Inverse Spin Hall Effect in nanometer-thick YIG/Pt system
O. d'Allivy Kelly, A. Anane, R. Bernard, J. Ben Youssef, C. Hahn, A-H., Molpeceres, C. Carr\'et\'ero, E. Jacquet, C. Deranlot, P. Bortolotti, R., Lebourgois, J-C. Mage, G. de Loubens, O. Klein, V. Cros, A. Fert
TL;DR
This paper reports the successful detection of the inverse spin Hall effect in nanometer-thick YIG/Pt systems, demonstrating low damping and correlation between ISHE voltage and YIG thickness, with no observed loss compensation effects.
Contribution
It presents the first demonstration of ISHE detection in nanometer-thick YIG/Pt systems with ultra-low damping coefficients.
Findings
Low Gilbert damping coefficient of 2.3 x 10^-4 for 20 nm YIG films
Correlation between ISHE voltage and YIG thickness
No change in magnetization dynamics during loss-compensation experiments
Abstract
High quality nanometer-thick (20 nm, 7 nm and 4 nm) epitaxial YIG films have been grown on GGG substrates using pulsed laser deposition. The Gilbert damping coefficient for the 20 nm thick films is 2.3 x 10-4 which is the lowest value reported for sub-micrometric thick films. We demonstrate Inverse spin Hall effect (ISHE) detection of propagating spin waves using Pt. The amplitude and the lineshape of the ISHE voltage correlate well to the increase of the Gilbert damping when decreasing thickness of YIG. Spin Hall effect based loss-compensation experiments have been conducted but no change in the magnetization dynamics could be detected.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.