Thermal Stability of Shape Transition in Strained Nano-Islands

ORAL

Abstract

Two dimensional Stranski-Krastanow strained islands are known to undergo a shape anisotropy transition as they grow in size, finally evolving toward nanowires. We investigate thermal stability of this process and find a phase transition both in temperature and, in simple cases, in growth. While our results are general, they can explain recent data on Erbium Silicide growth on vicinal Si surface.

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Authors

  • Cristiano Nisoli

    Los Alamos National Laboratory

  • Douglas Abrahams

    Oxford University

  • Turab Lookman

    Los Alamos National Laboratory

  • Avadh Saxena

    Los Alamos National Laboratory, Los Alamos National Lab