Effects of mgo on the electronic and superconducting properties in succinic acid (C4H6O4) doped MgB2 bulks

Aǧıl H., Çiçek Ö., Ertekin E., Motaman A., Hossain M., Dou S., ...Daha Fazla

Journal of Superconductivity and Novel Magnetism, cilt.26, sa.5, ss.1525-1529, 2013 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 5
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s10948-012-1952-z
  • Dergi Adı: Journal of Superconductivity and Novel Magnetism
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1525-1529
  • Anahtar Kelimeler: MgB2 bulks, Succinic acid, Upper and irreversibility field
  • Hakkari Üniversitesi Adresli: Hayır

Özet

In this paper, we report the doping effects of succinic acid, C4H6O4 (from 0 to 30 wt%) on the lattice parameter, critical temperature (Tc), critical current density (Jc), upper critical field (Hc2), and irreversibility field (Hirr) in MgB2 superconductor. It was found that MgB2 doped with 10 wt% C4H6O4 and sintered at 900 °C exhibited excellent Jc above 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 Jc, Hc2, Hirr due to poor inter and intra-grain connectivity.