Ordered nano-lslands on (La,Ba)MnO3 thin film surface by self-organization.
Self-organized nanostructures composed of discrete coherent islands were found on La0.67Ba0.33 MnO3 (LBMO) film surfaces. Our results revealed that rippled surface structures on LBMO films appeared during post-annealing at high temperature, and that the step edges of the rippled surfaces offer energetically favorable positions for the nucleation of coherent islands. The rippled surface serves as a template for the arrangement of coherent islands. This provides a new way to prepare ordered surface nanostructures in perovskite oxides without the necessity to employ any preprocessing techniques prior to the growth.
Li
Run-Wei
RW
Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, Japan.
Kanki
Teruo
T
Tohyama
Hide-Aki
HA
Zhang
Jun
J
Tanaka
Hidekazu
H
Kawai
Tomoji
T
D017609:Barium Compounds / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D007811:Lanthanum / Q000737:chemistry*; D017895:Manganese Compounds / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010087:Oxides / Q000737:chemistry*; D013499:Surface Properties
D017609:Barium Compounds; D017895:Manganese Compounds; D008567:Membranes, Artificial; D010087:Oxides; C027424:manganese oxide; D007811:Lanthanum