Atomically sculptured heart in oxide film using convergent electron beam

Abstract

Abstract We demonstrate a fabrication of an atomically controlled single-crystal heart-shaped nanostructure using a convergent electron beam in a scanning transmission electron microscope. The delicately controlled e-beam enable epitaxial crystallization of perovskite oxide LaAlO3 grown out of the relative conductive interface (i.e. 2 dimensional electron gas) between amorphous LaAlO3/crystalline SrTiO3.

Keywords

• Epitaxial crystallization
• Electron beam irradiation
• Spherical aberration corrected scanning transmission electron microscope
• Nanoarchitectonics