Fig. 1: Experimental configuration.
a Optical image of the device, sketch of the stack and coordinate conventions. The sub-micron vertical gray segments near the left edge of the stripe are resist residues from the fabrication process. Red boxes: regions investigated by BLS microscopy. b Antenna efficiency function versus wavevector. c Direction of the applied field, sketch of the resulting scissors state, and micromagnetic configuration at μ0Hx = 50 mT. Notice the slight non-uniformity of the magnetizations near the edges of the SAF stripe. d Example of an experimental BLS microscopy image obtained for μ0Hx = 50 mT, and a r.f. field oscillating at 4.5 GHz. The image extends 0.8 μm on both sides of the stripe, whose width is 5 μm. The top and bottom BLS images have dimensions of 6.6 μm × 10.2 μm and 6.6 μm × 2.2 μm, respectively.
