@article{10902/34776, year = {2011}, url = {https://hdl.handle.net/10902/34776}, abstract = {Partially segregated La0.7Sr0.3MnO3 (LSMO) nanocomposite films are shown to exhibit a thickness dependent self-assembled structure. The morphological evolution of the nanocomposite and the misfit strain of the LSMO phase are linked through the topological distribution of La-Sr oxide nanodots within the film. Misfit relaxation occurs above a critical thickness, hc, coinciding with the nucleation of La-Sr oxide nanodots at the film-substrate interface. Below hc, the same dots outcrop the film surface, forming islands. As a consequence of this misfit relaxation mechanism, an enhancement in the magnetoresistance with increasing thickness is measured.}, organization = {We acknowledge the financial support from MEC CONSOLIDER NANOSELECT, Grant No. MAT2008-01022; FPU, Generalitat de Catalunya Pla de Recerca, Grant No. 2009-SGR-770, and XaRMAE. The Cs-corrected Tecnai-F20 FEI electron microscope was used in the framework of the European project ESTEEM Contract No. 026019.}, publisher = {American Institute of Physics}, publisher = {Applied Physics Letters, 2011, 98(4), 041903}, title = {Misfit relaxation of La₀.₇Sr₀.₃MnO₃ thin films by a nanodot segregation mechanism}, author = {Abellán, Patricia and Moreno Sierra, César and Sandiumenge, F. and Obradors, X. and Casanove, M. J.}, }