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arXiv · 2303.01343

Spin Pumping into Carbon Nanotubes

Kota Fukuzawa·Takeo Kato·Mamoru Matsuo·Thibaut Jonckheere·Jérôme Rech·Thierry Martin
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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.

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Kota Fukuzawa, Takeo Kato, Mamoru Matsuo, Thibaut Jonckheere, Jérôme Rech, Thierry Martin. 2023-03-02. Spin Pumping into Carbon Nanotubes. https://doi.org/10.1103/physrevb.108.134429

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