Surface phase metastability during Langmuir evaporation

Hannikainen, K., Gomez, D., Pereiro, J. ORCID: https://orcid.org/0000-0002-2582-3498, Niu, Y. R. ORCID: https://orcid.org/0000-0003-0491-892X and Jesson, D. E. ORCID: https://orcid.org/0000-0003-0897-1445 2019. Surface phase metastability during Langmuir evaporation. Physical Review Letters 123 , 186102. 10.1103/PhysRevLett.123.186102

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Abstract

We have directly imaged the spontaneous formation of metastable surface phase domains on GaAs(001) during Langmuir evaporation. Eventually, these metastable phases transform to the thermodynamically stable parent phase, producing a dynamic phase coexistence with a temperature dependent, time-averaged coverage. Monte Carlo simulations are used to identify the key kinetic processes and investigate the interplay between phase metastability and evolving surface morphology. This is used to explain the measured temperature dependence of the time-averaged coverage.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Physical Society
ISSN:	0031-9007
Funders:	Engineering and Physical Review Council, Engineering and Physical Review Council
Date of First Compliant Deposit:	27 September 2019
Date of Acceptance:	24 September 2019
Last Modified:	11 Oct 2023 19:13
URI:	https://orca.cardiff.ac.uk/id/eprint/125685

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