| 摘要： | An efficient method,without numerical diagonalization of a huge Hamiltonian matrix and calculation of a tedious Green's function,is proposed to calculate the exact energy spectrum and dynamical conductivity in gated AA-stacking N-layer graphene(AANLG)with intrinsic spin-orbital coupling(SOC).The 2N X 2N tight-binding Hamiltonian matrix,velocity operator and Green's function representation of AANLG are simultaneously reduced to N2 X 2 diagonal block matrices througt a proper transformation matrix.Gated AANLG with intrinsic SOC is reduced to N graphene-like layers. |
