Journal
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 469, Issue 2153, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rspa.2012.0631
Keywords
nematic glass; aperture; opto-mechanical; nano sieve
Categories
Funding
- EPSRC [EP/E051251/1]
- Spanish MINECO project [MAT2011-27978-C02-02]
- CSIC [i-LINK0394]
- Gobierno de Aragon
- FEDER (EU)
- EPSRC [EP/F032773/1, EP/E051251/1, EP/J017639/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F032773/1, EP/J017639/1, EP/E051251/1] Funding Source: researchfish
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Recent attention has been given to the realization of angular deficits and surpluses in the local ground-state geometry of thin sheets of nematic solids as out-of-plane deformations. Such systems exhibit conical or anti-conical curvature sites, or possibly arrays of such polyhedral corners, in order to satisfy the material's spontaneous strain-generated metric requirements. Here, we turn the angular deficit requirement on its head, and show theoretically and experimentally that by appropriately altering the topology of the initially flat sheet-for example, by cutting it in carefully chosen regions-the same angular deficits and surpluses may manifest simply in-plane by changing the geometry of the cut region. Such amechanism offers a route to apertures or arrays of apertures that may be reversibly opened and closed by applying spontaneous strain with heat, light or chemical potential.
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