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Enhancement of critical current density and irreversibility field by nano-carbon substitution in MgB2

โœ Scribed by W.K. Yeoh; J.H. Kim; J. Horvat; X. Xu; S.X. Dou


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
114 KB
Volume
460-462
Category
Article
ISSN
0921-4534

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We report on Ag and Cu doping in MgB 2 thick films using amorphous Ag-and Cu-impurity layers with various thicknesses, 4, 8, 16, and 32 nm. Firstly, Ag-and Cu-impurity layers were deposited on Al 2 O 3 (0 0 0 1) substrates at room temperature by using pulsed laser deposition system. Subsequently MgB