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Register a new userTwo-dimensional arrays of superconducting and soft magnetic strips as dc magnetic metamaterials
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Authors
Yasunori Mawatari
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We have theoretically investigated the magnetic response of two-dimensional (2D) arrays of superconducting and soft magnetic strips, which are regarded as models of dc magnetic metamaterials. The anisotropy of the macroscopic permeabilities depends on whether the applied magnetic field is parallel to the wide surface of the strips ($mu_{parallel}$) or perpendicular ($mu_{perp}$). For the 2D arrays of superconducting strips, $0<mu_{perp}/mu_0ll mu_{parallel}/mu_0simeq 1$, whereas for the 2D arrays of soft magnetic strips, $mu_{parallel}/mu_0ggmu_{perp}/mu_0simeq 1$, where $mu_0$ is the vacuum permeability. We also demonstrate that strong anisotropy of the macroscopic permeability can be obtained for hybrid arrays of superconducting and soft magnetic strips, where $mu_{parallel}/mu_0gg 1gg mu_{perp}/mu_0>0$.
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