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Compositional uniformity, domain patterning and the mechanism underlying nano-chessboard arrays

Compositional uniformity, domain patterning and the mechanism underlying nano-chessboard arrays

Scientific Highlights Tuneable and low cost molecular electronics 21 January 2013 7459 hits jags

21012013

Santiago González, J M Perez-Mato, Luis Elcoro, Alberto García, Ray L Withers and Laure Bourgeois

J. Phys.: Condens. Matter 24 495301 (2012)


DOI: 10.1088/0953-8984/24/49/495301

 

We propose that systems exhibiting compositional patterning at the nanoscale can be understood in terms of the ordering of minority motifs, caused by some constrained drive for uniformity. The idea is discussed with a two-dimensional binary lattice-gas model in which the dilution of the minority component is favoured. We find a  hierarchy of arrangements similar to the experimentally observed nano-chessboard and nano-diamond patterns, which are described as occupational modulated structures with two independent modulation wavevectors.

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