| 摘要 |
A capacitor includes a positive electrode base material, a dielectric layer, a positive electrode body, a dielectric layer, a negative electrode body, and a negative electrode base material. The positive electrode body is formed on the positive electrode base material and in part is in contact with the positive electrode base material. The positive electrode body is formed by association of a large number of metal particles, and the associated metal particles form a reticular network. The positive electrode base material and the positive electrode body (core part) are formed of a NiTi alloy containing Ni having a large work function. The dielectric layers (high-permittivity insulating film) are formed of titanium oxide. It is preferable that at least one Ni atomic layer is formed at an interface between the high-permittivity insulating film and the core part. Although the Ni atomic layer is preferably formed over the entire interface, the Ni atomic layer may be partially formed at the interface.
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