title: Note: electrochemical etching of sharp iridium tips.
abstract: We describe an etching procedure for the production of sharp iridium tips with apex radii of 15-70 nm, as determined by scanning electron microscopy, field ion microscopy, and field emission measurements. A coarse electrochemical etch followed by zone electropolishing is performed in a relatively harmless calcium chloride solution with high success rate.
authors: Department of Physics, Faculty of Science, McGill University, Montreal, Canada.
authors: Jean-Benoît
authors: JB
authors: Lalanne
authors: William
authors: W
authors: Paul
authors: David
authors: D
authors: Oliver
authors: Peter H
authors: PH
authors: Grütter