Enhanced spin thermoelectric effects in BN-embedded zigzag graphene nanoribbons

149 (a) Two-probe structure of the ZGNR embedded by four BN bonded pairs. (b) The corresponding transmission spectrum. (c) Charge current IC and (d) spin current IS as functions of ΔT at room temperature. At ΔT = 171 K, IC is zero, while IS has a positive value.