Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO3-BaZrO3 multilayer ceramics

Yi Zhao; Dongsheng Ran; Fanyi Kong; Lu Cheng; Wenfeng Liu

doi:10.1016/j.matlet.2025.139839

Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO₃-BaZrO₃ multilayer ceramics

Yi Zhao
, Dongsheng Ran
, Fanyi Kong
, Lu Cheng
, Wenfeng Liu

School of Electrical Engineering

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

Abstract

Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.

Original language	English
Article number	139839
Journal	Materials Letters
Volume	406
DOIs	https://doi.org/10.1016/j.matlet.2025.139839
State	Published - 1 Mar 2026

Keywords

Dielectric tunability
Multilayer ceramics
Temperature stability

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10.1016/j.matlet.2025.139839

Cite this

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title = "Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO3-BaZrO3 multilayer ceramics",

abstract = "Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7\% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7\% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.",

keywords = "Dielectric tunability, Multilayer ceramics, Temperature stability",

author = "Yi Zhao and Dongsheng Ran and Fanyi Kong and Lu Cheng and Wenfeng Liu",

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year = "2026",

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doi = "10.1016/j.matlet.2025.139839",

language = "英语",

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TY - JOUR

T1 - Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO3-BaZrO3 multilayer ceramics

AU - Zhao, Yi

AU - Ran, Dongsheng

AU - Kong, Fanyi

AU - Cheng, Lu

AU - Liu, Wenfeng

PY - 2026/3/1

Y1 - 2026/3/1

N2 - Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.

AB - Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.

KW - Dielectric tunability

KW - Multilayer ceramics

KW - Temperature stability

UR - https://www.scopus.com/pages/publications/105022661616

U2 - 10.1016/j.matlet.2025.139839

DO - 10.1016/j.matlet.2025.139839

M3 - 文章

AN - SCOPUS:105022661616

SN - 0167-577X

VL - 406

JO - Materials Letters

JF - Materials Letters

M1 - 139839

ER -

Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO₃-BaZrO₃ multilayer ceramics

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Keywords

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