TY - JOUR
T1 - Temperature-field phase diagram and spontaneous polarization in Pb(Sc1/2Ta1/2)O3single crystal
AU - Iwata, Makoto
AU - Arimoto, Yohei
AU - Suzuki, Yota
AU - Takikawa, Yoshinori
AU - Kishimoto, Shunji
AU - Aoki, Ichiro
AU - Sakakura, Terutoshi
AU - Kimura, Hiroyuki
N1 - Publisher Copyright:
© 2020 The Japan Society of Applied Physics.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - The temperature-field phase diagram and the temperature dependence of the spontaneous polarization in Pb(Sc1/2Ta1/2)O3 (PST) have been investigated by measuring the permittivity in the dc biasing field and observing the p-E hysteresis loop, respectively. X-ray diffraction studies to clarify the B-site cation ordering have also been performed. We have confirmed the PST single crystal used in our experiment to be a disordered PST. We have also determined that the ferroelectric critical endpoint (CEP) on the temperature-field phase diagram in the dc biasing field applied along the [111]c direction (in the cubic coordinate) was at 19.3 C and 4.85 kV cm-1. Our experimental results of the ferroelectric CEP and the spontaneous polarization in disordered PST are discussed in this paper on the basis of the Landau-type phenomenological theory.
AB - The temperature-field phase diagram and the temperature dependence of the spontaneous polarization in Pb(Sc1/2Ta1/2)O3 (PST) have been investigated by measuring the permittivity in the dc biasing field and observing the p-E hysteresis loop, respectively. X-ray diffraction studies to clarify the B-site cation ordering have also been performed. We have confirmed the PST single crystal used in our experiment to be a disordered PST. We have also determined that the ferroelectric critical endpoint (CEP) on the temperature-field phase diagram in the dc biasing field applied along the [111]c direction (in the cubic coordinate) was at 19.3 C and 4.85 kV cm-1. Our experimental results of the ferroelectric CEP and the spontaneous polarization in disordered PST are discussed in this paper on the basis of the Landau-type phenomenological theory.
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U2 - 10.35848/1347-4065/aba2c0
DO - 10.35848/1347-4065/aba2c0
M3 - Article
AN - SCOPUS:85090025652
VL - 59
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - SP
M1 - SPPA03
ER -