Structural and electrical characteristics of Sr/Ti nonstoichiometric SrTiO3 ceramics

Xiaofei Wang; Qiubo Hu; Guozhong Zang; Chao Zhang; Liben Li

doi:10.1016/j.ssc.2017.08.009

Structural and electrical characteristics of Sr/Ti nonstoichiometric SrTiO₃ ceramics

Xiaofei Wang
, Qiubo Hu
, Guozhong Zang
, Chao Zhang
, Liben Li

School of Physics and Engineering
Henan University of Science and Technology
Department of Mathematics and Science
Luoyang Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The structural, dielectric, leakage current and ferroelectric properties of the SrTi_1+xO₃ (x = −0.06, −0.03, 0, 0.03 and 0.06) ceramics have been investigated. X-ray diffraction and Scanning electron microscope reveal the microstructure of the samples. The Sr/Ti ratio in STO ceramics effectively adjusts their dielectric and the dc leakage behavior. In addition, the room temperature ferroelectricity of the nonstoichiometric STO ceramics is successfully realized by P-E hysteresis loop measurement. It is found that the origins of ferroelectricity for the Ti-rich and Sr-rich STO ceramics are different and may be related to the lattice distortions, the polar nanoregions and antisite-like defects with net local dipoles.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Solid State Communications
Volume	266
DOIs	https://doi.org/10.1016/j.ssc.2017.08.009
State	Published - Oct 2017
Externally published	Yes

Keywords

A. SrTiO ceramics
B. solid-state reactions
C. nonstoichiometric
D. Ferroelectrics

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10.1016/j.ssc.2017.08.009

Cite this

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title = "Structural and electrical characteristics of Sr/Ti nonstoichiometric SrTiO3 ceramics",

abstract = "The structural, dielectric, leakage current and ferroelectric properties of the SrTi1+xO3 (x = −0.06, −0.03, 0, 0.03 and 0.06) ceramics have been investigated. X-ray diffraction and Scanning electron microscope reveal the microstructure of the samples. The Sr/Ti ratio in STO ceramics effectively adjusts their dielectric and the dc leakage behavior. In addition, the room temperature ferroelectricity of the nonstoichiometric STO ceramics is successfully realized by P-E hysteresis loop measurement. It is found that the origins of ferroelectricity for the Ti-rich and Sr-rich STO ceramics are different and may be related to the lattice distortions, the polar nanoregions and antisite-like defects with net local dipoles.",

keywords = "A. SrTiO ceramics, B. solid-state reactions, C. nonstoichiometric, D. Ferroelectrics",

author = "Xiaofei Wang and Qiubo Hu and Guozhong Zang and Chao Zhang and Liben Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = oct,

doi = "10.1016/j.ssc.2017.08.009",

language = "英语",

volume = "266",

pages = "1--5",

journal = "Solid State Communications",

issn = "0038-1098",

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TY - JOUR

T1 - Structural and electrical characteristics of Sr/Ti nonstoichiometric SrTiO3 ceramics

AU - Wang, Xiaofei

AU - Hu, Qiubo

AU - Zang, Guozhong

AU - Zhang, Chao

AU - Li, Liben

PY - 2017/10

Y1 - 2017/10

N2 - The structural, dielectric, leakage current and ferroelectric properties of the SrTi1+xO3 (x = −0.06, −0.03, 0, 0.03 and 0.06) ceramics have been investigated. X-ray diffraction and Scanning electron microscope reveal the microstructure of the samples. The Sr/Ti ratio in STO ceramics effectively adjusts their dielectric and the dc leakage behavior. In addition, the room temperature ferroelectricity of the nonstoichiometric STO ceramics is successfully realized by P-E hysteresis loop measurement. It is found that the origins of ferroelectricity for the Ti-rich and Sr-rich STO ceramics are different and may be related to the lattice distortions, the polar nanoregions and antisite-like defects with net local dipoles.

AB - The structural, dielectric, leakage current and ferroelectric properties of the SrTi1+xO3 (x = −0.06, −0.03, 0, 0.03 and 0.06) ceramics have been investigated. X-ray diffraction and Scanning electron microscope reveal the microstructure of the samples. The Sr/Ti ratio in STO ceramics effectively adjusts their dielectric and the dc leakage behavior. In addition, the room temperature ferroelectricity of the nonstoichiometric STO ceramics is successfully realized by P-E hysteresis loop measurement. It is found that the origins of ferroelectricity for the Ti-rich and Sr-rich STO ceramics are different and may be related to the lattice distortions, the polar nanoregions and antisite-like defects with net local dipoles.

KW - A. SrTiO ceramics

KW - B. solid-state reactions

KW - C. nonstoichiometric

KW - D. Ferroelectrics

UR - https://www.scopus.com/pages/publications/85028418248

U2 - 10.1016/j.ssc.2017.08.009

DO - 10.1016/j.ssc.2017.08.009

M3 - 文章

AN - SCOPUS:85028418248

SN - 0038-1098

VL - 266

SP - 1

EP - 5

JO - Solid State Communications

JF - Solid State Communications

ER -

Structural and electrical characteristics of Sr/Ti nonstoichiometric SrTiO₃ ceramics

Abstract

Keywords

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