Ion-Implanted Diamond Tip for a Scanning Tunneling Microscope

Abstract
An ion-implanted diamond tip sharpened to a radius of about 100 nm has sufficient conductivity for scanning tunneling microscopy. This tip can be used repeatedly even if it contacts the sample surface. Because the radius of the tip can be easily checked and does not show much wear from repeated usage, the relation of the tip radius to image resolution can be estimated.

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