first a method for making sample no 1 in table 1 and electric characteristics thereof will be described compounds in the combination 1 are weighed poured into a pot mill with alumina ball and 2 5 l of water and stirred and mixed for 15 hours to obtain a material mixture ______________________________________the combination 1compounds weight g mol portion______________________________________baco sub 3 1029 33 0 96mgo 6 57 0 03zno 4 42 0 01caco sub 3 5 43 0 01srco sub 3 8 02 0 01tio sub 2 425 44 0 98er sub 2 o sub 3 20 78 0 01______________________________________ here values of the weight g and the mol portion of the compounds in the combination 1 are calculated so as that the composition formula of the basic component next the material mixture is poured into a stainless pot and dried for 4 hours at 150 u00b0 c with using a hot blast drier the dried material mixture is grinded roughly the grinded material mixture is baked for 2 hours at 1200 u00b0 c in the air with using a tunnel furnace and the powder of the first basic component in the composition formula 1 of the basic component can be obtained compounds in the combination 2 are weighed added with 300 cc of alcohol and stirred for 10 hours in a polyethylene pot with using aluminum balls then the mixture is baked for 2 hours at 1000 u00b0 c in the air ______________________________________the combination 2compounds weight g mol portion______________________________________li sub 2 o 0 43 1sio sub.