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Content Provider | IEEE Xplore Digital Library |
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Author | Orgiani, P. Cui, Y. Pogrebnyakov, A.V. Redwing, J.M. Vaithyanathan, V. Schlom, D.G. Xi, X.X. |
Copyright Year | 2002 |
Abstract | We report structural and transport proprieties of MgB/sub 2//MgO and MgB/sub 2//AlN multilayers for MgB/sub 2/ Josephson junctions. The MgB/sub 2/ layers were grown by hybrid physical chemical vapor deposition (HPCVD). The epitaxial MgB/sub 2//MgO/MgB/sub 2/ trilayers were grown in situ in the HPCVD system. The AlN layers were grown at room temperature by pulsed laser deposition, and the MgB/sub 2//AlN/MgB/sub 2/ trilayers were deposited ex situ with the deposition of the AlN layer between the depositions of the top and bottom MgB/sub 2/ layers. Although slightly less perfect than in films grown directly on sapphire and SiC substrates, excellent superconducting and transport properties were obtained in the MgB/sub 2/ layers in both heterostructures. The result addressed only the first of many issues about the adequacy of using MgO and AlN as the barrier materials for all-MgB/sub 2/ planar Josephson junctions, i.e. the ability to obtain good structural and superconducting properties in both electrode layers using the trilayer deposition process. It allows us to further investigate the conditions for better wetting and coverage of the insulator layers, as well as other critical issues in the fabrication of all-MgB/sub 2/ planar Josephson junctions. |
Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
Starting Page | 228 |
Ending Page | 231 |
Page Count | 4 |
File Size | 264816 |
File Format | |
ISSN | 10518223 |
Volume Number | 15 |
Issue Number | 2 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2005-06-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Josephson junctions Pulsed laser deposition Superconducting films Superconducting epitaxial layers Superconducting materials Nonhomogeneous media Chemical vapor deposition Temperature Optical pulses Chemical lasers magnesium diboride Heterostructures |
Content Type | Text |
Resource Type | Article |
Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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