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http://dx.doi.org/10.4313/JKEM.2004.17.7.718

Crystal Structure of Ba(Mg1/3Nb2/3)O3 - La(Mg2/3Nb1/3)O3Complex Perovskite Compound  

Paik, Jong-Hoo (요업기술원 전자소재기술개발사업단)
Lee, Mi-Jae (요업기술원 전자소재기술개발사업단)
Choi, Byung-Hyun (요업기술원 전자소재기술개발사업단)
Jee, Mi-Jung (요업기술원 전자소재기술개발사업단)
Lim, Eun-Kyeong (요업기술원 전자소재기술개발사업단)
Nahm, Sahn (고려대학교 재료공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.7, 2004 , pp. 718-723 More about this Journal
Abstract
Crystal structure of $(Ba-{1-x}La_x)[Mg_\frac{1+x}{3}}Nb_\frac{{2-x}{3}}]O_3$ (BLMN) ceramics with 0\leq1x \geq was investigated using synchrotron X-ray powder diffraction (XRD) and high reso(B $a_{l-x}$L $a_{x}$)[M $g_{(1+x)}$3/N $b_{(2-x)/3}$］ $O_3$lution transmission electron microscopy (HRTEM). When the La content, x, is above 0.1, the 1:2 ordered hexagonal structure found in Ba($Mg_\frac{1}{3}Nb_\frac{2}{3}})O_3$(BMN) was transformed into 1:1 ordered cubic structure. The 1:1 ordered cubic structure was maintained up to x=0.7. When x exceeded 0.7, however, BLMN was transformed into 1:1 ordered structure which has cation displacement and in-phase and anti-phase tilt of octahedra.
Keywords
Dielectric resonator; Tilting of oxygen octahedra; HRTEM; Ordering; Super lattice;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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