Published May 2024 | Version v1
Journal article Metadata-only

Shape and response of polar nanoregions analyzed by diffuse scattering under electric field

Creators

  • 1. Nagoya City University, Graduate School of Science, Nagoya, Aichi (Japan)

Description

We analyzed the shape and response of polar nanoregions (PNRs) of a relaxor ferroelectric under a static electric field from X-ray diffuse scattering intensities measured using synchrotron radiation. The diffuse scattering intensities around each reciprocal lattice point were well reproduced using an ellipsoidal PNR model with the polarization along [110]. The electric field dependence of diffuse scattering intensities strongly couples with the piezoelectric lattice strain and ferroelectric polarization switching, and was explained by changes of volume ratios of the PNRs with different orientations. (author)

Abstract (Japanese)

放射光を用いて直流電場下で測定したリラクサー強誘電体のX線散漫散乱強度分布から,分極ナノ領域 (PNR) の形態と電場応答を解析した。各逆格子点周囲に観測された散漫散乱強度分布は,[110]に向いた分極を持つ楕円体型のPNRモデルを用いてよく再現された。散漫散乱強度分布の電場変化は,圧電格子歪みと強誘電分極反転に強く相関しており,配向の異なるPNRの体積分率の変化によって説明された。(著者)

Additional details

Additional titles

Original title (Japanese)
電場下散漫散乱計測で見た分極ナノ領域の形態と応答
Augmented title (English)
(free terms) Polar Nanoregions (PNRs); Diffuse Scattering; Electric Field; Relaxor Ferroelectric; Synchrotron Radiation; Reciprocal Lattice Point; Ellipsoidal PNR Model; Polarization; [110] Orientation; Piezoelectric Lattice Strain; Ferroelectric Polarization Switching; Volume Ratios; Orientation Dependence; Static Electric Field; X-ray; Intensity Measurement; Shape Analysis; Response Analysis; Lattice Point Analysis; Diffuse Scattering Intensities

Publishing Information

Journal Title
Hoshako
Journal Volume
37
Journal Issue
3
Series
雑誌名:放射光
Journal Page Range
p. 187-194
ISSN
0914-9287

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
55081332
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
DIFFUSE SCATTERING; ELECTRIC FIELDS; FERROELECTRIC MATERIALS; MILLER INDICES; ORIENTATION; PIEZOELECTRICITY; POLARIZATION; SPRING-8 STORAGE RING; STRAINS; SYNCHROTRON RADIATION; X RADIATION
Descriptors DEC
BREMSSTRAHLUNG; COHERENT SCATTERING; DIELECTRIC MATERIALS; DIFFRACTION; ELECTRICITY; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; MATERIALS; RADIATION SOURCES; RADIATIONS; SCATTERING; STORAGE RINGS; SYNCHROTRON RADIATION SOURCES

Optional Information

Notes
28 refs., 7 figs., 1 tab.