(SC_2(WO_4)_3)_(1-x)(M_2(MoO_4)_3)_x(M=Nd,Sm,Gd,Lu)系固溶体是不显示氧化物阴离子或电子导电的阳离子导体。在考虑阳离子导电时,对于含M_2(MoO_4)_3较少的化合物, Sc~(3+)与M~(3+)阳离子都是可移动的,但Sc~(3+)占优势。由于离子迁移通道尺寸的增大和阴离子基质晶格与移动离子之间的静电相互作用减弱的同时作用,电导性质较纯Sc_2 The solid solution of (SC_2 (WO_4) _3) _ (1-x) (M_2 (MoO_4) _3) _x (M = Nd, Sm, Gd, Lu) is a cationic conductor that does not show oxide anions or electrons. Sc 3+ and M 3+ are mobile, but Sc 3+ is dominant for compounds containing less M_2 (MoO_4) _3 when cation conduction is considered. Due to the increase of the size of ion transport channel and the weakening of the electrostatic interaction between the crystal lattice and the mobile ion,