The Separation Distance of the Diffraction Peak Angle between Main Planes (hkl) As an Indicator of the Orthorhombicity of the GdBa2Cu3O7-? Phase Crystal Lattice Structure
Abstract
The orthorombicity of a crystal lattice structure is indicated by the difference in lattice parameter values ??a, b and c. This study aims to show that the split distance value between the angles of the diffraction peaks of the two planes (hkl) closest is the same as the orthorombicity value crystal structure on the GdBa2Cu3O7-? phase. For this purpose, in this study, a compound Gd0,85La0,15Ba2-xSrxCu3O7- has been synthesized with variations of x = 0.00, 0.05, 0.10, 0.20, 0.30 and 0.50. Samples were synthesized using a solid reaction method with wet mixing, sintered at a temperature of 900°C for 12 hours. From the results of XRD spectrum analysis with Match-3 and Rietica software, it is found that by the increasing the content of Sr the pattern of changes in the value of the split distance the angles of the diffraction peaks of (hkl) planes closest, the measurement and calculation results are the same with the changing pattern of the orthorombicity value. The measurement and calculation results, the split distance value between the diffraction peaks angle for the plane of (020) and (200) is almost equal to one-tenth of the orthorombicity value. Thus, the split distance value between the angles of the diffraction peaks of the two (hkl) planes closest can be used as an indicator of the orthorombicity a GdBa2Cu3O7-? phase crystal structure.
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References
[2] P. Benzi, E. Bottizzo, N. Rizzi, Oxygen Determination From Cell Dimensions in YBCO Superconductors, Journal of Crystal Growth , Vol. 269, 2004, pp. 625–629.
[3] W. Wong-Ng, L. P. Cook, H. B. Su, M. D. Vaudin, C. K. Chiang, D. R. Welch, E. R. Fuller, Jr, Z. Yang, L. H. Bennett, Phase Transformations in the High Tc Superconducting Compounds, Ba2RCu3O7- (R = Nd, Sm, Gd, Y, Ho, and Er), J. Res. Natl. Inst. Stand. Technol., Vol. 111, 2006, pp. 41-55.
[4] I-Wei Chen, S.J. Keating, C.Y. Keating, X. Wu, J. Xu, P.E. Reyes-Morel, and T.Y. Tien, Structural Behavior and Superconductivity of YBa2Cu3Ox, Solid State Communications, Vol. 63 (l1), 1987, pp. 997-1001.
[5] P. Yossefov, G.E. Shter, G.M. Reisner, A. Friedman, Y. Yeshurun, G.S. Grader, Relationship of Solubility Parameter (x), Powder Properties And Phase Formation in the Nd1+xBa2-xCu3O6.5+x/2+ system, Physica C, 1997, Vol. 275, pp. 299-310.
[6] C. Rial, E. Mora, M. A. Alario-Franco, U. Amador, N.H. Andersen, Structural and superconducting properties of La2−xNdxCuO4+y (0≤x≤0.5) prepared by room temperature chemical oxidation, Physica C, Vol. 281, No.2, pp. 781-782.
[7] F. Licci, A. Gauzzi., M. Marezio, G. P. Radaelli, R.C. Masini, C. Chaillout-Bougerol, Structural and Electronic Effects of Sr Substitution for Ba in Y(Ba1-xSr)2Cu3Ow at Varying w, Physical Review B, 1998, Vol. 58, No. 22, pp. 209-217.
[8] I K. Wahyu S. P., Sintesis Senyawa Gd0.85La0.15Ba2-xSrxCu3O7-δ Dengan Variasi Molar 0
[10] M. Sumadiyasa, I G A. Putra Adnyana, I G A. Widagda, W G Suharta, Study synthesis of (La1-xGdx)Ba2 Cu3O7-δ Superconductors at Low Temperature, Journal of Physics, Conference Series, 2016, Vo. 725, 012001. https://doi.org/10.1088/1742-6596/725/1/012001.