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Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films
| Content Provider | Semantic Scholar |
|---|---|
| Author | Estradé, Sònia Rebled, José Manuel Arbiol, Jordi Peiró, Francesca Infante, Ingrid C. Herranz, Gervasi Sánchez, Filomeno Fontcuberta, J. Córdoba, Rosa Mendis, Budhika G. Bleloch, Andrew L. |
| Copyright Year | 2009 |
| Abstract | Electron-energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 (LCMO) films of various thicknesses grown on SrTiO3 (001) and (110) substrates. For relatively thick films (≥20 nm), epitaxial tensile strain in (001) films promotes a compositional La/Ca gradient across the film thickness, being the interface La rich, while the relaxed (110) films are chemically homogeneous. In contrast, much thinner (001) and (110) LCMO films display a different La/Ca distribution, being La rich at the free surface. The observed distinct thickness-dependent composition gradient behavior reflects a balance between strain-induced elastic energy minimization and kinetic effects during growth. |
| Starting Page | 072507 |
| Ending Page | 072507 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.3211130 |
| Alternate Webpage(s) | http://diposit.ub.edu/dspace/bitstream/2445/32768/1/571210.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.3211130 |
| Volume Number | 95 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
