| abstract |
PROBLEM TO BE SOLVED: To provide a barium titanate having a small particle size, few unnecessary impurities and excellent electrical characteristics, and a method for producing the same. SOLUTION: A perovskite-type barium titanate containing 5 mol% or less (including 0 mol%) of at least one element selected from the group consisting of Sn, Zr, Ca, Sr, Pb and the like with respect to BaTiO 3 , and a perovskite. When the structure is represented as ABX 3 , the molar ratio of A atom to B atom is 1.001 or more and 1.025 or less, the specific surface area x, and the ratio of the length of c axis and a axis calculated by Rietveld method Y employs barium titanate satisfying the formula (1). y> 1.00083−6.53 × 10 −7 × x 3 (1) (where y = c-axis length / a-axis length, and 6.6 <x ≦ 20) [Selection figure] None |