Permittivity and its temperature dependence in hexagonal structure BN dominated by the local electric field

This paper presents an analysis of the local electric field in hexagonal boron nitride （h-BN） by introducing a modified parameter. Based on the determination of the modified parameter of h-BN, the revised Lorenz equation is developed. Then the permittivity at high temperature and in the microwave fr...

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Bibliographic Details
Published inChinese physics B Vol. 21; no. 7; pp. 505 - 512
Main Author 张婷 吴孟强 张树人 熊杰 王金明 张大海 何凤梅 李仲平
Format Journal Article
LanguageEnglish
Published 01.07.2012
Subjects
Boron nitride
Dielectric constant
Electric fields
Lorenz equations
Lorenz方程
Mathematical analysis
Microwave frequencies
Permittivity
Positive temperature coefficient
Temperature dependence
介电常数
六角形
国民
地电场
正温度系数
温度依赖
结构
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Summary:This paper presents an analysis of the local electric field in hexagonal boron nitride （h-BN） by introducing a modified parameter. Based on the determination of the modified parameter of h-BN, the revised Lorenz equation is developed. Then the permittivity at high temperature and in the microwave frequency is investigated. In addition, this equation is derived for evaluating the temperature coefficient of the permittivity of h-BN. The analyses show that the permittivity increases with increasing temperature, which is mainly attributed to the positive temperature coefficient of the ionic polarizability.
Bibliography:hexagonal boron nitride, permittivity, temperature dependence, microwave frequency
Zhang Ting Wu Meng-Qiang, Zhang Shu-Ren Xiong Jie, Wang Jin-Ming, Zhang Da-Hai, He Feng-Mei, and Li Zhong-Ping a） State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China b） Aerospace Research Institutes of Materials and Processing Technology, Beijing 100076, China
11-5639/O4
This paper presents an analysis of the local electric field in hexagonal boron nitride （h-BN） by introducing a modified parameter. Based on the determination of the modified parameter of h-BN, the revised Lorenz equation is developed. Then the permittivity at high temperature and in the microwave frequency is investigated. In addition, this equation is derived for evaluating the temperature coefficient of the permittivity of h-BN. The analyses show that the permittivity increases with increasing temperature, which is mainly attributed to the positive temperature coefficient of the ionic polarizability.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/7/077701