fig12
Figure 12. Variable frequency ferroelectric properties of SBSRN ceramics, (A) R = Mn, (C) R = Ti, (D) R = Sn, (E) R = Hf, Energy storage density as well as efficiency of variable temperature ferroelectrics based on SBSRN ceramics, (B) R = Mn, (F) R = Ti, (G) R = Sn,
