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Abstract
A nano-belt structure is reported oriented along the ⟨110⟩ direction in perovskite–spinel (BaTiO3–CoFe2O4 or BTO–CFO) composite epitaxial thin films deposited on (001) SrTiO3 (STO) substrates by pulsed laser deposition. The effects of annealing, ramp rate and buffer layers on the nanostructure growth process were studied by atomic force microscopy and X-ray diffraction. The magnetization of BTO–CFO nano-belt thin films was also compared with that of BTO–CFO nano-pillar and CFO monolayer thin films.
Acknowledgements
We acknowledge financial support from the US Department of Energy under contract No. DE.-AC02-98CH10886, Office of the Air-Force Office of Scientific Research under FA 9550-06-1-0410, the Office of Naval Research under grant N00014-06-1-0204. FMB would like to acknowledge the NSFC grant # 50802011 for partial support of this work.