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Magnetic detectability of a finite size paramagnet/superconductor cylindrical cloak

Yampolskii, Sergey V. and Genenko, Yuri A. (2014):
Magnetic detectability of a finite size paramagnet/superconductor cylindrical cloak.
In: Applied Physics Letters, AIP Publishing LLC, pp. 033501, 104, (3), ISSN 0003-6951,
[Online-Edition: http://dx.doi.org/10.1063/1.4862265],
[Article]

Abstract

Cloaking of static magnetic fields by a finite thickness type-II superconductor tube surrounded by a coaxial paramagnet shell is studied. On the basis of exact solutions to the London and Maxwell equations, it is shown that perfect cloaking is realizable for arbitrary geometrical parameters including the thin film case for both constituents. In contrast to the previous approximate studies assuming perfect diamagnetism of the superconductor constituent, it is proven that cloaking provides simultaneously full undetectability, that is the magnetic moment of the structure completely vanishes as well as all high-order multipole moments as soon as the uniform field outside remains unaffected.

Item Type: Article
Erschienen: 2014
Creators: Yampolskii, Sergey V. and Genenko, Yuri A.
Title: Magnetic detectability of a finite size paramagnet/superconductor cylindrical cloak
Language: English
Abstract:

Cloaking of static magnetic fields by a finite thickness type-II superconductor tube surrounded by a coaxial paramagnet shell is studied. On the basis of exact solutions to the London and Maxwell equations, it is shown that perfect cloaking is realizable for arbitrary geometrical parameters including the thin film case for both constituents. In contrast to the previous approximate studies assuming perfect diamagnetism of the superconductor constituent, it is proven that cloaking provides simultaneously full undetectability, that is the magnetic moment of the structure completely vanishes as well as all high-order multipole moments as soon as the uniform field outside remains unaffected.

Journal or Publication Title: Applied Physics Letters
Volume: 104
Number: 3
Publisher: AIP Publishing LLC
Uncontrolled Keywords: Superconductors, Magnets, Superconducting magnets, Magnetic fields, Composite superconductors, External field. Magnetic moments. Hole doped superconductors, Maxwell equations, Rotating flow
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: 17 Feb 2014 11:44
Official URL: http://dx.doi.org/10.1063/1.4862265
Identification Number: doi:10.1063/1.4862265
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