Перегляд за темою "Свеpхпpоводимость, в том числе высокотемпеpатуpная"

Результати 21-40 з 342

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 ...
Current states in superconducting films: numerical results

Bezugly, E.V. (Физика низких температур, 2015)

We present numerical solutions of Aslamazov–Lempitskiy (AL) equations for distributions of the transport current density in thin superconducting films in the absence of external magnetic field, in both the Meissner and the ...
Current–voltage characteristics of Nb–carbon–Nb junctions

Nevirkovets, I.P.; Shafranjuk, S.E.; Chernyashevskyy, O.; Masilamani, N.; Ketterson, J.B. (Физика низких температур, 2014)

We report on properties of Nb(/Ti)–carbon–(Ti/)Nb junctions fabricated on graphite flakes using e-beam lithography. The devices were characterized at temperatures above 1.8 K where a Josephson current was not observed, but ...
De Haas-van Alphen effect and superconductivity

Gor`kov, L.P.; Landau, L.D. (Физика низких температур, 1999)

The problem of the robust de Haas-van Alphen oscillations seen experimentally in mixed superconducting state is discussed. The new threshold mechanism is suggested to explain persistence of the quantum oscillations deep ...
Depairing critical currents and self-magnetic field effects in submicron YBa₂Cu₃O₇₋δ microbridges and bicrystal junctions

Ivanov, Z.G.; Fogel, N.Ya.; Yuzephovich, O.I.; Stepantsov, E.A.; Tzalenchuk, A.Ya. (Физика низких температур, 2004)

We report on depairing critical currents in submicron YBa₂Cu₃O₇₋δ microbridges. A small-angle bicrystal grain boundary junction is used as a tool to study the entrance of vortices induced by a transport current and their ...
Determination of the coordinate dependence of a pinning potential from the microwave experiment with vortices

Shklovskij, V.A.; Dobrovolskiy, O.V. (Физика низких температур, 2013)

The measurement of the complex impedance response and accompanied power absorption P(ω) in the radiofrequency and microwave ranges represents a most popular experimental method to investigate pinning mechanisms and the ...
Dielectric properties of ferromagnetic Ni nanoparticles added (Cu₀.₅Tl₀.₅)Ba₂Ca₂Cu₃O₁₀₋δ superconducting phase

Mumtaz, M.; Asghar, M.A. (Физика низких температур, 2018)

Ferromagnetic nickel (Ni) nanoparticles were added in (Cu₀.₅Tl₀.₅)Ba₂Ca₂Cu₃O₁₀₋δ (CuTl-1223) superconducting matrix to get Nix/CuTl-1223; x = 0–1.00 wt% nanoparticles-superconductor composites. Temperature- and frequency-dependent ...
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 ...
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 ...
Dynamic behavior of Josephson-junction qubits: crossover between Rabi oscillations and Landau–Zener transitions

Shevchenko, S.N.; Kiyko, A.S.; Omelyanchouk, A.N.; Krech, W. (Физика низких температур, 2005)

We study the dynamic behavior of a quantum two-level system with periodically varying parameters by solving numerically the master equation for the density matrix. Two limiting cases are considered: multiphoton Rabi ...
Dynamics of electronic excitations in YBCO at low temperatures

Fugol, I.Ya.; Samovarov, V.N.; Libin, M.Yu. (Физика низких температур, 1999)

We present the results of low-temperature optical experiments (absorption and reflection) in visible and middle infrared frequency regions with epitaxial films of copper oxide materials like a Y₁Ba₂Cu₃O₆₊ₓ. Based on our ...
Dynamics of trapped magnetic flux in superconducting FeTe₀.₆₅Se₀.₃₅

Bondarenko, S.I.; Bludov, A.N.; Koverya, V.P.; Link, S.I.; Sivakov, A.G.; Timofeev, V.P.; Gawryluk, D.J.; Puźniak, R.; Wiśniewski, A. (Физика низких температур, 2017)

The magnetic moment in the superconducting and normal state of a crystalline FeTe₀.₆₅Se₀.₃₅ superconductor, grown by the Bridgman's method with relatively high growth rate, was measured. The temperature and magnetic field ...
Effect of electron-magnon coupling on the electronic spectrum of weakly doped high-Tc compounds

Ivanov, M.A.; Loktev, V.M.; Pogorelov, Yu.G. (Физика низких температур, 1998)

A theoretic analysis of magnon-induced damping Г of quasiparticle states in the normal phase of doped copper-oxide high-Tc materials is developed, based on a microscopic model which accounts for the specific 2D structure ...
Effect of nonlinearity, magnetic and nonmagnetic impurities, and spin-orbit scattering on the nonlocal microwave response of a d-wave superconductor

Yavari, H.; Biderang, M.; Kouhfar, M. (Физика низких температур, 2016)

By using linear response theory the low-temperature microwave response of a nonlocal and nonlinear d-wave superconductor with magnetic and nonmagnetic impurities is calculated. We will show that for the local, linear, ...
Effect of screening on the phonon–polaron states in a nanotube of diluted magnetic semiconductor

Seyid-Rzayeva, S.M. (Физика низких температур, 2013)

We report the calculation results of the effect of screening on weakly coupling Fröhlich polaron binding energy of the ground state and polaron contribution to the mass for the lowest spin-down subband of the conduc-tion ...
Electrical resistivity of Ti₄₁.₅Zr₄₁.₅Ni₁₇ quasicrystals in the temperature region 0.3–300 K

Azhazha, V.M.; Khadzhay, G.Ya.; Malikhin, S.V.; Merisov, B.A.; Ott, H.R.; Pugachov, A.T.; Sologubenko, A.V. (Физика низких температур, 2005)

The electrical resistivity of icosahedral quasicrystals Ti₄₁.₅Zr₄₁.₅Ni₁₇ was investigated in the temperature region between 0.3 and 300 K on samples of different quality. In the temperature region between 0.3 and 2 K, ...
Electromagnetically induced interference in a superconducting flux qubit

Du, Lingjie; Yu, Yang; Lan, Dong (Физика низких температур, 2013)

Interaction between quantum two-level systems (qubits) and electromagnetic fields can provide additional coupling channels to qubit states. In particular, the interwell relaxation or Rabi oscillations, resulting, respective-ly, ...
Embedded soliton dynamics in the asymmetric array of Josephson junctions

Starodub, Ivan О.; Zolotaryuk, Yaroslav (Физика низких температур, 2017)

The dc-biased annular array of three-junction asymmetric superconducting quantum interference devices (SQUIDs) is investigated. The existence of embedded solitons (solitons that exist despite the resonance with the linear ...
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer

Krivoruchko, V.N.; Koshina, E.A. (Физика низких температур, 2005)

The dc Josephson critical current of a (S/M)IS tunnel structure in a parallel magnetic field is investigated (here S is a superconductor, S/M is a proximity-coupled S and paramagnetic metal M bilayer, and I is an ...
Evidence for superconductivity and a pseudogap in the new magnetic compound PrAg₆In₆

Dmitriev, V.M.; Rybaltchenko, L.F.; Wyder, P.; Jansen, A.G.M.; Prentslau, N.N.; Suski, W. (Физика низких температур, 2005)

Direct evidence for superconductivity in the new magnetic compound PrAg₆In₆ is revealed for the first time. The distinct Andreev-reflection current is observed in metallic point contacts (PC) based on this compound. The ...

Результати 21-40 з 342

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Перегляд за темою "Свеpхпpоводимость, в том числе высокотемпеpатуpная"

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Перегляд за темою "Свеpхпpоводимость, в том числе высокотемпеpатуpная"

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