Studies on Nano Crystalline Ceramic Superconductor LaZrYBaCa2Cu3O11 at Three Different Temperatures
Author(s)
Anitha S. Nair,
Vinila V. S.,
Sheelakumari Issac,
Reenu Jacob,
Anusha Mony,
Harikrishnan G. Nair,
Sam Rajan,
Satheesh D. J.,
Jayakumari Isac*
Affiliation(s)
Department of Physics, D.B. College, Parumala, India. Centre for Condensed Matter, Department of Physics, CMS College, Kottayam, India. Department of Chemistry, UC College, Aluva, India.
Department of Physics, D.B. College, Parumala, India. Centre for Condensed Matter, Department of Physics, CMS College, Kottayam, India. Department of Chemistry, UC College, Aluva, India.
ABSTRACT
The high temperature superconductors are ceramic materials with layers of Copper-oxide spaced by layers containing Barium and other atoms. The Yttrium compound is somewhat unique in that it has a regular crystal structure while the Lanthanum version is classified as a solid solution. The Yttrium compound is often called the 1-2-3 superconductor because of the ratios of its constituents. Lanthanum Zirconium Yttrium Barium Calcium Copper Oxide (LaZrYBaCaCuO) was prepared by the usual solid state reaction method. In order to show the viability of the proposed method, super-conducting powder was prepared in special furnace. The sample was analyzed by X-ray Diffraction (XRD), Particle size determination, SEM and EDX. The comparison of XRD results with JCPDS files confirmed the orthorhombic structure of the sample with a ≠ b ≠ c and α = β = γ = 90°. Scanning Electron Microscopy (SEM) studies revealed that its particle size is in the nanometer range. It also confirmed the calculated value of particle size from Debye Scherrer’s formula. EDX spectrum shows the elements of the sample. X-ray instrumental peak broadening analysis was used to evaluate the size and lattice strain by the Williamson-Hall Plot method.
The high temperature superconductors are ceramic materials with layers of Copper-oxide spaced by layers containing Barium and other atoms. The Yttrium compound is somewhat unique in that it has a regular crystal structure while the Lanthanum version is classified as a solid solution. The Yttrium compound is often called the 1-2-3 superconductor because of the ratios of its constituents. Lanthanum Zirconium Yttrium Barium Calcium Copper Oxide (LaZrYBaCaCuO) was prepared by the usual solid state reaction method. In order to show the viability of the proposed method, super-conducting powder was prepared in special furnace. The sample was analyzed by X-ray Diffraction (XRD), Particle size determination, SEM and EDX. The comparison of XRD results with JCPDS files confirmed the orthorhombic structure of the sample with a ≠ b ≠ c and α = β = γ = 90°. Scanning Electron Microscopy (SEM) studies revealed that its particle size is in the nanometer range. It also confirmed the calculated value of particle size from Debye Scherrer’s formula. EDX spectrum shows the elements of the sample. X-ray instrumental peak broadening analysis was used to evaluate the size and lattice strain by the Williamson-Hall Plot method.
KEYWORDS
Lanthanum Zirconium Yttrium Barium Calcium Copper Oxide (LaZrYBaCaCuO), XRD, SEM, EDX, Debye Scherrer’s Formula, Instrumental Broadening, Williamson-Hall Plot Method
Lanthanum Zirconium Yttrium Barium Calcium Copper Oxide (LaZrYBaCaCuO), XRD, SEM, EDX, Debye Scherrer’s Formula, Instrumental Broadening, Williamson-Hall Plot Method
Cite this paper
S. Nair, A. , V. S., V. , Issac, S. , Jacob, R. , Mony, A. , G. Nair, H. , Rajan, S. , D. J., S. and Isac, J. (2014) Studies on Nano Crystalline Ceramic Superconductor LaZrYBaCa2Cu3O11 at Three Different Temperatures. Journal of Crystallization Process and Technology, 4, 126-133. doi: 10.4236/jcpt.2014.42016.
S. Nair, A. , V. S., V. , Issac, S. , Jacob, R. , Mony, A. , G. Nair, H. , Rajan, S. , D. J., S. and Isac, J. (2014) Studies on Nano Crystalline Ceramic Superconductor LaZrYBaCa2Cu3O11 at Three Different Temperatures. Journal of Crystallization Process and Technology, 4, 126-133. doi: 10.4236/jcpt.2014.42016.
References
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http://dx.doi.org/10.1006/jcis.2001.7489 [6] Ghosh S.C., Thanachayanont, C. and Dutta, J. (2004) Studies on Zinc Sulphide Nanoparticles for Field Emission Devices. The 1st ECTI Annual Conference (ECTI-CON2004), Pattaya, 13-14 May 2004, 145-148.
[1] West, A.R. (1974) Solid State Chemistry and Its Applications. Wiley, New York. [2] Williamson, G.K. and Hall, W.H. (1953) X-Ray Line Broadening from Filed Aluminium and Wolfram. Acta Metallurgica, 1, 22-31. http://dx.doi.org/10.1016/0001-6160(53)90006-6 [3] Cullity, B.D. (1978) Elements of X-Ray Diffraction. 2nd Edition, Addison-Wesley Publishing Company Inc., Phillippines. [4] Xie, Q. and McCourt, F. (2008) Nanotechnology Engineering NE 320L Lab Manual. University of Waterloo, Waterloo, 35-39. [5] So, W.W., Jang, J.S., Rhee, Y.W., Kim, K.J. and Moon, S.J. (2001) Preparation of Nanosized Crystalline CdS Particles by the Hydrothermal Treatment. Journal of Colloid and Interface Science, 237, 136-141.
http://dx.doi.org/10.1006/jcis.2001.7489 [6] Ghosh S.C., Thanachayanont, C. and Dutta, J. (2004) Studies on Zinc Sulphide Nanoparticles for Field Emission Devices. The 1st ECTI Annual Conference (ECTI-CON2004), Pattaya, 13-14 May 2004, 145-148.