The negative permittivity behavior of carbon nanotubes/yttrium iron garnet composites in the radio frequency

被引：4

作者：

Chen, Min ^{[1
]}

Wang, Zhongyang ^{[1
]}

Xie, Peitao ^{[1
]}

Zhang, Zidong ^{[1
]}

Pang, Laixue ^{[2
]}

Fan, Guohua ^{[1
]}

Liu, Yao ^{[1
]}

Fan, Runhua ^{[3
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, 17923 Jingshi Rd, Jinan 250061, Shandong, Peoples R China

[2] Shandong Jiaotong Univ, Res Ctr Rd Safety, Disaster Reduct Technol, Emergency, Jinan 250357, Shandong, Peoples R China

[3] Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 213卷

基金：

中国国家自然科学基金;

关键词：

Carbon nonotubes; Composite materials; Electrical properties; NEAR-FIELD; METAMATERIALS;

D O I：

10.1016/j.matlet.2017.11.099

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The composites with negative permittivity have drawn intensive attentions due to their promising candidates for double negative materials (DNMs). In this work, dielectric properties of the carbon nanotubes/yttrium iron garnet (CNTs/YIG) composites with different CNTs content have been researched in radio frequency. When CNTs content exceeds percolation threshold, the CNTs interconnect with each other and form conductive networks. Then the negative permittivity is obtained and can be attributed to the motion of charge carriers along the CNTs networks in the CNTs/YIG composites. In addition, with CNTs content raising, the gradually electron densities result in effective adjustment of negative permittivity in different frequency ranges. Therefore, the CNTs/YIG composites with tunable negative permittivity have great potential to be DNMs. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：282 / 285

页数：4

共 20 条

[1] Negative permittivity behavior and magnetic properties of C/YIG composites at radio frequency
Chen, Min
Wang, Xuai
Zhang, Zidong
Sun, Kai
Cheng, Chuanbing
Dang, Feng
[J]. MATERIALS & DESIGN, 2016, 97 : 454 - 458
[2] Tunable negative permittivity and permeability in FeNiMo/Al2O3 composites prepared by hot-pressing sintering
Chen, Min
Gao, Meng
Dang, Feng
Wang, Ning
Zhang, Baoqin
Pan, Shibing
[J]. CERAMICS INTERNATIONAL, 2016, 42 (05) : 6444 - 6449
[3] Negative permittivity behavior in Fe50Ni50/Al2O3 magnetic composite near percolation threshold
Chen, Min
Fan, Run-hua
Gao, Meng
Pan, Shi-bing
Yu, Ming-xun
Zhang, Zi-dong
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 381 : 105 - 108
[4] Negative permittivity behavior in the carbon/silicon nitride composites prepared by impregnation-carbonization approach
Cheng, Chuanbing
Yan, Kelan
Fan, Runhua
Qian, Lei
Zhang, Zidong
Sun, Kai
Chen, Min
[J]. CARBON, 2016, 96 : 678 - 684
[5] Preparation of polycrystalline yttrium iron garnet ceramics
Grosseau, P
Bachiorrini, A
Guilhot, B
[J]. POWDER TECHNOLOGY, 1997, 93 (03) : 247 - 251
[6] Ultrahigh dielectric loss of epsilon-negative copper granular composites
Hou, Qing
Sun, Kai
Xie, Peitao
Yan, Kelan
Fan, Runhua
Liu, Yao
[J]. MATERIALS LETTERS, 2016, 169 : 86 - 89
[7] Single Negative Metamaterials in Unstructured Polymer Nanocomposites Toward Selectable and Controllable Negative Permittivity
Li, Bin
Sui, Gang
Zhong, Wei-Hong
[J]. ADVANCED MATERIALS, 2009, 21 (41) : 4176 - +
[8] Enhanced permittivity in flexible carbon-fiber and acrylic-polyurethane composites
Pan, Shibing
Wang, Zhongyang
Chen, Min
Liu, Yao
Fan, Runhua
[J]. MATERIALS LETTERS, 2017, 205 : 44 - 47
[9] Pendry J, 2004, OPT PHOTONICS NEWS, V15, P32, DOI 10.1364/OPN.15.9.000032
[10] Controlling electromagnetic fields
Pendry, J. B.
Schurig, D.
Smith, D. R.
[J]. SCIENCE, 2006, 312 (5781) : 1780 - 1782

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