... 0.46BZT 0.48BZT 0.52BZT 0.54BZT 0.56BZT 13 P(C/cm2) -1 3 -2 6 26 0.50BZT 13 -1 3 -2 6 -3 0 -1 5 15 30 -3 0 -1 5 15 30 -3 0 E (kV/cm) -1 5 15 30 -3 0 -1 5 15 30 Hỡnh 3.13 ng tr st in ca vt liu xBZT Cỏc ng ... 0.15, sau ú gim Số liệu thực nghiệm - ng làm khớp -8 y = 0.00, = 1.470 y = 0.05, = 1.542 -1 0 ln(1/r - 1/rm) -1 2 -1 4 -8 y = 0.01, = 1.559 y = 0.15, = 1.796 -1 0 -1 2 -1 4 -8 y = 0.20, = 1.454 ... 0.44BZT 0.46BZT 0.48BZT 0.52BZT 0.54BZT 0.56BZT P (C/cm2) 13 -1 3 -2 6 26 0.50BZT 13 -1 3 -2 6 -3 0 -1 5 15 30 -3 0 -1 5 15 30 -3 0 -1 5 15 30 -3 0 -1 5 E (kV/cm) Fig 3.13 Hysteresis loop of xBZT compositions...