Anomalous temperature dependence of phonon pumping by ferromagnetic resonance in Co/Pd multilayers with perpendicular anisotropy

William K. Peria, De-Lin Zhang, Yihong Fan +2

We demonstrate the pumping of phonons by ferromagnetic resonance in a series of [Co(0.8 nm)/Pd(1.5 nm)]${}_n$ multilayers ($n=$ 6, 11, 15, and 20) with large magnetostriction and pe…