Results 11 to 20 of about 19,968 (193)
Tetracoordinated quasicrystals [PDF]
Physical Review B, 1991 Current model networks for amorphous Ge contain five-membered rings and pentagonal dodecahedra to explain why in the radial distribution function the third peak of the diamond structure is missing. By presenting an algorithm based on a decoration of the three-dimensional Penrose quasilattice, we prove that this local pentagonal symmetry can be extended
Peters, Jochen, Trebin, Hans-Rainer
openaire +4 more sources
Extension of Elastic Models to Decagonal Quasicrystals
Crystals, 2020 The main design of this paper is to adopt potential functions for solving plane defect problems originating from two-dimensional decagonal quasicrystals.
Wu Li, Yiqing Shi
doaj +1 more source
Hyperuniformity of quasicrystals [PDF]
Physical Review B, 2017 Hyperuniform systems, which include crystals, quasicrystals and special disordered systems, have attracted considerable recent attention, but rigorous analyses of the hyperuniformity of quasicrystals have been lacking because the support of the spectral intensity is dense and discontinuous.
Salvatore Torquato +3 more
openaire +3 more sources
2D honeycomb transformation into dodecagonal quasicrystals driven by electrostatic forces
Nature Communications, 2022 Quasicrystals are perfectly ordered crystals lacking translational symmetry. Here the authors unravel the formation mechanism of two-dimensional dodecagonal quasicrystals that arise from systematic modifications of a hexagonal honeycomb structure.
Sebastian Schenk +6 more
doaj +1 more source
Defects in Static Elasticity of Quasicrystals
Crystals, 2017 A review on mathematical elasticity of quasicrystals is given. In this review, the focus is on various defects of quasicrystals. Dislocation and crack are two classes of typical topological defects, while their existence has great influence on the ...
Qin Xu, Jing Lu, Wu Li
doaj +1 more source
Topological critical states and anomalous electronic transmittance in one-dimensional quasicrystals
Physical Review Research, 2021 Due to the absence of periodic length scale, electronic states and their topological properties in quasicrystals have been barely understood. Here, we focus on one-dimensional quasicrystals and reveal that their electronic critical states are ...
Junmo Jeon, SungBin Lee
doaj +1 more source
Formation of a single quasicrystal upon collision of multiple grains
Nature Communications, 2021 Quasicrystals exhibit long-range order without periodicity. The authors report an approach for quasicrystal fabrication and show through in situ imaging and corresponding simulations the formation of a single decagonal quasicrystal arising from ...
Insung Han +7 more
doaj +1 more source
Numerical Methods for Quasicrystals [PDF]
, 2013 Quasicrystals are one kind of space-filling structures. The traditional crystalline approximant method utilizes periodic structures to approximate quasicrystals.
Jiang, Kai, Zhang, Pingwen
core +1 more source
Structural Disorder in Quasicrystals [PDF]
Archives of Metallurgy and Materials, 2020 One of the challenges of modern crystallography of complex systems (complex metallic alloys, proteins, aperiodic crystals and quasicrystals) is to properly describe the disorder in these systems and discuss correctly the refinement results in terms of ...
R. Strzałka +3 more
doaj +1 more source
Fascinating quasicrystals [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2007 It took Dan Shechtman more than two years to get his discovery of an Al–Mn phase with icosahedral diffraction symmetryandsharp Bragg reflections published. A paradigm shift had to take place before this novel ordering state of matter – seemingly contradicting crystallographic laws – could be accepted.
Walter, Steurer, Sofia, Deloudi
openaire +2 more sources