origin of bulk colossal magnetoresistivity 
    Chechersky, V.; Nath, A. (Физика низких температур, 2002)
    We present the results of our extensive Mössbauer effect studies carried out on a wide variety of mixed valence manganites as well as other types of magnetoresistive materials, including pyrochlore Tl₂Mn₂O₇ and the ...
  • Direct evidence for the occurrence of superconductivity in the magnetic compound YFe₄Al₈ 
    Rybaltchenko, L.F.; Wyder, P.; Jansen, A.G.M.; Dmitriev, V.M.; Prentslau, N.N.; Suski, W. (Физика низких температур, 2002)
    For the first time we present the direct evidence for superconductivity in the ternary magnetic compound YFe₄Al₈ with the ThMn₁₂ type structure found via point-contact (PC) experiments on contacts between silver needle and ...
  • Effect of light illumination on antiferromagnet-metamagnet phase transitions in the garnet Ca₃Mn₂Ge₃O₁₂ 
    Bedarev, V.A.; Gapon, V.I.; Gnatchenko, S.L.; Baran, M.; Szymczak, R.; Desvignes, J.M.; Gall, H. Le (Физика низких температур, 2002)
    The effect of linearly polarized light illumination on the metamagnetic phase transition in the antiferromagnetic garnet Ca₃Mn₂Ge₃O₁₂ is studied.
  • Electronic excitations and correlations in quantum bars 
    Kuzmenko, I.; Gredeskul, S.; Kikoin, K.; Avishai, Y. (Физика низких температур, 2002)
    The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard ...
  • Electronic Raman scattering through a stripe ordering transition in La₂₋xSrxNiO₄ 
    Gnezdilov, V.P.; Pashkevich, Yu. G.; Yeremenko, A.V.; Lemmens, P.; Güntherodt, G.; Tranquada, J.M.; Buttrey, D.J.; Nakajima, K. (Физика низких температур, 2002)
    We describe the results of electronic Raman scattering experiments in two differently doped single crystals of La₂₋xSrxNiO₄ (x=0.225 and 1/3). In B₁g symmetry a crossover from weakly interacting to pseudogap-like behavior ...
  • Electronic structure and magneto-optical Kerr effect in the compound UCuP₂ 
    Horpynyuk, O.; Nemoshkalenko, V.V.; Antonov, V.N.; Harmon, B.N.; Yaresko, A.N. (Физика низких температур, 2002)
    The optical and magneto-optical (MO) spectra of the fernary compound UCuP₂ are investigated from first principles, using the fully relativistic Dirac linear-muffin-tin-orbital band structure method and density-functional ...
  • Elementary excitations in solid oxygen 
    Freiman, Yu. A.; Jodl, H.J. (Физика низких температур, 2002)
    Theoretical results on lattice excitations in solid oxygen at equilibrium vapor pressure are reviewed with the emphasis on the behavior of phonons, librons, and magnons in the orientationally and magnetically ordered α ...
  • Exchange interaction and magnetoresistance in La₂/₃Ca₁/₃MnO₃ : experiment and models 
    Beznosov, A.B.; Belevtsev, B.I.; Fertman, E.L.; Desnenko, V.A.; Naugle, D.G.; Rathnayaka, K.D. D.; Parasiris, A. (Физика низких температур, 2002)
    The magnetization M(T) and electrical resistivity ρ(T) of a La₂/₃Ca₁/₃MnO₃ film have been studied in the temperature range 5 K⩽T⩽320 K in the magnetic field intervals 10 Oe⩽H⩽400 Oe and 0⩽H⩽50 kOe, respectively. It is found ...
  • Fluctuation conductivity in Y-Ba-Cu-O films with artificially produced defects 
    Solovjov, A.L. (Физика низких температур, 2002)
    The fluctuation-induced conductivity (paraconductivity) measured in YBa₂Cu₃O₇₋d (YBCO) films grown on 10° miscut SrTiO₃ (001) substrates is analyzed using various theoretical models describing weak fluctuations in high-Tc ...
  • Giant resistance switching effect in nano-scale twinned La₀.₆₅Ca₀.₃₅MnO₃ film 
    Prokhorov, V.G.; Kaminsky, G.G.; Komashko, V.A.; Lee, Y.P.; Tovstolytkin, A.I.; Pogorily, A.N. (Физика низких температур, 2002)
    The magnetic and transport properties of a 20 nm-scale twinned La₀.₆₅Ca₀.₃₅ MnO₃ film are investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic and charge-ordered insulating phases is ...
  • Heat capacity of mesoscopically disordered superconductors: implications for MgB₂ 
    Gabovich, A.M.; Voitenko, A.I.; Mai Suan Li; Szymczak, H. (Физика низких температур, 2002)
    The electronic specific heat C as a function of temperature T is calculated for a mesoscopically disordered s-wave superconductor treated as a spatial ensemble of domains with continuously varying superconducting properties. ...
  • Inelastic electron tunneling across magnetically active interfaces in cuprate and manganite heterostructures modified by electromigration processes 
    Belogolovskii, M.A.; Revenko, Yu.F.; Gerasimenko, A.Yu.; Svistunov, V.M.; Hatta, E.; Plitnik, G.; Shaternik, V.E.; Rudenko, E.M. (Физика низких температур, 2002)
    We report a study of the electron tunneling transport in point-contact junctions formed by a sharp Ag tip and two different highly correlated oxides, namely, a magnetoresistive manganite La₀.₆₆Ca₀.₃₄MnO₃ and a superconducting ...
  • Influence of dissipation on a low-voltage dc current in a long SNS junction 
    Kulinich, S.I.; Shekhter, R.I. (Физика низких температур, 2002)
    The dc current through a voltage-biased long transparent SNS junction in a dissipative regime is considered. The problem under certain conditions is mapped onto exactly solvable model of energy pumping into a quasiballistic ...
  • Irreversible magnetostriction and magnetization of the superconduting 2H-NbSe₂ single crystals in a peak-effect regime 
    Eremenko, V.V.; Sirenko, V.A.; Shabakayeva, Yu.A.; Gammel, P.L. (Физика низких температур, 2002)
    Magnetostriction mea sure ments in the mixed state of superconducting 2H-NbSe₂ single crystals under in-plane magnetic fields 0-12 T have revealed a peak on the magnetostriction versus magnetic field dependences in the ...
  • Josephson effect in point contacts between "f -wave" superconductors 
    Mahmoodi, R.; Kolesnichenko, Yu.A.; Shevchenko, S.N. (Физика низких температур, 2002)
    A stationary Josephson effect in point contacts between triplet superconductors is analyzed theoretically for most probable models of the order parameter in UPt₃ and Sr₂RuO₄. The consequence of misorientation of crystals ...
  • Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering 
    Kurnosov, V.S.; Pashkevich, Yu. G.; Peschanskii, A.V.; Fomin, V.I.; Yeremenko, A.V. (Физика низких температур, 2002)
    The appearance of new phonon lines in the Raman spectrum of the quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O as a consequence of magnetic ordering with a change of the unit cell volume was detected experimentally. ...
  • Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ 
    Troyanchuk, I.O.; Mantytskaja, O.S.; Szymczak, H.; Shvedun, M.Yu. (Физика низких температур, 2002)
    The crystal structure and magnetic properties of the La₁₋xBixMnO₃₊λ system (0⩽x⩽1;λ⩽0.08) are studied as functions of the oxygen and bismuth contents. In oxidized samples La₁₋xBixMnO₃₊λ a phase transition from a ferromagnetic ...
  • Magnetization dynamics of electron-impurity systems at paramagnetic resonance 
    Ivanchenko, E.A. (Физика низких температур, 2002)
    The equation for the magnetization is obtained on the basis of the kinetic equation for an isotropic distribution function of electrons scattering on massive impurity centers in the presence of magnetic and electric fields. ...
  • Metallic ferromagnetism in a generalized Hubbard model 
    Didukh, L.; Kramar, O. (Физика низких температур, 2002)
    The possibility of realization of a metallic ferromagnetic state in a generalized Hubbard model with correlated hopping and exchange interaction integrals is investigated. The single-electron energy spectrum recently ...
  • MgB₂ : синтез, скорость звука и динамика вихревой фазы 
    Игнатова, Т.В.; Звягина, Г.А.; Колобов, И.Г.; Масалитин, Е.А.; Филь, В.Д.; Падерно, Ю.Б.; Быков, А.Н.; Падерно, В.Н.; Ляшенко, В.И. (Физика низких температур, 2002)
    В синтезированных из элементов поликристаллах MgB₂ измерены скорости звука, рассчитаны модуль объемного сжатия и температура Дебая. Изучена конверсия упругой волны в электромагнитное излучение в смешанном состоянии. Оценены ...

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