Phase Transitions of Condensates Investigated in an Atom by Atom Way
Abstract
Condensation processes and phase transitions are investigated in an atom-by-atom way in on-surface nanosized confinements. Structural transformations are induced thermally and by local probe excitation. The pores of a metal-organic network occupied with 1 up to 9 Xe atoms have been investigated in their propensity to undergo 'condensed solid' to 'confined fluid' transitions. Different transition temperatures are identified, which depend on the number of Xe atoms in the condensate and relate to the stability of the Xe clustering in the condensed 'phase'. This work is of fundamental interest and reveals the feature-rich behaviour of transitions of confined planar condensates which provide a showcase towards future 'phase-transition' storage media patterned by self-assembly.
Supported by the Swiss Nanoscience Institute, the Swiss National Science Foundation (Grants: 200020_162512, 206021_144991, 206021_121461), the Swiss Commission for Technology and Innovation (CTI, 16465.1 PFNM-NM) and the Swiss Commission for Swiss Government Excellence Scholarship Program for Foreign Scholars (2013.0492).- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..MARF45008A