Spin diode based on a single-wall carbon nanotube

Details Spin diode based on a single-wall carbon nanotube Spin diode based on a single-wall carbon nanotube

2008-03-15

arxiv.org/abs/0803.2279v1

Applied Physics Letters 92, 103127 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1063/1.2894224

Electronic transport through a single-wall metallic carbon nanotube weakly coupled to one ferromagnetic and one nonmagnetic lead is analyzed in the sequential tunneling limit. It is shown that both the spin and charge currents flowing through such systems are highly asymmetric with respect to the bias reversal. As a consequence, nanotubes coupled to one nonmagnetic and one ferromagnetic lead can be effectively used as spin diodes whose functionality can be additionally controlled by a gate voltage.

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