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

Tae Hee Kim

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

Tae Hee Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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.

Original language	English
Pages (from-to)	L1881-L1884
Journal	Journal of the Korean Physical Society
Volume	49
Issue number	5
State	Published - Nov 2006

Keywords

Josephson junctions
Magnesium diboride
Multiband superconductor
Quasiparticle tunneling
Tunnel junctions

Cite this

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title = "Tunneling characteristics in epitaxial MgB2 tunnel junctions with amorphous and epitaxial tunnel barriers",

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.",

keywords = "Josephson junctions, Magnesium diboride, Multiband superconductor, Quasiparticle tunneling, Tunnel junctions",

author = "Kim, {Tae Hee}",

year = "2006",

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AU - Kim, Tae Hee

PY - 2006/11

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N2 - 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.

AB - 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.

KW - Josephson junctions

KW - Magnesium diboride

KW - Multiband superconductor

KW - Quasiparticle tunneling

KW - Tunnel junctions

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M3 - Article

AN - SCOPUS:33845570415

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VL - 49

SP - L1881-L1884

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 5

ER -

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

Abstract

Keywords

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