Dielectric properties of polycrystalline MgB2

Yimin Cui; Liuwan Zhang; Rongming Wang

doi:10.1016/j.physc.2006.03.140

Dielectric properties of polycrystalline MgB₂

Yimin Cui^*
, Liuwan Zhang
, Rongming Wang

^*此作品的通讯作者

物理学院

Tsinghua University
Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

16 引用（Scopus）

摘要

The low-frequency (10³-10⁵ Hz) dielectric properties of polycrystalline MgB₂ were investigated as a function of temperature (25-285 K). The real and imaginary parts of the dielectric constants were higher than 10⁷, and they increased with the decreased temperature. No obvious frequency dependence of the real parts was found, which was consistent with the behavior of a good metal within the Drude model at low frequency. The results indicated the high dielectric constants were from the electrical conductivity of the superconductor.

源语言	英语
页（从-至）	29-32
页数	4
期刊	Physica C: Superconductivity and its Applications
卷	442
期	1
DOI	https://doi.org/10.1016/j.physc.2006.03.140
出版状态	已出版 - 1 8月 2006

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abstract = "The low-frequency (103-105 Hz) dielectric properties of polycrystalline MgB2 were investigated as a function of temperature (25-285 K). The real and imaginary parts of the dielectric constants were higher than 107, and they increased with the decreased temperature. No obvious frequency dependence of the real parts was found, which was consistent with the behavior of a good metal within the Drude model at low frequency. The results indicated the high dielectric constants were from the electrical conductivity of the superconductor.",

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KW - Dielectric properties

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Dielectric properties of polycrystalline MgB2

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Dielectric properties of polycrystalline MgB₂