Piezoelectric single crystal including internal electric field, method for manufacturing same, and piezoelectric and dielectric application components using same

A piezoelectric single crystal-with-having a perovskite type structure ([A][B]O3) having an internal bias electric field, the piezoelectric single crystal comprising:

• a compositional formula of Chemical Formula 1 below:
• [A1-(a+1.5b)BaCp][(MN)1-x-y(L)yTix]O3-z Chemical Formula 1
• where A represents Pb or Ba;
• B represents at least one or more elements selected from the group consisting of Ba, Ca, Co, Fe, Ni, Sn, and Sr;
• C represents one or more elements selected from the group consisting of Co, Fe, Bi, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu;
• L represents a single form composed of one selected from Zr, Hf, and a mixed form thereof;
• M represents at least one or more elements selected from the group consisting of Ce, Co, Fe, In, Mg, Mn, Ni, Sc, Yb, and Zn;
• N represents at least one or more elements selected from the group consisting of Nb, Sb, Ta, and W;
• and a, b, x, y, and z represent 0<a≤0.10, 0<b≤0.05, 0.05<x≤0.58, 0.05<y≤0.62, and 0<z≤0.02, respectively;
• and
• physical properties presented in items (1) to (4) below:
• (1) a dielectric constant K3T is 4,000 to 15,000;
• (2) a piezoelectric charge constant d33 is 1,400 to 6,000 pC/N;
• (3) a coercive electric field EC is 3.5 to 12 kV/cm;
• and
• (4) an internal bias electric field EI is 0.5 to 3.0 kV/cm.