The 68th JSAP Spring Meeting 2021

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9 Applied Materials Science » 9.1 Dielectrics, ferroelectrics

[18p-Z16-1~16] 9.1 Dielectrics, ferroelectrics

Thu. Mar 18, 2021 1:30 PM - 6:00 PM Z16 (Z16)

Shinya Tsukada(Shimane Univ.), Shintaro Ueno(Univ. of Yamanashi), Takaaki Morimoto(National Defence Academy)

4:15 PM - 4:30 PM

[18p-Z16-11] Angle-resolved polarized Raman mapping on composition-gradient (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 crystal

〇Shinya Tsukada1, Yasuhiro Fujii2, Yukikuni Akishige1, Kenji Ohwada3 (1.Shimane Univ., 2.Ritsumeikan Univ., 3.QST)

Keywords:ferroelectrics, Raman spectroscopy

The giant electric field response in relaxor ferroelectrics was investigated by angle-resolved polarized Raman spectroscopy. In the composition-gradient (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3, two phase boundaries exist in the crystal, and the origin of the giant dielectric response was interpreted through the correlation among composition-phonon and electric field responses probed by Raman mapping.