To obtain a multi-valued memory maintaining excellent polarization-fatigue characteristics and a memory using polarization characteristics and capacitive characteristics having a gentle temperature coefficient.

A capacitor has stratified anti-ferroelectric containing a metallic oxide composed of a pyrochlore type oxide having a formula A2B2O7 as a capacitive film and an interface-layer oxide having a formula Me2O3. Here, A in the formula A2B2O7 represents an A-site atom selected from a metal group composed of Ba, Bi, Sr, Pb, Ca, K, Na and La. B in the formula A2B2O7 represents a B-site atom selected from a metal group composed of Ti, Zr, Ta, Hf, Mo, W and Nb. Me in the formula Me2O3 represents the atom of the interface-layer oxide selected from a metal group composed of Bi, Sc, Y, La, Sb, Cr and Tl.