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Islam F, Benjamin C. Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene. J Phys Condens Matter. 2016;28(3):035305doi: 10.1088/0953-8984/28/3/035305.
Islam, F., & Benjamin, C. (2016). Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene. Journal of physics. Condensed matter : an Institute of Physics journal, 28(3), 035305. https://doi.org/10.1088/0953-8984/28/3/035305
Islam, Firoz, and Benjamin, Colin. "Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene." Journal of physics. Condensed matter : an Institute of Physics journal vol. 28,3 (2016): 035305. doi: https://doi.org/10.1088/0953-8984/28/3/035305
Islam F, Benjamin C. Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene. J Phys Condens Matter. 2016 Jan 27;28(3):035305. doi: 10.1088/0953-8984/28/3/035305. Epub 2016 Jan 06. PMID: 26732985.
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J Phys Condens Matter. 2016 Jan 27;28(3):035305. doi: 10.1088/0953-8984/28/3/035305. Epub 2016 Jan 06.

Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene.

Journal of physics. Condensed matter : an Institute of Physics journal

Firoz Islam, Colin Benjamin

Affiliations

  1. National institute of Science education and Research, Bhubaneswar 751005, India.

PMID: 26732985 DOI: 10.1088/0953-8984/28/3/035305

Abstract

The spin-orbit effect in graphene is too muted to have any observable significance with respect to its application in spintronics. However, graphene technology is too valuable to be rendered impotent to spin transport. In this communication we look at the effect of adiabatically twisting a single-molecule magnet embedded in a graphene monolayer. Surprisingly, we see that pure spin currents (zero charge current) can be generated from the system via quantum pumping. In addition we also see that spin-selective current can be pumped from the system. The pure spin current seen is quite resilient to temperature while disorder has a limited effect. Furthermore, the direction of these spin-pumped currents can be easily and exclusively controlled by the magnetization of the single-molecule magnet, with disorder having no effect on the magnetization control of the pumped spin currents.

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