Figure 4: Domain engineering through field-cycling.
From: Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu2Ga2B

(a–l) MFM images of field-cycling experiments at T = 8 K; the initial field-cooled state with Hz = 200 Oe is shown in (a). Red (green) arrows indicate increasing (decreasing) magnetic fields. The data resolution is 128 × 128 pixels.