Hyperuniformity variation with quasicrystal local isomorphism class
Abstract
Hyperuniformity is the suppression of long-wavelength density fluctuations, relative to typical structurally disordered systems. In this paper, we examine how the degree of hyperuniformity [\overlineΛ≤ft(∞ \right) ] in quasicrystals depends on the local isomorphism class. By studying the continuum of pentagonal quasicrystal tilings obtained by direct projection from a five-dimensional hypercubic lattice, we find that \overlineΛ≤ft(∞ \right) is dominantly determined by the local distribution of vertex environments (e.g. as measured by Voronoi cells) but also exhibits a non-negligible dependence on the restorability. We show that the highest degree of hyperuniformity [smallest \overlineΛ≤ft(∞ \right) ] corresponds to the Penrose local isomorphism class. The difference in the degree of hyperuniformity is expected to affect physical characteristics, such as transport properties.
- Publication:
-
Journal of Physics Condensed Matter
- Pub Date:
- May 2017
- DOI:
- Bibcode:
- 2017JPCM...29t4003L