Orientation dependence of the Schottky barrier height for La$_0.6$Sr$_0.4$MnO$_3$/SrTiO$_3$ heterojunctions

Details Orientation dependence of the Schottky barrier height for La$_0.6$Sr$_0.4$MnO$_3$/SrTiO$_3$ heterojunctions Orientation dependence of the Schottky barrier height for La$_0.6$Sr$_0.4$MnO$_3$/SrTiO$_3$ heterojunctions

2009-05-13

arxiv.org/abs/0905.2018v1

Physics

Condensed Matter

Materials Science

18 pages, 4 figures

Scientific paper

The authors report on the crystallographic orientation dependence of the Schottky properties for heterojunctions between a half-metallic ferromagnet La$_0.6$Sr$_0.4$MnO$_3$ (LSMO) and Nb-doped SrTiO3 semiconductor. The Schottky barrier height determined by in situ photoemission measurements is independent for the substrate orientations (001) and (110), while the magnetic properties of LSMO (110) films are more enhanced than for (001) films. These results suggest that the performance of magnetic devices based on ferromagnetic manganite is improved by using (110)-oriented substrates.

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