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(Color online) (a) Field-cooled M(T) curves in different magnetic fields (H). (b) Coercive field (Hc ) as a function of temperature obtained from magnetic hysteresis loops.
(Color online) (a)-(c) MFM images acquired at different temperatures. Solid and dashed circles represent the same sample area. (d) Cross-correlation map between images shown in panels (a) and (c). The large negative value at the center of the map signifies the anticorrelation between images. (e), (f) Schematical illustration of the temperature evolution of phase-separated magnetic regions above and below Tcomp ≈ 12 K in 1 mT. The field of view in the images ((a)-(d)) is 6 μm × 6 μm. Features on the left side are broader than those on the right side because the scan plane is not perfectly parallel to the sample surface.
(Color online) (a)-(d) Field-cooled MFM images taken at 4 K in different magnetic fields. (e), (f) Cross-correlation maps between (a) and (b), and (b) and (c), respectively; no correlation is observed. The field of view in the images ((a)-(f)) is 6 μm × 6 μm. Dashed circles correspond to the same sample area.
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