Zobrazeno 1 - 10
of 1 042
pro vyhledávání: '"Rogalla, H"'
Hybrid magnetometers based on a normal conducting sensor and a superconducting flux concentrator have been investigated. When this sensor is operated in an unshielded environment flux vortices can be trapped in the superconducting body when the senso
Externí odkaz:
http://arxiv.org/abs/0809.3114
Vortex trapping is investigated in thin-film strips of superconducting material. We present a model for the critical field above which vortex trapping occurs in these strips. This model includes the pairing energy of vortex-antivortex pairs in additi
Externí odkaz:
http://arxiv.org/abs/0809.2930
Autor:
Kuit, K. H., Kirtley, J. R., van der Veur, W., Molenaar, C. G., Roesthuis, F. J. G., Troeman, A. G. P., Clem, J. R., Hilgenkamp, H., Rogalla, H., Flokstra, J.
A scanning SQUID microscope was used to image vortex trapping as a function of the magnetic induction during cooling in thin-film YBCO strips for strip widths W from 2 to 50 um. We found that vortices were excluded from the strips when the induction
Externí odkaz:
http://arxiv.org/abs/0801.2283
Autor:
Ariando, Smilde, H. J. H., Verwijs, C. J. M., Rijnders, G., Blank, D. H. A., Rogalla, H., Kirtley, J. R., Tsuei, C. C., Hilgenkamp, H.
Remarkably rich physics is involved in the behavior of hybrid Josephson junctions, connecting high-Tc and low-Tc superconductors. This relates in particular to the different order parameter symmetries underlying the formation of the superconducting s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606248
Autor:
Smilde, H. J. H., Golubov, A. A., Ariando, Rijnders, G., Dekkers, J. M., Harkema, S., Blank, D. H. A., Rogalla, H., Hilgenkamp, H.
We report on an \textit{ab}-anisotropy of $J_{c \parallel b}/J_{c \parallel a}% \cong 1.8$ and $I_{c}R_{n \parallel b}/I_{c}R_{n \parallel a}\cong 1.2$ in ramp-edge junctions between untwinned YBa$_{2}$Cu$_{3}$O$_{7}$ and $s$% -wave Nb. For these jun
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510694
Autor:
Ariando, Darminto, D., Smilde, H. -J. H., Leca, V., Blank, D. H. A., Rogalla, H., Hilgenkamp, H.
Phase-sensitive order parameter symmetry test experiments are presented on the electron-doped high-T_c cuprate Nd2-xCexCuO4-y. These experiments have been conducted using zigzag-shaped thin film Josephson structures, in which the Nd2-xCexCuO4-y is co
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503429
Publikováno v:
Appl. Phys. Lett. 80, 2955, 2002
A generalized model for the critical temperature Tc of superconducting bilayers is presented, which is valid with no restrictions to film thicknesses, Tc of the layers and interface resistivity. The model is verified experimentally on a series of Nb-
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407320
Autor:
Brammertz, G., Kozorezov, A. G., Wigmore, J. K., Hartog, R. den, Verhoeve, P., Martin, D., Peacock, A., Golubov, A. A., Rogalla, H.
Publikováno v:
J. Appl. Phys. 94, 5854, 2003
We describe a model for photon absorption by superconducting tunnel junctions in which the full energy dependence of all the quasiparticle dynamic processes is included. The model supersedes the well-known Rothwarf-Taylor approach, which becomes inad
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407316
Publikováno v:
J. Appl. Phys. 90, 1, pp. 355-364, 2001
This paper presents a general model for calculating the density of states and the Cooper pair potential in proximity coupled superconducting bi- and tri-layer films. The typical example of superconducting tunnel junctions is used to show that the mod
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407315
We study nonequilibrium charge transport in a double-barrier Josephson junction, including nonstationary phenomena, using the time-dependent quasiclassical Keldysh Green's function formalism. We supplement the kinetic equations by appropriate time-de
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310420