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24 April 2024 |
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Article overview
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Hall-effect sign-inversion in a realizable 3D metamaterial | | Muamer Kadic
; Robert Schittny
; Tiemo Bückmann
; Christian Kern
; Martin Wegener
; | | Date: |
20 Mar 2015 | | Abstract: | In 2009, Briane and Milton proved mathematically the existence of
three-dimensional isotropic metamaterials with a classical Hall coefficient
which is negative with respect to that of all of the metamaterial constituents.
Here, we significantly simplify their blueprint towards an architecture
composed of only a single constituent material in vacuum/air, which can be seen
as a special type of porosity. We show that the sign of the Hall voltage is
determined by a separation parameter between adjacent tori. This qualitative
behavior is robust even for only a small number of metamaterial unit cells. The
combination of simplification and robustness brings experimental verifications
of this striking sign-inversion into reach. | | Source: | arXiv, 1503.6118 | | Services: | Forum | Review | PDF | Favorites | |
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