Strain release of (La,Ca)MnO3 thin films by YBa2Cu3O7-d

Details Strain release of (La,Ca)MnO3 thin films by YBa2Cu3O7-d Strain release of (La,Ca)MnO3 thin films by YBa2Cu3O7-d

2001-02-02

arxiv.org/abs/cond-mat/0102045v1

Physics

Condensed Matter

Materials Science

3 pages, 4 figures, submitted to Appl. Phys. Lett

Scientific paper

La1-xCaxMnO3 (x = 0.3; LCMO) films of different thickness were sputter-deposited on SrTiO3(100) (STO) single crystal substrates with and without YBa2Cu3O7-d (YBCO) as template layer. The electric and magnetic properties and the microstructure of the films were studied. Clear differences in the out-of-plane lattice parameter and the temperature of the metal-insulator transition show that the YBCO buffer layer is very effective in relaxing the strain of the LCMO films, which is quite difficult to release in LCMO films directly deposited on STO. Use of such buffer layers for strain release may prove to be a quite general tool.

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