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|
|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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