Fig. 1: Schematic of the sample and FESEM image along with the representative TRMOKE spectra.
From: Formation of binary magnon polaron in a two-dimensional artificial magneto-elastic crystal
a Schematic of the measurement geometry showing the sample and the launched SAW along with the pump and probe beams of the TR-MOKE measurement. b Scanning electron microscopy (SEM) image of the nanomagnet array. Background-subtracted experimental time-resolved c reflectivity (top panel) and Kerr rotation (bottom panel) oscillations in the absence of any SAW at a bias magnetic field Hext = 1.3 kOe along the major axes. d Fast Fourier transformed (FFT) power spectra of the reflectivity and Kerr oscillations.
