The memory of surfaces: Epitaxial growth on quasi-crystals

McGrath, R., Sharma, H.R., Smerdon, Joe orcid iconORCID: 0000-0002-7387-8362 and Ledieu, J. (2012) The memory of surfaces: Epitaxial growth on quasi-crystals. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 370 (1969). pp. 2930-2948. ISSN 1364503X

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If crystal structures can be viewed as repositories of information, then crystal surfaces offer a pathway by which this information can be used to grow new structures through the process of epitaxy. The information transfer process is one of self-organization, and the kinetic and energetic factors influencing this are complex. They include the relative strengths of the adsorbate-adsorbate and adsorbate-substrate interactions, the flux of incoming species and the temperature of the system. In this brief review, we explore how the interplay of these factors influences the degree to which the epitaxial structures retain the 'memory' of the template, illustrating the discussion with examples from epitaxy on quasi-crystal surfaces.

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