Abstract
Epitaxial thin films of layered perovskite (La, Sr)3Mn2O7 have been artificially grown by atomic-layer stacking of SrO and (La, Sr)MnO3 [artificial SrO/(La, Sr)MnO3 superlattice] using laser molecular-beam epitaxy on an SrTiO3(001) substrate at low processing temperature. Reflection high-energy electron diffraction patterns indicate the flat surface of the films and the layer-by-layer growth mode. X-ray diffraction patterns confirm that c-axis-oriented Ruddlesden–Popper layered (La, Sr)3Mn2O7 thin films can be grown at a substrate temperature as low as 580 °C. The resulting film exhibited ferromagnetism with a Curie temperature of 75 K.
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