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Electron-beam deposited Pt emitters were exposed to radical-oxygen gas to remove the surface amorphous carbon layers of the emitters, resulting in observation of fringelike-electron-emission patterns. The superposition of electron-wave interferences due to electrons emitted from a Pt emitter was further observed. These emission patterns were found to be well reproduced by the Fraunhofer diffraction model. These results suggested that the electron-wave interference might take place by electrons emitted from emission sites of Pt nanocrystals.
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures (Volume:27 , Issue: 2 )
Date of Publication: Mar 2009