prov:value
| - In addition, when the primary component comprises X(Zr, Hf)O3 (in which X is at least one element selected from the group consisting of Ba, Sr and Ca) and/or D (in which D is a compound containing at least one element selected from the group consisting of V, Nb, Ta, Mo, W, Y, Sc, P, Al and Fe), the features described above can be further improved.
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