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Magnetic Illusion: Transforming a Magnetic Object into Another Object by Negative Permeability

Rosa Mach-Batlle, Albert Parra, Sergi Laut, Nuria Del-Valle, Carles Navau, and Alvaro Sanchez*

  • Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Catalonia, Spain

  • *alvar.sanchez@uab.cat
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Phys. Rev. Applied 9, 034007 – Published 12 March, 2018

DOI: https://doi.org/10.1103/PhysRevApplied.9.034007

Abstract

We theoretically predict and experimentally verify the illusion of transforming the magnetic signature of a 3D object into that of another arbitrary object. This is done by employing negative-permeability materials, which we demonstrate can be emulated by tailored sets of currents. The experimental transformation of the magnetic response of a ferromagnet into that of its antagonistic material, a superconductor, is presented to confirm the theory. The emulation of negative-permeability materials by currents provides a pathway for designing devices for controlling magnetic fields.

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Phys. Rev. Applied 9, 034007– Published 12 March, 2018
  • Received 28 April 2017
  • Revised 11 October 2017
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