Abstract
We report an enhanced magnetoelastic contribution to the Gilbert damping in highly magnetostrictive Fe0.7Ga0.3 thin films. This effect is mitigated for perpendicular-to-plane fields, leading to a large anisotropy of the Gilbert damping in all of the films (up to a factor of 10 at room temperature). These claims are supported by broadband measurements of the ferromagnetic resonance linewidths over a range of temperatures (5 to 400 K), which serve to elucidate the effect of both the magnetostriction and phonon relaxation on the magnetoelastic Gilbert damping.
Original language | English (US) |
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Article number | L220403 |
Journal | Physical Review B |
Volume | 103 |
Issue number | 22 |
DOIs | |
State | Published - Jun 1 2021 |
Bibliographical note
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