Demonstration of all in situ magnesium diboride superconductor thin-film tunnel junctions

Tae Hee Kim; Jagadeesh S. Moodera

doi:10.1063/1.1773369

Demonstration of all in situ magnesium diboride superconductor thin-film tunnel junctions

Tae Hee Kim, Jagadeesh S. Moodera

Department of Physics

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

28 Scopus citations

Abstract

High-quality planar tunnel junctions of MgB ₂ superconductor were investigated. The MgB ₂ film surface quality and composition were determined by Auger electron spectroscopy. Two superconducting energy gaps due to the σ and π bands of MgB ₂ were determined. Phonon structure were also observed during the tunneling process.

Original language	English
Pages (from-to)	434-436
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	3
DOIs	https://doi.org/10.1063/1.1773369
State	Published - 19 Jul 2004

Bibliographical note

Funding Information:
This research was supported by ONR Grant No. N00014-02-1-0119. The authors thank Dr. R. Meservey for his interest and valuable discussion. They acknowledge experimental assistance from P. LeClair, T. Santos, A. Thomas, and B. Satpati.

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10.1063/1.1773369

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abstract = "High-quality planar tunnel junctions of MgB 2 superconductor were investigated. The MgB 2 film surface quality and composition were determined by Auger electron spectroscopy. Two superconducting energy gaps due to the σ and π bands of MgB 2 were determined. Phonon structure were also observed during the tunneling process.",

author = "Kim, {Tae Hee} and Moodera, {Jagadeesh S.}",

note = "Funding Information: This research was supported by ONR Grant No. N00014-02-1-0119. The authors thank Dr. R. Meservey for his interest and valuable discussion. They acknowledge experimental assistance from P. LeClair, T. Santos, A. Thomas, and B. Satpati.",

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AB - High-quality planar tunnel junctions of MgB 2 superconductor were investigated. The MgB 2 film surface quality and composition were determined by Auger electron spectroscopy. Two superconducting energy gaps due to the σ and π bands of MgB 2 were determined. Phonon structure were also observed during the tunneling process.

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Demonstration of all in situ magnesium diboride superconductor thin-film tunnel junctions

Abstract

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