Tunable negative permeability in an isotropic dielectric composite

Qian Zhao; Bo Du; Lei Kang; Hongjie Zhao; Qin Xie; Bo Li; Xing Zhang; Ji Zhou; Longtu Li; Yonggang Meng

doi:10.1063/1.2841811

Tunable negative permeability in an isotropic dielectric composite

Qian Zhao, Bo Du, Lei Kang, Hongjie Zhao, Qin Xie, Bo Li, Xing Zhang, Ji Zhou, Longtu Li, Yonggang Meng

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

88 Scopus citations

Abstract

A tunable isotropic negative effective permeability is experimentally demonstrated in a three-dimensional (3D) dielectric composite consisting of dielectric ceramic cube arrays by temperature changing. It shows that a strong subwavelength magnetic resonance can be excited in dielectric cubes corresponding to the first Mie resonance mode and can be continuously and reversibly adjusted from 13.65 to 19.28 GHz with the temperature changing from -15 to 35 °C. Accordingly, negative permeability can be performed in the frequency range of about 6 GHz by adjusting the temperature. It provides a convenient route to design adaptive metamaterials and 3D invisible cloak.

Original language	English (US)
Article number	051106
Journal	Applied Physics Letters
Volume	92
Issue number	5
DOIs	https://doi.org/10.1063/1.2841811
State	Published - 2008

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2841811

Cite this

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title = "Tunable negative permeability in an isotropic dielectric composite",

abstract = "A tunable isotropic negative effective permeability is experimentally demonstrated in a three-dimensional (3D) dielectric composite consisting of dielectric ceramic cube arrays by temperature changing. It shows that a strong subwavelength magnetic resonance can be excited in dielectric cubes corresponding to the first Mie resonance mode and can be continuously and reversibly adjusted from 13.65 to 19.28 GHz with the temperature changing from -15 to 35 °C. Accordingly, negative permeability can be performed in the frequency range of about 6 GHz by adjusting the temperature. It provides a convenient route to design adaptive metamaterials and 3D invisible cloak.",

author = "Qian Zhao and Bo Du and Lei Kang and Hongjie Zhao and Qin Xie and Bo Li and Xing Zhang and Ji Zhou and Longtu Li and Yonggang Meng",

note = "Funding Information: This work was supported by the National Science Foundation of China under Grant Nos. 50425204, 50572043, 50632030, 60608016, and 10774087, and by the Postdoctoral Science Foundation under Grant Nos. 20060390043 and 20060400054. The authors gratefully acknowledge discussions with Professor Z. X. Yue, Dr. C. H. Liang, R. Wang, and F. Zhao.",

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doi = "10.1063/1.2841811",

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volume = "92",

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TY - JOUR

T1 - Tunable negative permeability in an isotropic dielectric composite

AU - Zhao, Qian

AU - Du, Bo

AU - Kang, Lei

AU - Zhao, Hongjie

AU - Xie, Qin

AU - Li, Bo

AU - Zhang, Xing

AU - Zhou, Ji

AU - Li, Longtu

AU - Meng, Yonggang

N1 - Funding Information: This work was supported by the National Science Foundation of China under Grant Nos. 50425204, 50572043, 50632030, 60608016, and 10774087, and by the Postdoctoral Science Foundation under Grant Nos. 20060390043 and 20060400054. The authors gratefully acknowledge discussions with Professor Z. X. Yue, Dr. C. H. Liang, R. Wang, and F. Zhao.

PY - 2008

Y1 - 2008

N2 - A tunable isotropic negative effective permeability is experimentally demonstrated in a three-dimensional (3D) dielectric composite consisting of dielectric ceramic cube arrays by temperature changing. It shows that a strong subwavelength magnetic resonance can be excited in dielectric cubes corresponding to the first Mie resonance mode and can be continuously and reversibly adjusted from 13.65 to 19.28 GHz with the temperature changing from -15 to 35 °C. Accordingly, negative permeability can be performed in the frequency range of about 6 GHz by adjusting the temperature. It provides a convenient route to design adaptive metamaterials and 3D invisible cloak.

AB - A tunable isotropic negative effective permeability is experimentally demonstrated in a three-dimensional (3D) dielectric composite consisting of dielectric ceramic cube arrays by temperature changing. It shows that a strong subwavelength magnetic resonance can be excited in dielectric cubes corresponding to the first Mie resonance mode and can be continuously and reversibly adjusted from 13.65 to 19.28 GHz with the temperature changing from -15 to 35 °C. Accordingly, negative permeability can be performed in the frequency range of about 6 GHz by adjusting the temperature. It provides a convenient route to design adaptive metamaterials and 3D invisible cloak.

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VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

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ER -

Tunable negative permeability in an isotropic dielectric composite

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