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The ab initio calculations are performed to investigate the nonlinear spin-polarized transport properties of the bare and hydrogenated zigzag silicene nanoribbons (ZSiNRs).The symmetrically hydrogenated and bare ZSiNRs have the antiferromagntric (AFM) ground state, while the ground state of the asymmetrically hydrogenated ZSiNRs are ferromagnetic (FM).