Phase transition driven discontinuity in thermodynamic size selection

R. van Gastel, D. Kaminski, E. Vlieg, B. Poelsema

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
58 Downloads (Pure)


We show how an order-disorder phase transition in a two-dimensional system can discontinuously alter the shape and size of stress-stabilized self-assembled nanostructures. Low energy electron microscopy was used to study the dealloying of the Cu(111)-√3×√3-R30°-Bi surface alloy. The gradual expulsion of embedded bismuth from the alloy with increasing temperature induces a hard-hexagon-type order-disorder transition in the surface alloy. Our low energy electron microscopy results demonstrate how the loss of long-range order induces enormous changes in the domain patterns that the alloy forms with a Bi overlayer phase. We propose that the occurrence of phase transitions in one of the two surface phases that constitute a self-assembled domain pattern, provides a general, largely unexplored, mechanism that can be used to influence the morphological details of two-dimensional nanostructures
Original languageEnglish
Article number195501
Number of pages5
JournalPhysical review letters
Issue number19
Publication statusPublished - 2012


  • IR-84700
  • METIS-288997
  • Optics (see also 3311)Solid state physics (see also 2307)Niet in een andere rubriek onder te brengen


Dive into the research topics of 'Phase transition driven discontinuity in thermodynamic size selection'. Together they form a unique fingerprint.

Cite this