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Strain Induced Phase Separation in La0.67Ca0.33Mn03 Ultra Thin Films...

Publication Type
Journal
Journal Name
Journal of Physics and Chemistry of Solids
Publication Date
Page Numbers
472 to 475
Volume
67
Issue
1-3

Magnetic and transport properties are investigated in epitaxial La0.67Ca0.33MnO3 thin films grown on SrLaAlO4 under high in plane
compressive strain (K3.1%). Films with thickness in the range 2-6.5 nm show a two dimensional coherent growth mode and are significantly
strained as shown by the expansion of the out of plane lattice parameter. We provide evidence for phase separation induced by the inhomogeneous
strain field, free of artefacts related to composition changes at grain boundaries or structurally disordered regions characteristic of island growth.