Fig. 2: The final magnetization states of Gd27Fe63.87Co9.13 under dual-shot excitation.
From: Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo

a, b Sketches of the final magnetization states of Gd27Fe63.87Co9.13 under dual-shot excitation when ∆t < ∆tc (a) and when ∆t ≥ ∆tc (b). c The final state distributions of Gd27Fe63.87Co9.13 under dual-shot excitation versus ∆t and the pulse fluence ratio (F2/F1) between the two pulses. The red frame indicates the onset of rewriting a magnetic bit by dual-shot excitation with minimal pulse-to-pulse separation. The scale bar is 40 μm. d The corresponding phase diagram