Wide-range strain tunability provided by epitaxial LaAl1-xScxO3 template films

Details Wide-range strain tunability provided by epitaxial LaAl1-xScxO3 template films Wide-range strain tunability provided by epitaxial LaAl1-xScxO3 template films

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12k3053h&link_type=abstract

New Journal of Physics, Volume 12, Issue 11, pp. 113053 (2010).

Physics

1

Scientific paper

The dielectric diamagnetic LaAl1- xScxO3 (LASO) (x=0-1) is proposed for adjusting of the biaxial in-plane lattice parameter of oxide substrates in the wide range from 3.79 to 4.05 Å (6.5%). This range includes the pseudocubic lattice parameters of most of the currently investigated complex oxides. The in-plane lattice parameter of strain-relaxed LASO films depends linearly on the composition, and these films grow with a smooth surface. On several different LASO-buffered substrates, ferromagnetic La0.7Sr0.3MnO3 (LSMO) films have been grown in predetermined strain states. A series of 30 nm thick LSMO films on LASO-buffered LaSrAlO4(001) demonstrates that continuously controlled coherent strains in a wide range, in this case from - 1 to +0.6%, can be obtained for the functional oxide films grown on LASO.

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