We show that graphene with Mn adatoms trapped at single vacancies feature spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a way it presents either a total spin polarized current, flowing in one given direction, or currents for both spins flowing in opposite directions without net charge transport. Moreover, we show that the thermal magnetoresistance can be tuned between −100% and +100% by varying agate potential.
@article{arxiv.1305.0316,
title = {Spin Caloritronics in graphene with Mn},
author = {Alberto Torres and Matheus P. Lima and A. Fazzio and Antônio J. R. da Silva},
journal= {arXiv preprint arXiv:1305.0316},
year = {2014}
}
Comments
The following article has been submitted to Applied Physics Letters. After it is published, it will be found at (http://apl.aip.org/)