Nanoscale structuring of tungsten tip yields most coherent electron point-source
This report demonstrates the most spatially-coherent electron source ever reported. A coherence angle of 14.3 ± 0.5° was measured, indicating a virtual source size of 1.7 ± 0.6 Å using an extraction voltage of 89.5 V. The nanotips under study were crafted using a spatially-confined, field-assisted n...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
IOP Publishing
2013-01-01
|
Series: | New Journal of Physics |
Online Access: | https://doi.org/10.1088/1367-2630/15/7/073038 |