Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1645393 | Materials Letters | 2013 | 4 Pages |
The effect of anisotropic strain induced by SrTiO3 (STO) substrate with different orientations on charge ordering (CO) behavior in epitaxial Sm0.5Ca0.5MnO3 (SCMO) films was investigated using cross-sectional transmission electron microscopy at 103 K. Incommensurate modulated structure caused by CO transition was observed in the SCMO film grown on a [101]-oriented STO substrate while none were found for SCMO film grown on a [100]-oriented STO substrate. This distinctive orientation-dependent CO transition is correlated with anisotropic strain in the films induced by lattice mismatch, confirming the previous results for growth on different substrates.
► Effect of substrate orientation on charge ordering behavior in epitaxial films. ► Correlation between the CO transition and strain state in manganite films. ► Incommensurate modulation observed in the SCMO/(101)STO films at 103 K.