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  • Artikel  (4)
  • High-T c superconductor  (4)
  • Springer  (4)
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  • Elektrotechnik, Elektronik, Nachrichtentechnik  (4)
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  • Springer  (4)
  • Annual Reviews
  • Elsevier
  • Oxford University Press
  • Wiley
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  • 2005-2009
  • 2000-2004
  • 1990-1994  (4)
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  • Elektrotechnik, Elektronik, Nachrichtentechnik  (4)
  • Physik  (4)
  • 1
    Digitale Medien
    Digitale Medien
    Quasistatic field responses of fluxoids in an Y1Ba2Cu3O7−δ film (1992)
    Springer
    Journal of superconductivity 5 (1992), S. 47-53 
    Details
    ISSN: 1572-9605
    Schlagwort(e): High-T c superconductor ; fluxoid ; quasistatic magnetic field ; flux pinning
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract The quasistatic magnetic field responses (typically 0.8 Hz) of fluxoids in ac-axis oriented Y1Ba2Cu3O7−δ (Y123) film have been studied using a computerized mechanical pendulum at 77 K. The resonance frequence of the pendulum is significantly shifted to higher values due to the interaction between the Y123 film and a magnet mounted on the pendulum. The contribution of the magnet-superconductor interaction to the shift of the squared resonance frequency shows, in a certain range, a logarithmic dependence on the driving force (proportional to the amplitude). The present results are consistent with the previous studies on the bulk Y123 materials for different configuration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00617996
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Study of flux motion in Bi-based superconductors by a pendulum (1992)
    Springer
    Journal of superconductivity 5 (1992), S. 127-135 
    Details
    ISSN: 1572-9605
    Schlagwort(e): High-T c superconductor ; fluxoid ; magnetic stiffness ; flux pinning
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract Using a computerized mechanical pendulum, we have studied the lateral magnetic flux motion of the Bi-based high-T c superconductors in the quasi-static magnetic field (0.1 Hz) for the range 1 μm to 0.35 mm. The effect of d.c. and a.c. transport currents on the flux motion has also been investigated. We argue that the lateral magnetic stiffness is a measure of the pinning potential of the fluxoids in the superconductors. The pinning energy barrierε is estimated to be about 0.3 eV based on the stiffness measurements, which is comparable with the data from the YBa2Cu3O7−χ superconductors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00618056
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Lifting forces acting on magnets placed above a superconducting plane (1992)
    Springer
    Journal of superconductivity 5 (1992), S. 259-271 
    Details
    ISSN: 1572-9605
    Schlagwort(e): High-T c superconductor ; Meissner effect ; London model ; magnetic force microscope
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract Based on the London model, we have calculated the lifting forces acting on permanent (cylinder, ring, sphere, cone, etc.) magnets placed above an infinite superconducting plane. The theory has also been applied to obtain theoretical estimates of the forces acting on the semispherical and conical-shaped tips of a magnetic force microscope (MFM) over a high-T c superconductor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00617627
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Is Tl2Ba2CuO6 a superconductor-metal array? (1992)
    Springer
    Journal of superconductivity 5 (1992), S. 75-81 
    Details
    ISSN: 1572-9605
    Schlagwort(e): High-T c superconductor ; superlattice ; structural analysis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract From structural analysis we have shown in a previous investigation that the series TlBa2Ca n Cu n+1O2n+5 and Tl2Ba2Ca n Cu n+1O2n+6 are composed of superconductor-semiconductor arrays. In this paper, we demonstrate that the unit cell of the Tl2Ba2Ca n Cu n+1O2n+6 series can further be viewed as composed of a composite block of superconductor-metal-semiconductor, where TlBa2CuO5 is the fundamental superconductor, TlO the metallic unit, and CaCuO2 the semiconductor block. It is indicated that theT c of Tl(2201) can be deduced from that of Tl(1201) based on Kresin's model of composite systems.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00617999
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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