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- W2047722021 abstract "We investigate the spin-dependent thermoelectric effects in magnetic graphene in both diffusive and ballistic regimes. Employing the Boltzmann and Landauer formalisms we calculate the spin and charge Seebeck coefficients (thermopower) in magnetic graphene varying the spin splitting, temperature, and doping of the junction. It is found that while in normal graphene the temperature gradient drives a charge current, in the case of magnetic graphene a significant spin current is also established. In particular we show that in the undoped magnetic graphene in which different spin carriers belong to conduction and valence bands, a pure spin current is driven by the temperature gradient. In addition it is revealed that profound thermoelectric effects can be achieved at intermediate easily accessible temperatures when the thermal energy is comparable with Fermi energy ${k}_{B}Tensuremath{lesssim}ensuremath{mu}$. By further investigation of the spin-dependent Seebeck effect and a significantly large figure of merit for spin thermopower ${mathcal{Z}}_{mathrm{sp}}T$, we suggest magnetic graphene as a promising material for spin-caloritronics studies and applications." @default.
- W2047722021 created "2016-06-24" @default.
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- W2047722021 date "2015-04-08" @default.
- W2047722021 modified "2023-09-25" @default.
- W2047722021 title "Spin-dependent Seebeck effect and spin caloritronics in magnetic graphene" @default.
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- W2047722021 doi "https://doi.org/10.1103/physrevb.91.155407" @default.
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