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Effects of MgO impurities and micro-cracks on the critical current density of Ti-sheathed MgB2 wires

โœ Scribed by G. Liang; M. Alessandrini; F. Yen; M. Hanna; H. Fang; C. Hoyt; B. Lv; J. Zeng; K. Salama

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
531 KB
Volume
457
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