Abstract
There has been accumulating evidence (Mathur, Solid State Commun. 119 (2001) 271) that a charge ordered antiferromagnetic phase can coexist with a metallic ferromagnetic phase in the mixed valent manganites. We have used electron holography to show that micron sized fully ferromagnetic and non-ferromagnetic phases coexist at 90 K in La 0.5Ca 0.5MnO 3. Dark field imaging and selected area diffraction were used in combination to show that charge order occurs in both non-ferromagnetic and ferromagnetic regions.
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