|
|
A CaF2 atomic force microscope tip interacts with a CaF2 substrate in the presence of screening water molecules. Ca: turquoise; F: green or yellow; O: red; H: silver. [Matthew Watkins and Alexander L. Shluger, Phys. Rev. Lett. 105, 196101 (2010)] |
|
|
A CaF2 atomic force microscope tip interacts with a CaF2 substrate in the presence of screening water molecules. Ca: turquoise; F: green or yellow; O: red; H: silver. [Matthew Watkins and Alexander L. Shluger, Phys. Rev. Lett. 105, 196101 (2010)] |