Magnesium Diboride Flexible Flat Cables for Cryogenic Electronics

Magnesium diboride (MgB 2 ) thin films are a potential alternative to low-temperature superconductors (LTS) due to a higher critical temperature ( Tc ) of approximately 39 K. The reactive evaporation deposition technique also affords relatively simple growth of MgB 2 films on flexible substrates com...

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Veröffentlicht in:IEEE transactions on applied superconductivity 2011-06, Vol.21 (3), p.107-110
Hauptverfasser: Yung, C S, Moeckly, B H
Format: Artikel
Sprache:eng
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Zusammenfassung:Magnesium diboride (MgB 2 ) thin films are a potential alternative to low-temperature superconductors (LTS) due to a higher critical temperature ( Tc ) of approximately 39 K. The reactive evaporation deposition technique also affords relatively simple growth of MgB 2 films on flexible substrates compared to high-temperature superconductors (HTS). We have designed and fabricated a cable architecture consisting of MgB 2 traces on flexible yttria-stabilized zirconia (YSZ) compatible with commercially available connectors or direct wirebonds. Key performance metrics such as critical current density ( Jc ) and Tc are measured and compared. We discuss thermal conductivity and passivation schemes for these cables.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2010.2080655