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Tunneling characteristics in epitaxial MgB2 tunnel junctions with amorphous and epitaxial tunnel barriers

Title
Tunneling characteristics in epitaxial MgB2 tunnel junctions with amorphous and epitaxial tunnel barriers
Authors
Kim T.H.
Ewha Authors
김태희
SCOPUS Author ID
김태희scopus
Issue Date
2006
Journal Title
Journal of the Korean Physical Society
ISSN
0374-4884JCR Link
Citation
vol. 49, no. 5, pp. L1881 - L1884
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
Superconductor (S) tunneling in the novel two-band superconductor magnesium diboride (MgB2) has been investigated with a view exploring MgB 2 by using spin-polarized tunneling and developing MgB2 Josephson devices. Besides quasiparticle tunneling into MgB2, MgB2 / Insulator (I) / MgB2 Josephson junctions have been fabricated, all in situ, on Si single-crystal substrates. Two superconducting energy gaps have been determined unequivocally by planar S/I/S tunneling. Our results have shown the Josephson effect in all MgB2 epitaxial tunnel junctions.
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자연과학대학 > 물리학전공 > Journal papers
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