bridging oxygen atom and non-bridging oxygen atom

(The symbol is abbreviated)-type three-level atom

∑(-) atom

∧ type three-level atom

∧-type three-level atom

3D atom probe

3-Dimensional Atom Probe

6Li atom

a moving two-level atom

a moving V-type three-level atom

a moving Ξ-type three-level atom

a three level cascade atom

a three-level atom

a V type three-level atom

absorbing atom

acceptor atom

activated atom

activated atom group

activator atom

active atom