Both are expected to have the characteristics of massless Dirac fermions that carry charge, but it this is only predicted for silicene and has not been observed, likely because it is expected to only occur with free-standing silicene which has not been synthesized.
Both are expected to have the characteristics of massless Dirac fermions. These characteristics of massless Dirac fermions carry charge. It this is only predicted for silicene. It this has not been observed. It is expected to only occur with free-standing silicene. This silicene has not been synthesized.