| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Permittivity and its temperature dependence in hexagonal structure BN dominated by the local electric field |
| Zhang Ting(张婷)a), Wu Meng-Qiang(吴孟强)a)†, Zhang Shu-Ren(张树人)a), Xiong Jie(熊杰)a), Wang Jin-Ming(王金明)b), Zhang Da-Hai(张大海)b), He Feng-Mei(何凤梅) b), and Li Zhong-Ping(李仲平)b) |
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 |
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Abstract This paper presents an analysis of the local electric field in the 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 the increasing temperature, which is mainly attributed to the positive temperature coefficient of the ionic polarizability.
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Received: 10 September 2011
Revised: 21 February 2012
Accepted manuscript online:
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PACS:
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77.22.-d
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(Dielectric properties of solids and liquids)
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77.22.Ch
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(Permittivity (dielectric function))
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78.20.Bh
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(Theory, models, and numerical simulation)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 50902017) and the Scientific Reserch Fund of Sichuan Provincial Education Department, China (Grant No. 09ZC029). |
Corresponding Authors:
Wu Meng-Qiang
E-mail: mwu@uestc.edu.cn
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Cite this article:
Zhang Ting(张婷), Wu Meng-Qiang(吴孟强), Zhang Shu-Ren(张树人), Xiong Jie(熊杰), Wang Jin-Ming(王金明), Zhang Da-Hai(张大海), He Feng-Mei(何凤梅), and Li Zhong-Ping(李仲平) Permittivity and its temperature dependence in hexagonal structure BN dominated by the local electric field 2012 Chin. Phys. B 21 077701
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