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Cryogenics v.89, 2018년, pp.53 - 57   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Bi-based superconductors prepared with addition of CoFe2O4 for the design of a magnetic probe

Ben Salem, M.K. (Laboratory of Physics of Materials – ) ; Slimani, Y. (Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna, Tunisia ) ; Hannachi, E. (Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia ) ; Ben Azzouz, F. (Laboratory of Physics of Materials – ) ; Ben Salem, M. (Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna, Tunisia ) ;
  • 초록  

    Abstract We have investigated the microstructure and the magnetoresistivity of bismuth based superconductor bulks added with nano-sized CoFe 2 O 4 particles (10 nm in diameter). Samples were prepared through the solid state reaction (SSR) technique by addition of CoFe 2 O 4 nanoparticles during the last step of heat treatment. Phase examination using X-ray diffraction (XRD), morphology investigation by scanning electron microscope (SEM), microstructure and local chemical composition analyses using transmission electron microscope (TEM) coupled with energy dispersive X-ray spectroscope (EDXS), electrical resistance versus temperature ρ(T) under applied magnetic fields (B) and electrical resistance versus B at 77 K, ρ(B), were carried out. The CoFe 2 O 4 added sample shows a great magnetoresistance to weak magnetic field at the temperature of liquid nitrogen (77 K). This result is attractive for practical, because CoFe 2 O 4 added samples can be utilized as active elements in magnetic fields sensor devices. Highlights The influence of nano-sized CoFe 2 O 4 particles on the microstructure and the magnetoresistivity of BSCCO superconductors. The CoFe 2 O 4 added sample shows a large magnetoresistance to weak magnetic field at the temperature of liquid nitrogen (77K). The CoFe 2 O 4 added samples can be utilized as active elements in magnetic fields sensor devices.


  • 주제어

    BSCCO superconductor .   Nanometer CoFe2O4 .   Magnetoresistivity .   Magnetic fields sensor devices.  

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