Figure 9.
Forces involved in the process of picking up a Ni cluster. The tip–sample distance at which the attractive force overcomes the adhesive one is estimated to be 0.3 nm.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.