Polycrystalline Films on Flexible YSZ Substrates Grown by Hybrid Physical-Chemical Vapor Deposition

We report properties of polycrystalline MgB 2 films deposited on thin flexible yttium-stabilized zirconia (YSZ) substrates by hybrid physical-chemical vapor deposition. The MgB 2 films show a transition temperature of 38.9 K with a narrow superconducting transition (0.1 K). The self-field critical c...

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Bibliographic Details
Published inIEEE transactions on applied superconductivity Vol. 17; no. 2; pp. 2854 - 2857
Main Authors Pogrebnyakov, A.V., Maertz, E., Wilke, R.H.T., Qi Li, Soukiassian, A., Schlom, D.G., Redwing, J.M., Findikoglu, A., Xi, X.X.
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Chemical vapor deposition
Conductive films
Critical current density
Flexible YSZ substrates
hybrid physical-chemical vapor deposition
magnesium diboride
polycrystalline films
Substrates
Superconducting epitaxial layers
Superconducting filaments and wires
Superconducting films
Superconducting microwave devices
Superconducting transition temperature
Surface resistance
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Summary:We report properties of polycrystalline MgB 2 films deposited on thin flexible yttium-stabilized zirconia (YSZ) substrates by hybrid physical-chemical vapor deposition. The MgB 2 films show a transition temperature of 38.9 K with a narrow superconducting transition (0.1 K). The self-field critical current density in the films reaches 10 7 A/cm 2 at low temperatures. These properties do not change after repeated bending over a radius of 10 mm. Low microwave surface resistance comparable to those obtained in epitaxial MgB 2 films on single-crystalline sapphire substrate was observed. The result shows promise of polycrystalline MgB 2 films for applications in superconducting digital circuits as well as in coated conductor wires.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2007.897981