Study on Bi2Sr2CaCu2O8/CoFe2O4 composites

Das, Bamadev (2012) Study on Bi2Sr2CaCu2O8/CoFe2O4 composites. MSc thesis.



Composites of Bi-2212 with Cobalt ferrite (CoFe2O4) have been prepared to study different properties like critical current density, transition temperature and surface morphology. Bulk Bi2Sr2CaCu2o8 (Bi-2212) superconductors are prepared by solid state route. Cobalt ferrite (CoFe2O4) samples are prepared via sol-gel method. The phases of both Bi-2212 and cobalt ferrite are studied by x-ray diffraction, which are found to be in match with JCPDS data. When the various concentrations of cobalt ferrite is added to Bi-2212, the transition temperature of Bi-2212 decreases drastically. Addition of higher concentration makes the sample semiconducting till the lowest temperature of investigation. The critical current density of Bi-2212 is measured below the transition temperature. It is observed that the critical current density of Bi-2212 decreases with increasing temperature.

Item Type:Thesis ( MSc)
Uncontrolled Keywords:Bi-2212, solid state route, sol-gel method
Subjects:Physics > Condensed Matter
Divisions: Sciences > Department of Physics
ID Code:3414
Deposited By:Mr Bamadev Das
Deposited On:14 May 2012 10:33
Last Modified:15 Jun 2012 11:38
Supervisor(s):Vishwakarma, P N

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