Fig. 2: Photoinduced time-resolved changes in reflectivity (ΔR/R) in α-Sr2CrO4.
From: Ultrafast signatures of spin and orbital order in antiferromagnetic α-Sr2CrO4

We measured ΔR/R at 1.55 eV after (a) 1.0 eV and (b) 3.1 eV photoexcitation at various temperatures.