Open Access Open Access  Restricted Access Subscription or Fee Access

Effect of Calcium doping on Structural and Morphological properties of YBCO Superconductor

Nitu Katariya, Bhavana Singh, L. S. Sharath Chandra, S. B. Shrivastava, V. Ganesan

Abstract


In this paper, we have reported the effect of Ca doping in YBCO superconductors with an aim of understanding the effect of novel local nano distortions on the superconducting properties of YBCO. Solid state reaction method is used to prepare the samples. X-Ray diffraction pattern shows that the samples are polycrystalline and having orthorhombic structure while Resistivity measurement shows that Tc decreases with increase in Ca-doping.Morphological studies reveals clear evolution of microstructure from a grains and grain boundaries like structure in YBCO and low Ca concentrations to a smooth well connected microstructure upon higher Ca content.


Keywords


Ca-doped YBCO, high Tc superconductor, XRD, resistivity, AFM

Full Text:

PDF

References


Mohan Rajneesh, Singh Kiran, KaurNupinderjeet, Bhattacharya b Shovit, Dixit Manglesh, Gaur N. K., Shelke Vilas, Gupta S. K., Singh R.K.,Solid State Communications 141, 605 (2007).

Bai Z, Wang Z. H., Li P. J., Qiu L., Zhang H and Ga J., Supercond. Sci. Technol. 19 1034(2006).

Harada Takuya, Yoshida Katsukuni, Physica C 388–389 729–730,(2003).

Semwal Anita, Strickland N M, Bubendorfer A, Naqib S H, GohSweeKuan and William G V M, Supercond. Sci. Technol. 17, S506(2004).

XuKe-Xi, Qiu Jing-He and Shi Li-yi, Supercond. Sci. Technol. 19 178–183 (2006).

Marvin A. Schofield, Marco Beleggia,Yimei Zhu, KarstenGuth, and Christian Jooss, Phys. Rev Lett 92,195502,(2004).

Klie R. F., Buban J. P., Varela M., Franceschetti A. , Jooss C., Zhu Y., Browning N. D., Pantelides S. T., nature 435, 03644(2005).

Liarokapis E., Palles D., Lampakis D., Böttger G., Conder K., and Kaldis E., Phys. Rev. B 71,014303,(2005).

Bandyopadhyay S. K., SenPintu, Barat P., Mukherjee P., Bhattacharyay A., Rajasekar P., Chakraborty P., Caccavale F., LoRusso S, Ghosh A. K., Basu A. N., Physics Letters A 226, 237-243(1997).




DOI: https://doi.org/10.37628/ijan.v6i1.651

Refbacks

  • There are currently no refbacks.