Scattering from bulk material with topologically insulating surface states

Author(s): Akhlesh Lakhtakia and Tom G. Mackay
Source: FERMAT, Volume 21, Communications 12, May-Jun., 2017



Abstract: A homogeneous, linear, bianisotropic material that occupies a bounded region V-in, and whose surface S is charge-neutral and current-neutral, was considered. Analysis of the frequency domain Maxwell postulates revealed that the axionic piece vanishes from both the partial differential equations valid throughout V-in and the boundary conditions on S. Thus, the Post constraint is reaffirmed. Also, scattering studies revealed that whatever scattering effect may be attributed to the axionic piece can instead be attributed to a surface admittance parameter quantitating topologically insulalating surface states.

Keywords: anionic piece, depolarization, surface admittance, surface state, topological insulator


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Scattering from bulk material with topologically insulating surface states









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