Observation of NMR spin pumping

We report spin pumping from nuclear magnetic resonance (NMR), in which nuclear spin dynamics emits a spin current, a flow of spin angular momentum of electrons. By using the canted antiferromagnet MnCO₃, in which typical nuclear spin-wave formation is established due to the reinforced hyperfine coupling, we find that a spin current is generated from an NMR.

*This research was supported by JST ERATO ‘Spin Quantum Rectification Project’ (JPMJER1402), JSPS KAKENHI (no. 17H04806, no. JP18H04215, no. 18H04311, no. JP16J03699 and no. 17H02927) and MEXT (Innovative Area ‘Nano Spin Conversion Science’ (no. 26103005)).

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Bulletin of the American Physical Society

APS March Meeting 2019

Volume 64, Number 2

Monday–Friday, March 4–8, 2019; Boston, Massachusetts

Session K39: Spin Pumping

Abstract: K39.00011 : Observation of NMR spin pumping*

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