Effects of MgO on the Electronic and Superconducting Properties in Succinic Acid (C4H6O4) Doped MgB2 Bulks

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Journal of Superconductivity and Novel Magnetism, ISSN: 1557-1939, Vol: 26, Issue: 5, Page: 1525-1529

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http://ro.uow.edu.au/eispapers/1320; https://works.bepress.com/sxdou/520
Agil, H; Cicek, O; Ertekin, E; Motaman, Ashkan; Hossain, Md Shahriar; Dou, S X; Gencer, A
Springer Nature
Materials Science; Physics and Astronomy; bulks; electronic; c4h6o4; superconducting; properties; mgb2; acid; succinic; effects; doped; mgo; Engineering; Science and Technology Studies
article description
In this paper, we report the doping effects of succinic acid, CHO(from 0 to 30 wt%) on the lattice parameter, critical temperature (T), critical current density (J), upper critical field (H), and irreversibility field (Hirr) in MgB2 superconductor. It was found that MgB2 doped with 10 wt% C4H6O4 and sintered at 900 °C exhibited excellent Jabove 104 Acm−2 at 5 K and 8 T. Impurity scattering due to C substitution, improved crystallinity and the least amount of MgO in 10 wt% doped sample improves Jc very significantly. The MgO amount is rapidly increased in 20 and 30 wt% doped samples which causes a strong depression of J, H, Hdue to poor inter and intra-grain connectivity.