Please use this identifier to cite or link to this item: https://doi.org/10.1021/nl2000049
Title: Graphene-based spin caloritronics
Authors: Zeng, M. 
Feng, Y. 
Liang, G. 
Keywords: Graphene
spin caloritronics
spin Seebeck effect
spintronics
thermal magnetoresistance effect
thermal spin components
Issue Date: 9-Mar-2011
Citation: Zeng, M., Feng, Y., Liang, G. (2011-03-09). Graphene-based spin caloritronics. Nano Letters 11 (3) : 1369-1373. ScholarBank@NUS Repository. https://doi.org/10.1021/nl2000049
Abstract: Thermally induced spin transport in magnetized zigzag graphene nanoribbons (M-ZGNRs) is explored using first-principles calculations. By applying temperature difference between the source and the drain of a M-ZGNR device, spin-up and spin-down currents flowing in opposite directions can be induced. This spin Seebeck effect in M-ZGNRs can be attributed to the asymmetric electron-hole transmission spectra of spin-up and spin-down electrons. Furthermore, these spin currents can be modulated and completely polarized by tuning the back gate voltage. Finally, thermal magnetoresistance of ZGNRs between ground states and magnetized states can reach 104% without an external bias. Our results indicate the possibility of developing graphene-based spin caloritronic devices. © 2011 American Chemical Society.
Source Title: Nano Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/82427
ISSN: 15306984
DOI: 10.1021/nl2000049
Appears in Collections:Staff Publications

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