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Crystals 2014, 4(3), 273-295; doi:10.3390/cryst4030273
Review

Polarization Rotation and Monoclinic Distortion in Ferroelectric (Bi0.5Na0.5)TiO3–BaTiO3 Single Crystals under Electric Fields

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Received: 1 May 2014; in revised form: 26 June 2014 / Accepted: 27 June 2014 / Published: 16 July 2014
(This article belongs to the Special Issue Piezoelectric Crystals)
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Abstract: The features of the crystal structures and spontaneous polarization (Ps) under an electric field (E) have been reviewed for (1 − x)(Bi0.5Na0.5)TiO3xBaTiO3 (BNT–BT). In-situ measurements of high-resolution synchrotron radiation X-ray diffraction (SR-XRD) under electric fields show that single crystals with x = 0 (BNT) and 5% have a monoclinic distortion in space group Cc at 25 °C. The SR-XRD study combined with density functional theory (DFT) calculations demonstrates that BNT–5%BT exhibits a rotation of Ps in the monoclinic ac plane by 2° under an E of 70 kV/cm along the <001> pseudo-cubic direction, which is much larger than BNT.
Keywords: ferroelectric crystals; bismuth sodium titanate; BNT; spontaneous polarization; X-ray diffraction; synchrotron radiation X-ray diffraction; DFT; monoclinic; rhombohedral ferroelectric crystals; bismuth sodium titanate; BNT; spontaneous polarization; X-ray diffraction; synchrotron radiation X-ray diffraction; DFT; monoclinic; rhombohedral
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Ogino, M.; Noguchi, Y.; Kitanaka, Y.; Miyayama, M.; Moriyoshi, C.; Kuroiwa, Y. Polarization Rotation and Monoclinic Distortion in Ferroelectric (Bi0.5Na0.5)TiO3–BaTiO3 Single Crystals under Electric Fields. Crystals 2014, 4, 273-295.

AMA Style

Ogino M, Noguchi Y, Kitanaka Y, Miyayama M, Moriyoshi C, Kuroiwa Y. Polarization Rotation and Monoclinic Distortion in Ferroelectric (Bi0.5Na0.5)TiO3–BaTiO3 Single Crystals under Electric Fields. Crystals. 2014; 4(3):273-295.

Chicago/Turabian Style

Ogino, Motohiro; Noguchi, Yuji; Kitanaka, Yuuki; Miyayama, Masaru; Moriyoshi, Chikako; Kuroiwa, Yoshihiro. 2014. "Polarization Rotation and Monoclinic Distortion in Ferroelectric (Bi0.5Na0.5)TiO3–BaTiO3 Single Crystals under Electric Fields." Crystals 4, no. 3: 273-295.


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