Vortex loops entry into type--II superconductorsThe magnetic field distribution, the magnetic flux, and the free energy of an Abrikosov vortex loop near a flat surface of type--II superconductors are calculated in the London approximation. The…Alexey V. Samokhvalov·Apr 8, 1996SaveLearn
Vortex Response and Critical Fields observed via rf penetration depth measurements on the superconductor YNi2B2CMeasurements of the rf penetration depth λ(T,H,θ) are used to study the superconducting order parameter, vortex dynamics in the mixed state and delineate critical fields in the borocarbide…S. Oxx, D. P. Choudhury, Balam A. Willemsen et al.·Feb 26, 1996SaveLearn
s and d-wave symmetries of the solutions of the Eliashberg equationsWe examine the different possible symmetries of the superconducting gap obtained by solving the Eliashberg equations. We consider an electron-phonon interaction in a strong coupling scenario. The…G. Santi, T. Jarlborg, M. Peter et al.·Feb 23, 1996SaveLearn
Vortex Plastic Flow, B(x,y,H(t)), M(H(t)), Jc(B(t)), Deep in the Bose Glass and Mott-Insulator RegimesWe present simulations of flux-gradient-driven superconducting vortices interacting with strong columnar pinning defects as an external field H(t) is quasi-statically swept from zero through a…C. Reichhardt, C. J. Olson, J. Groth et al.·Feb 14, 1996SaveLearn
Updating the theoretical analysis of the weak gravitational shielding experimentThe most recent data about the weak gravitational shielding produced recently through a levitating and rotating HTC superconducting disk show a very weak dependence of the shielding value ($ 1…G. Modanese·Jan 17, 1996SaveLearn
Vortex structure and resistive transitions in high-Tc superconductorsThe nature of the resistive transition for a current applied parallel to the magnetic field in high-Tc materials is investigated by numerical simulation on the three dimensional Josephson junction…E. A. Jagla, C. A. Balseiro·Dec 14, 1995SaveLearn
Beta Irradiation of a Geometrically Metastable Superconducting Strip Detector with a Magnetic Flux Penetration Read-OutGeometrical metastability, observed in superconducting type I tin flat strips, has been previously proposed as a principle for particle detection. The energy deposition of an incoming beta-particle…V. Jeudy, D. Limagne, G. Waysand et al.·Dec 10, 1995SaveLearn
Vortex structure in d-wave superconductorsVortex structure of pure dx2-y2-wave superconductors is microscopically analyzed in the framework of the quasi-classical Eilenberger equations. Selfconsistent solution for the d-wave pair…M. Ichioka, N. Hayashi, N. Enomoto et al.·Dec 9, 1995SaveLearn
S-35 Beta Irradiation of a Tin Strip in a State of Superconducting Geometrical MetastabilityWe report the first energy loss spectrum obtained with a geometrically metastable type I superconducting tin strip irradiated by the beta-emission of S-35. (Nucl. Instr. Meth. A, in press)V. Jeudy, J. I. Collar, T. A. Girard et al.·Nov 30, 1995SaveLearn
Synchronization in one-dimensional array of Josephson coupled thin layersWe obtain self-consistent macroscopic equations describing interlayer Josephson effect and intralayer disequilibrium in one-dimensional array of Josephson coupled layers. We show that…Dmitry A. Ryndyk·Nov 21, 1995SaveLearn
Polaronic optical absorption in electron-doped and hole-doped cupratesPolaronic features similar to those previously observed in the photoinduced spectra of cuprates have been detected in the reflectivity spectra of chemically doped parent compounds of…P. Calvani, M. Capizzi, S. Lupi et al.·Oct 27, 1995SaveLearn
The string model of the Cooper pair in the anisotropic superconductorThe analogy between the Cooper pair in high temperature superconductor and the quark-antiquark pair in quantum chromodynamics (QCD) is proposed. In QCD the nonlinear chromodynamical field between a…V. D. Dzhunushaliev·Oct 11, 1995SaveLearn
Langevin Simulations of Two Dimensional Vortex Fluctuations: Anomalous Dynamics and a New IV-exponentThe dynamics of two dimensional (2D) vortex fluctuations are investigated through simulations of the 2D Coulomb gas model in which vortices are represented by soft disks with logarithmic…Kenneth Holmlund, Petter Minnhagen·Sep 6, 1995SaveLearn
Nonlinear Flux Diffusion and ac Susceptibility of Superconductors - Exact Numerical ResultsThe ac response of a slab of material with electrodynamic characteristics E j+1, ≥0, is studied numerically. From the solutions of the nonlinear diffusion equation, the…Z. Kozioł, R. A. Dunlap·Aug 29, 1995SaveLearn
Magnetostriction of a Superconductor: -Results from the Critical-State ModelIn many cases, the critical-state theory can be treated as a suffi ciently accurate approximation for the modelling of the magnetic properties of superconductors. In the present work, the…Z. Kozioł, R. A. Dunlap·Aug 29, 1995SaveLearn
The Bean Critical State: Infinitely UnstableThe threshold for creep in the Bean critical state is investigated. We perturb the Bean state by an energy Δε. We find that no matter how small Δε is it will always be able to induce creep…Steven Spencer, Henrik Jeldoft Jensen·Aug 24, 1995SaveLearn
Superconducting, magnetic, and charge correlations in the doped two-chain Hubbard modelSuperconducting, magnetic, and charge correlation functions and dynamic spin correlation functions of the doped two-chain Hubbard model is studied with the projector Quantum Monte carlo method and…Yoshihiro Asai·Aug 22, 1995SaveLearn
s- and dxy-wave components induced around a vortex in dx2-y2-wave superconductorsVortex structure of dx2-y2-wave superconductors is microscopically analyzed in the framework of the quasi-classical Eilenberger equations. If the pairing interaction contains an s-wave…M. Ichioka, N. Enomoto, N. Hayashi et al.·Aug 20, 1995SaveLearn
Nucleation and Growth of Normal Phase in Thin Superconducting StripsWe investigate the kinetics of normal phase nucleation and flux line condensation in the type-II superconductors by numerical study of the time-dependent Ginzburg-Landau equation. We have shown that…I. Aranson, B. Ya. Shapiro, V. Vinokur·Aug 3, 1995SaveLearn
Nonlinear optical response in doped conjugated polymersExciton effects on conjugated polymers are investigated in soliton lattice states. We use the Su-Schrieffer-Heeger model with long-range Coulomb interactions. The Hartree-Fock (HF) approximation and…Kikuo Harigaya·Jul 30, 1995SaveLearn
Screening current effects in Josephson junction arraysThe purpose of this work is to compare the dynamics of arrays of Josephson junctions in presence of magnetic field in two different frameworks: the so called XY frustrated model with no self…A. Petraglia, G. Filatrella, G. Rotoli·Jul 28, 1995SaveLearn
Constants of motion in the dynamics of a 2N-junction SQUIDWe show that a 2N junction SQUID (Superconducting QUantum Interference Device) made of 2N overdamped, shunted, identical junctions may be described as a system having only 6 degrees of freedom for…C. Nappi, G. Filatrella, S. Pagano·Jul 18, 1995SaveLearn
Low-Field Phase Diagram of Layered Superconductors: The Role of Electromagnetic CouplingWe determine the position and shape of the melting line in a layered superconductor taking the electromagnetic coupling between layers into account. In the limit of vanishing Josephson coupling we…Gianni Blatter, Vadim Geshkenbein, Anatoli Larkin et al.·Jul 7, 1995SaveLearn
Vortex Dynamics and the Hall-Anomaly: a Microscopic AnalysisWe present a microscopic derivation of the equation of motion for a vortex in a superconductor. A coherent view on vortex dynamics is obtained, in which both hydrodynamics and the vortex…Anne van Otterlo, Mikhail Feigel'man, Vadim Geshkenbein et al.·Jul 7, 1995SaveLearn
Renormalization group approach to layered superconductorsA renormalization group theory for a system consisting of coupled superconducting layers as a model for typical high-temperature superconducters is developed. In a first step the electromagnetic…Carsten Timm·Jul 4, 1995SaveLearn