Zobrazeno 1 - 10
of 63
pro vyhledávání: '"G. Brorsson"'
Autor:
G. Brorsson, E. D. Bauer, J. B. Boyce, Frank Bridges, Tord Claeson, Corwin H. Booth, Yuri Suzuki
Publikováno v:
Physical Review B. 54:13352-13360
We have studied the local structure around Co in ${\mathrm{YBa}}_{2}$(${\mathrm{Cu}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Co}}_{\mathit{x}}$${)}_{3}$${\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ c-axis oriented thin
Autor:
Håkan Olin, Eva Olsson, G. Brorsson, J.M. Orliaguet, M. Gustafsson, P. Å. Nilsson, Tord Claeson
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:1653-1656
Planarized layers of YBa/sub 2/Cu/sub 3/O/sub 7/ (YBCO) were made by etching trenches in SrTiO/sub 3/ (STO) substrates, laser depositing a YBCO film and mechanically polishing the film down to the substrate surface. These structures exhibited critica
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:3276-3279
We have integrated an array of five High-T/sub c/ Josephson junction oscillators with a Josephson detector junction of high resistance, e.g. 25 /spl Omega/. High impedance detectors are suitable in integrated superconducting receivers. We find the ou
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2200-2203
Intrinsic properties, such as the London penetration depth /spl lambda//sub L/, and the surface resistance R/sub s/, can be estimated in high-T/sub c/ films by studying self-induced electromagnetic resonances (Fiske modes) in bicrystal grain boundari
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:3385-3388
Josephson flux-flow transistors based on 0-32/spl deg/ [001]-tilt YBa/sub 2/Cu/sub 3/O/sub 7/ bicrystal junctions have been fabricated with Au loops as the control current lines. In order to measure the S-parameters of the transistors, no matching el
Autor:
E.A. Stepantsov, V. Langer, T. Claeson, G. Brorsson, M. Löfgren, Z. G. Ivanov, Jose A. Alarco, Eva Olsson, Pedro Berastegui, Yu. A. Boikov
Publikováno v:
Journal of Applied Physics. 75:7958-7965
c‐axis‐oriented YBa2Cu3O7−x (YBCO) thin films were laser deposited on (001) yttria‐stabilized ZrO2 (YSZ) substrates with different surface morphologies. The in‐plane orientation of the films on smooth substrates was sensitive to the deposit
Publikováno v:
Journal of Applied Physics. 75:827-834
YBa2Cu3O7−x/insulator/YBa2Cu3O7−x trilayers with a single PrGaO3 (PGO) layer or a SrTiO3 (STO)/PGO multilayer as the insulator were prepared by laser deposition. The PGO layers contained pinholes extending down to the bottom layer, causing superc
Publikováno v:
Ultramicroscopy. :734-737
High-quality YBCO thin films deposited on yttria-stabilized zirconia substrates by laser ablation have been studied by scanning tunneling microscopy in air. The films have been grown at different substrate temperatures, and the measured critical curr
Autor:
Dag Winkler, M. Danerud, H. Olin, Tord Claeson, U. Engstrom, Jose A. Alarco, G. Brorsson, Zdravko Ivanov, Per-Åke Nilsson
Publikováno v:
Physica Scripta. 44:95-101
High quality superconducting YBa2Cu3O7-δ (YBCO) thin films were fabricated with ex situ co-evaporation on SrTiO3 and in situ laser deposition on (001) MgO substrates. The co-evaporated films gave a superconducting transition temperature, Tc ~ 90 K,
Publikováno v:
IEEE Transactions on Magnetics. 27:3324-3327
Intentionally weakened links were produced by diffusing Al or Cu into the grain boundaries of microbridges of high-T/sub c/ superconductors. Thin and narrow (70-130 mm) strips of Al or Cu were deposited across previously patterned microbridges and di