$La^{3+}$ and $Y^{3+}$ DOPING EFFECTS IN FERROELECTRIC SrBi$_2$Nb$_2$O$^{9}$  CERAMICS

T.K. Song (Department of Ceramic Science and Engineering Changwon National University) ;
C.S.Youn (Department of Ceramic Science and Engineering Changwon National University) ;
Cho, J.A.. (Department of Ceramic Science and Engineering Changwon National University) ;
Kim, M.H. (Department of Ceramic Science and Engineering Changwon National University) ;
Kim, J.S. (Institute of Basic Sciences, Changwon National University) ;
Kim, S.S. (Department of Physics, Changwon National University)

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