A.C. Impedance Spectroscopy of B-Axis Oriented SrO Substituted BaTi2O5 Prepared by Arc-Melting
b-axis oriented SrO substituted BaTi2O5 (Ba1-xSrxTi2O5) was prepared by arc-melting. The effect of SrO substitution on the dielectric properties of BaTi2O5 (BT2) was investigated by A.C. impedance spectroscopy. The Cole-Cole plot of Ba1-xSrxTi2O5 showed a distorted semi-circle which was deconvoluted into two semicircles corresponding to the bulk BT2 and a second phase. The complex impedance, modulus and capacitances from the ferroelectric bulk matrix and the paraelectric second phase of Ba1-xSrxTi2O5 were simulated by a Maxwell-Wagner model.
Katsutoshi Komeya, Yohtaro Matsuo and Takashi Goto
X. Y. Yue et al., "A.C. Impedance Spectroscopy of B-Axis Oriented SrO Substituted BaTi2O5 Prepared by Arc-Melting ", Key Engineering Materials, Vol. 352, pp. 277-280, 2007