Propagating topological transformations in thin immiscible bilayer films
KAUST Grant NumberKUK-C1-013-04
Permanent link to this recordhttp://hdl.handle.net/10754/671596
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AbstractA physical mechanism for the topological transformation of a two-layer system confined by two substrates is proposed. Initially the two horizontal layers, A and B, are on top of each other, but upon a sufficiently large disturbance, they can rearrange themselves through a spontaneously propagating sectioning to create a sequence of vertical alternating domains ABABAB. This generic topological transformation could be used to control the morphology of fabricated nanocomposites by first creating metastable layered structures and then triggering their transformation. The generality is underscored by formulating conditions for this topological transformation in terms of the interface energies between phases and substrates. The theoretical estimate for the width of the domains is confirmed by simulations of a phase-field model and its thin-film/sharp-interface approximation. © Copyright EPLA, 2014.
CitationHennessy, M. G., Burlakov, V. M., Münch, A., Wagner, B., & Goriely, A. (2014). Propagating topological transformations in thin immiscible bilayer films. EPL (Europhysics Letters), 105(6), 66001. doi:10.1209/0295-5075/105/66001
SponsorsThis publication is based in part upon work supported by The James Martin School (VMB, AG) and Award No. KUK-C1-013-04, made by KAUST. AG is a Wolfson/Royal Society Merit Award Holder and acknowledges support from a Reintegration Grant under EC Framework VII. BW gratefully acknowledges the support by the Federal Ministry of Education (BMBF) and the state government of Berlin (SENBWF) in the framework of the program “Spitzenforschung und Innovation in den NeuenL¨andern” (Grant No. 03IS2151) and the hospitality of OCCAM.