Title :
The optimum conditions of crystal structure parameters on Y1 Ba2Cu3O7-y superconductor with RIETAN simulation
Author :
Bae, Cheolsoo ; Heung, Kwon Oh ; Hiratsuka, Nobuyuki
Author_Institution :
Dept. of Electron. Commun., Kwandong Univ., Kangneung, South Korea
Abstract :
In this paper, we have tried to find the optimum conditions of crystal structure parameters on YBCO high Tc oxide-superconductor. The superconductor sample was made by examined for the optimization of parameters through Rietveld analysis with the input data from the XRD patterns. From the simulation of the initial parameter, the factors such as scale factor(s), zero point shift(z), and the Full width Half Maximum (FWHM) values (U, V, W) are s=2.0827E-3, z=0.2146, and U=4.2716E-2. V=1.7983E-2, and W=2.6768E-2. By the above data, we have obtained the optimized results for YBCO complex materials. Therefore, R values were refined as follows, RWP=8.83[%], R P=6.47[%], R1=7.19[%], and RE=3.76[%], respectively
Keywords :
X-ray diffraction; barium compounds; crystal structure; high-temperature superconductors; optimisation; yttrium compounds; HTSC; R-factor; RIETAN simulation; Rietveld analysis; XRD patterns; Y1Ba2Cu3O7-y superconductor; YBCO complex materials; YBa2Cu3O7; crystal structure parameters; optimum conditions; scale factor; zero point shift; Annealing; Ceramics; Crystalline materials; Lattices; Materials science and technology; Powders; Superconducting materials; X-ray diffraction; X-ray scattering; Yttrium barium copper oxide;
Conference_Titel :
Circuits and Systems, 1998. IEEE APCCAS 1998. The 1998 IEEE Asia-Pacific Conference on
Conference_Location :
Chiangmai
Print_ISBN :
0-7803-5146-0
DOI :
10.1109/APCCAS.1998.743722
