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      Effect of the superconductivity transition on the response of YBCO edge transition bolometers

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      Author
      Bozbey, Ali
      Fardmanesh, Mehdi
      Askerzade, I. N.
      Banzet, M.
      Schubert, J.
      Date
      2003
      Source Title
      Superconductor Science and Technology
      Print ISSN
      0953-2048
      Volume
      16
      Pages
      1554 - 1558
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Dependence of the phase and magnitude of the response of Y-Ba-Cu-O edge transition bolometers on the superconducting transition is studied. The responses of both large and small area devices were investigated and several anomalies are observed. The response of small area LaAlO3 devices considerably differed from that expected based on the dR/dT curve. This discrepancy is observed to be strongly dependent on the superconducting transition. Both the phase and magnitude/(dR/dT) of the response of the devices showed abrupt changes for below the Tc-onset when measured versus temperature, while the phase variation also showed strong dependence on the modulation frequency. We present the analysis and propose mechanisms responsible for the modulation frequency dependence of the response characteristics versus temperature, within the superconductivity transition region of the devices.
      Keywords
      Bolometers
      Crystalline materials
      Etching
      Lanthanum compounds
      Magnesia
      Magnetron sputtering
      Modulation
      Phase transitions
      Pulsed laser deposition
      Superconducting films
      Temperature measurement
      Yttrium barium copper oxides
      Edge transition bolometers
      Superconductivity transition
      Superconductivity
      Permalink
      http://hdl.handle.net/11693/27486
      Published Version (Please cite this version)
      http://dx.doi.org/10.1088/0953-2048/16/12/051
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      • Department of Electrical and Electronics Engineering 3524
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