Ferroelectric relaxor properties of (1 - X)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 ceramics

C. W. Cho; M. R. Cha; J. Y. Jang; S. H. Lee; D. J. Kim; S. Park; J. S. Bae; S. D. Bu; S. Lee; J. Huh

doi:10.1016/j.cap.2012.03.006

Ferroelectric relaxor properties of (1 - X)K _0.5Na _0.5NbO ₃-xBa _0.5Ca _0.5TiO ₃ ceramics

C. W. Cho
, M. R. Cha
, J. Y. Jang
, S. H. Lee
, D. J. Kim
, S. Park^*
, J. S. Bae
, S. D. Bu
, S. Lee
, J. Huh

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

11 Scopus citations

Abstract

The Ba _0.5Ca _0.5TiO ₃ (BCT) composition dependent dielectric and structural properties of (1-x)K _0.5Na _0.5NbO ₃-xBa _0.5Ca _0.5TiO ₃ powders were investigated. Room temperature x-ray diffraction revealed the powder structure to transform from orthorhombic to cubic with increasing BCT composition. The frequency dependent dielectric constant measurements revealed a shift in the temperature of the maximum dielectric constant for at frequencies, suggesting that the system exhibits ferroelectric relaxor behavior. The system containing 15% BCT showed the closest calculated Curie-Weiss exponent to 2, which the exponent for a relaxor ferroelectric.

Original language	English
Pages (from-to)	1266-1271
Number of pages	6
Journal	Current Applied Physics
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/j.cap.2012.03.006
State	Published - 2012.09

Keywords

Dielectric constant
Relaxor ferroelectric
X-ray diffraction

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

Access to Document

10.1016/j.cap.2012.03.006

Cite this

@article{9f35c2be42e04df5b0e7607c6218c2e6,

title = "Ferroelectric relaxor properties of (1 - X)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 ceramics",

abstract = "The Ba 0.5Ca 0.5TiO 3 (BCT) composition dependent dielectric and structural properties of (1-x)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 powders were investigated. Room temperature x-ray diffraction revealed the powder structure to transform from orthorhombic to cubic with increasing BCT composition. The frequency dependent dielectric constant measurements revealed a shift in the temperature of the maximum dielectric constant for at frequencies, suggesting that the system exhibits ferroelectric relaxor behavior. The system containing 15\% BCT showed the closest calculated Curie-Weiss exponent to 2, which the exponent for a relaxor ferroelectric.",

keywords = "Dielectric constant, Relaxor ferroelectric, X-ray diffraction",

author = "Cho, \{C. W.\} and Cha, \{M. R.\} and Jang, \{J. Y.\} and Lee, \{S. H.\} and Kim, \{D. J.\} and S. Park and Bae, \{J. S.\} and Bu, \{S. D.\} and S. Lee and J. Huh",

year = "2012",

month = sep,

doi = "10.1016/j.cap.2012.03.006",

language = "English",

volume = "12",

pages = "1266--1271",

journal = "Current Applied Physics",

issn = "1567-1739",

number = "5",

}

TY - JOUR

T1 - Ferroelectric relaxor properties of (1 - X)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 ceramics

AU - Cho, C. W.

AU - Cha, M. R.

AU - Jang, J. Y.

AU - Lee, S. H.

AU - Kim, D. J.

AU - Park, S.

AU - Bae, J. S.

AU - Bu, S. D.

AU - Lee, S.

AU - Huh, J.

PY - 2012/9

Y1 - 2012/9

N2 - The Ba 0.5Ca 0.5TiO 3 (BCT) composition dependent dielectric and structural properties of (1-x)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 powders were investigated. Room temperature x-ray diffraction revealed the powder structure to transform from orthorhombic to cubic with increasing BCT composition. The frequency dependent dielectric constant measurements revealed a shift in the temperature of the maximum dielectric constant for at frequencies, suggesting that the system exhibits ferroelectric relaxor behavior. The system containing 15% BCT showed the closest calculated Curie-Weiss exponent to 2, which the exponent for a relaxor ferroelectric.

AB - The Ba 0.5Ca 0.5TiO 3 (BCT) composition dependent dielectric and structural properties of (1-x)K 0.5Na 0.5NbO 3-xBa 0.5Ca 0.5TiO 3 powders were investigated. Room temperature x-ray diffraction revealed the powder structure to transform from orthorhombic to cubic with increasing BCT composition. The frequency dependent dielectric constant measurements revealed a shift in the temperature of the maximum dielectric constant for at frequencies, suggesting that the system exhibits ferroelectric relaxor behavior. The system containing 15% BCT showed the closest calculated Curie-Weiss exponent to 2, which the exponent for a relaxor ferroelectric.

KW - Dielectric constant

KW - Relaxor ferroelectric

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/84861575031

U2 - 10.1016/j.cap.2012.03.006

DO - 10.1016/j.cap.2012.03.006

M3 - Journal article

AN - SCOPUS:84861575031

SN - 1567-1739

VL - 12

SP - 1266

EP - 1271

JO - Current Applied Physics

JF - Current Applied Physics

IS - 5

ER -