Spin Pumping into Carbon Nanotubes

Abstract

We theoretically study spin pumping from a ferromagnetic insulator (FI) into a carbon nanotube (CNT). By employing the bosonization method, we formulate the Gilbert damping induced by the FI/CNT junction, which can be measured by ferromagnetic resonance. We show that the increase in the Gilbert damping has a temperature dependence characteristic of a Luttinger liquid and is highly sensitive to the Luttinger parameter of the spin sector for a clean interface. We also discuss the experimental relevance of our findings based on numerical estimates, using realistic parameters.

10 pages, 4 figures

References in corpus (9)

• Microscopic theory of spin transport at the interface between the superconductor and a ferromagnetic insulator
• Spin gap and Luttinger liquid description of the NMR relaxation in carbon nanotubes
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Cited by in corpus (3)

• Spin Pumping into two-dimensional systems
• Theory of spin pumping and inverse Rashba-Edelstein effect in a two-dimensional electron gas
• Spin pumping into quantum spin chains