Effect of the misalignment between the applied and internal magnetic fields on the critical currents of “tilted coated conductors”

Maiorov, B.; Gibbons, B. J.; Kreiskott, S.; Matias, V.; Holesinger, T. G.; Civale, L.
March 2005
Applied Physics Letters;3/28/2005, Vol. 86 Issue 13, p132504
Academic Journal
We present angular-dependent measurements of the critical current density (Jc) of a YBa2Cu3O7 film grown on tilted buffered Ion-Beam-Assisted-Deposition MgO metal tapes. We compare samples with the current parallel and perpendicular to the tape’s direction. In samples with the current parallel to the tape, we observe an asymmetric angular dependence of Jc and a shift of the ab-planes maxima position with the magnetic field strength. The shift is a result of the misalignment between the applied and internal magnetic fields. The misalignment effect takes place at fields lower than 3 T at T=75.5 K. For samples with the current perpendicular to the tape, we find an overall reduced value of Jc, the angular behavior is symmetrical, and no shift in the maxima position as a function of the magnetic field is observed. These results indicate that the effect of misalignment between the applied and internal magnetic fields must be taken into account when studying the angular dependence of Jc.


Related Articles

  • Hysteretic ac loss of superconducting strips simultaneously exposed to ac transport current and phase-different ac magnetic field. Mawatari, Yasunori; Kajikawa, Kazuhiro // Applied Physics Letters;1/8/2007, Vol. 90 Issue 2, p022506 

    A simple analytical expression is presented for hysteretic ac loss Q of a superconducting strip simultaneously exposed to an ac transport current I0 cos ωt and a phase-different ac magnetic field H0 cos(ωt+θ0). On the basis of the critical state model, the authors calculate Q for...

  • Superconductivity Near the Normal State Under the Action of Electric Currents and Induced Magnetic Fields in $${\mathbb{R}^2}$$. Almog, Yaniv; Helffer, Bernard; Xing-Bin Pan // Communications in Mathematical Physics;Nov2010, Vol. 300 Issue 1, p147 

    We consider the linearization of the time-dependent Ginzburg-Landau system near the normal state. We assume that an electric current is applied through the sample, which captures the whole plane, inducing thereby, a magnetic field. We show that independently of the current, the normal state is...

  • Phase diagram of a current-carrying superconducting film in the absence of a magnetic field. Bezuglyi, E. V.; Zolochevskii, I. V. // Low Temperature Physics;Oct2010, Vol. 36 Issue 10, p1008 

    A phase diagram of the current states of superconducting films is produced on the basis of an experimental study of the resistive transitions induced by the transport current. It is found that a comparatively narrow film of width w<5λ⊥ (λ⊥ is the penetration depth of the magnetic...

  • Transport properties of low angle grain boundaries in Y1-xCaxBa2Cu3O7-δ films at high magnetic fields. Weber, A.; Schneider, C. W.; Hembacher, S.; Schiller, Ch.; Thiel, S.; Mannhart, J. // Applied Physics Letters;3/27/2006, Vol. 88 Issue 13, p132510 

    The critical current density of grain boundaries and grains in Y1-xCaxBa2Cu3O7-δ films has been measured in magnetic fields up to 10 T. As a function of temperature the critical current densities across 8° [001]-tilt boundaries display a maximum at ≈15–20 K for...

  • A planar Penning trap. Stahl, S.; Galve, F.; Alonso, J.; Djekic, S.; Quint, W.; Valenzuela, T.; Verdú, J.; Vogel, M.; Werth, G. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Jan2005, Vol. 32 Issue 1, p139 

    We present a new concept for a Penning trap, which is planar and allows for the implementation of novel confinement techniques. The trap provides confinement perpendicular to its plane by an electric potential minimum while a superimposed magnetic field provides radial confinement. Both the...

  • Inversion of spin dependent photocurrent at Fe3O4/modulation doped GaAs heterointerfaces. Shirahata, Y.; Wada, E.; Itoh, M.; Taniyama, T. // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p07E105 

    We demonstrate inversion of the spin dependent photocurrent across an Fe3O4/modulation doped GaAs interface under optical spin orientation condition. The spin dependent photocurrent for fully epitaxial Fe3O4/GaAs and Fe/GaAs interfaces clearly show the opposite magnetic field dependence, where...

  • Progress in modeling and numerical simulation of negative hydrogen ion sources (invited). Hatayama, A. // Review of Scientific Instruments;Feb2008, Vol. 79 Issue 2, p02B901 

    Recent progress in numerical modeling of H- ion sources has been reviewed. The following two topics are mainly the focus: (1) the origin of the nonuniformity of H- production and H- beam in large H- sources and (2) extraction physics, especially the role of the “weak” transverse...

  • Modelling and optimization of submicron Hall sensors for the detection of superparamagnetic beads. Manzin, A.; Nabaei, V.; Kazakova, O. // Journal of Applied Physics;Apr2012, Vol. 111 Issue 7, p07E513 

    This paper deals with the numerical modeling of the electric potential distribution inside semiconductor Hall effect devices, under the presence of non-uniform magnetic fields. The model is applied to study miniaturized sensors for the detection of superparamagnetic nanobeads. The magnetic...

  • Electrostatic spin crossover effect in polar magnetic molecules. Baadji, Nadjib; Piacenza, Manuel; Tugsuz, Tugba; Sala, Fabio Della; Maruccio, Giuseppe; Sanvito, Stefano // Nature Materials;Oct2009, Vol. 8 Issue 10, p813 

    The magnetic configuration of a nanostructure can be altered by an external magnetic field, by spin-transfer torque or by its magnetoelastic response. Here, we explore an alternative route, namely the possibility of switching the sign of the exchange coupling between two magnetic centres by...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics