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Magnetic cloaking by a paramagnet/superconductor cylindrical tube in the critical state

Yampolskii, Sergey V. and Genenko, Yuri A. (2014):
Magnetic cloaking by a paramagnet/superconductor cylindrical tube in the critical state.
In: Applied Physics Letters, AIP Publishing LLC, p. 143504, 104, (14), ISSN 0003-6951,
[Online-Edition: http://dx.doi.org/10.1063/1.4870841],
[Article]

Abstract

Cloaking of static magnetic fields by a finite thickness type-II superconductor tube being in the full critical state and surrounded by a coaxial paramagnet shell is studied. On the basis of exact solutions to the Maxwell equations, it is shown that, in addition to previous studies assuming the Meissner state of the superconductor constituent, perfect cloaking is still realizable at fields higher than the field of full flux penetration into the superconductor and for arbitrary geometrical parameters of both constituents. It is also proven that simultaneously the structure is fully undetectable under the cloaking conditions. Different from the case of the Meissner state, the cloaking properties in the application relevant critical state are realized, however, only at a certain field magnitude.

Item Type: Article
Erschienen: 2014
Creators: Yampolskii, Sergey V. and Genenko, Yuri A.
Title: Magnetic cloaking by a paramagnet/superconductor cylindrical tube in the critical state
Language: English
Abstract:

Cloaking of static magnetic fields by a finite thickness type-II superconductor tube being in the full critical state and surrounded by a coaxial paramagnet shell is studied. On the basis of exact solutions to the Maxwell equations, it is shown that, in addition to previous studies assuming the Meissner state of the superconductor constituent, perfect cloaking is still realizable at fields higher than the field of full flux penetration into the superconductor and for arbitrary geometrical parameters of both constituents. It is also proven that simultaneously the structure is fully undetectable under the cloaking conditions. Different from the case of the Meissner state, the cloaking properties in the application relevant critical state are realized, however, only at a certain field magnitude.

Journal or Publication Title: Applied Physics Letters
Volume: 104
Number: 14
Publisher: AIP Publishing LLC
Uncontrolled Keywords: SUPERCONDUCTORS, METAMATERIAL, WIRE
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 11 Sep 2014 07:54
Official URL: http://dx.doi.org/10.1063/1.4870841
Identification Number: doi:10.1063/1.4870841
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