Magneto-resistivity and magnetization investigations of YBCO superconductor added by nano-wires and nano-particles of titanium oxide


Hannachi E., Slimani Y., Ekicibil A. , Manikandan A., Ben Azzouz F.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, cilt.30, ss.8805-8813, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 30 Konu: 9
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s10854-019-01205-3
  • Dergi Adı: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
  • Sayfa Sayısı: ss.8805-8813

Özet

We study in this work the influence of titanium oxide (TiO2) nano-wires (NWs) and nano-particles (NPs) addition on the flux trapping potential of YBa2Cu3Oy (YBCO for brevity). Samples were characterized using various techniques, including X-rays diffraction, scanning electron microscopy, temperature dependence of resistivity under magnetic field and magnetization measurements. Three kinds of YBCO+x TiO2 samples with x=0.0 and 0.1 wt% were synthetized via the solid-state reaction route. The activation energy U-0, the coherence length (0), the upper critical field H-c2(0) and irreversibly field H-irr are estimated and discussed in the relation to TiO2 addition effect. The derived parameters are increased for samples containing 0.1 wt% of TiO2 nano-entities and are more enhanced in Y-Ti NPs sample. It results therefore, that suitable amount of TiO2 nano-particles addition can be useful tool for the manufacture of a promising YBCO compound for practical applications.