Improvement of dielectric loss of (Ba,Sr)(Ti,Zr)O3 ferroelectrics for tunable devices

Jong Yoon Ha; Ji Won Choi; Chong Yun Kang; Jin Sang Kim; Seok Jin Yoon; Doo Jin Choi; Hyun Jai Kim

doi:10.1016/j.jeurceramsoc.2006.11.003

Improvement of dielectric loss of (Ba,Sr)(Ti,Zr)O₃ ferroelectrics for tunable devices

Jong Yoon Ha, Ji Won Choi, Chong Yun Kang, Jin Sang Kim, Seok Jin Yoon, Doo Jin Choi, Hyun Jai Kim

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

24 Citations (Scopus)

Abstract

(Ba_0.6Sr_0.4)(Ti_1-xZr_x)O₃ (0.05 ≤ x ≤ 0.3) ferroelectric materials have cubic perovskite structure and show paraelectric properties at room temperature. Curie point shifted to a negative value as increasing Zr content in (Ba_0.6Sr_0.4)(Ti_1-xZr_x)O₃ system. When Zr substituted 0.1 mol, the dielectric constant, dielectric loss, tunability, Curie point and FOM were 4500, 0.0005, 63%, -1.6 °C and 1260, respectively. This composition shows excellent microwave dielectric properties than those of (Ba_0.6Sr_0.4)TiO₃ ferroelectrics, which are limelight materials for tunable devices such as varactors, phase shifters and frequency agile filters, etc.

Original language	English
Pages (from-to)	2747-2751
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	27
Issue number	8-9 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2006.11.003
Publication status	Published - 2007
Externally published	Yes

Keywords

Dielectrics
Ferroelectrics
Perovskites
Tunable devices

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2006.11.003

Cite this

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title = "Improvement of dielectric loss of (Ba,Sr)(Ti,Zr)O3 ferroelectrics for tunable devices",

abstract = "(Ba0.6Sr0.4)(Ti1-xZrx)O3 (0.05 ≤ x ≤ 0.3) ferroelectric materials have cubic perovskite structure and show paraelectric properties at room temperature. Curie point shifted to a negative value as increasing Zr content in (Ba0.6Sr0.4)(Ti1-xZrx)O3 system. When Zr substituted 0.1 mol, the dielectric constant, dielectric loss, tunability, Curie point and FOM were 4500, 0.0005, 63%, -1.6 °C and 1260, respectively. This composition shows excellent microwave dielectric properties than those of (Ba0.6Sr0.4)TiO3 ferroelectrics, which are limelight materials for tunable devices such as varactors, phase shifters and frequency agile filters, etc.",

keywords = "Dielectrics, Ferroelectrics, Perovskites, Tunable devices",

author = "Ha, {Jong Yoon} and Choi, {Ji Won} and Kang, {Chong Yun} and Kim, {Jin Sang} and Yoon, {Seok Jin} and Choi, {Doo Jin} and Kim, {Hyun Jai}",

year = "2007",

doi = "10.1016/j.jeurceramsoc.2006.11.003",

language = "English",

volume = "27",

pages = "2747--2751",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "8-9 SPEC. ISS.",

}

TY - JOUR

T1 - Improvement of dielectric loss of (Ba,Sr)(Ti,Zr)O3 ferroelectrics for tunable devices

AU - Ha, Jong Yoon

AU - Choi, Ji Won

AU - Kang, Chong Yun

AU - Kim, Jin Sang

AU - Yoon, Seok Jin

AU - Choi, Doo Jin

AU - Kim, Hyun Jai

PY - 2007

Y1 - 2007

N2 - (Ba0.6Sr0.4)(Ti1-xZrx)O3 (0.05 ≤ x ≤ 0.3) ferroelectric materials have cubic perovskite structure and show paraelectric properties at room temperature. Curie point shifted to a negative value as increasing Zr content in (Ba0.6Sr0.4)(Ti1-xZrx)O3 system. When Zr substituted 0.1 mol, the dielectric constant, dielectric loss, tunability, Curie point and FOM were 4500, 0.0005, 63%, -1.6 °C and 1260, respectively. This composition shows excellent microwave dielectric properties than those of (Ba0.6Sr0.4)TiO3 ferroelectrics, which are limelight materials for tunable devices such as varactors, phase shifters and frequency agile filters, etc.

AB - (Ba0.6Sr0.4)(Ti1-xZrx)O3 (0.05 ≤ x ≤ 0.3) ferroelectric materials have cubic perovskite structure and show paraelectric properties at room temperature. Curie point shifted to a negative value as increasing Zr content in (Ba0.6Sr0.4)(Ti1-xZrx)O3 system. When Zr substituted 0.1 mol, the dielectric constant, dielectric loss, tunability, Curie point and FOM were 4500, 0.0005, 63%, -1.6 °C and 1260, respectively. This composition shows excellent microwave dielectric properties than those of (Ba0.6Sr0.4)TiO3 ferroelectrics, which are limelight materials for tunable devices such as varactors, phase shifters and frequency agile filters, etc.

KW - Dielectrics

KW - Ferroelectrics

KW - Perovskites

KW - Tunable devices

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U2 - 10.1016/j.jeurceramsoc.2006.11.003

DO - 10.1016/j.jeurceramsoc.2006.11.003

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SN - 0955-2219

VL - 27

SP - 2747

EP - 2751

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 8-9 SPEC. ISS.

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