Results 21 to 30 of about 4,958 (198)
INTERACTIONS IN QUASICRYSTALS [PDF]
Although the effects of interactions in solid state systems still remains a widely open subject, some limiting cases such as the three dimensional Fermi liquid or the one-dimensional Luttinger liquid are by now well understood when one is dealing with interacting electrons in periodic crystalline structures.
Vidal, Julien +2 more
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Crack propagation in perfectly ordered and random tiling quasicrystals [PDF]
S.453-456Numerical experiments have been performed on the propagation of modeI cracks in both ordered and randomized two-dimensional decagonal mode quasicrystals.
Trebin, H.-R. +2 more
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On the Constitutive Modelling of Piezoelectric Quasicrystals
Quasicrystals endowed with piezoelectric properties belong nowadays to novel piezoelectric materials. In this work, the basic framework of generalized piezoelectricity theory of quasicrystals is investigated by providing an improvement of the existing ...
Eleni Agiasofitou, Markus Lazar
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Fascinating quasicrystals [PDF]
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.
Steurer W, Deloudi S
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Tetracoordinated quasicrystals [PDF]
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
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Topological critical states and anomalous electronic transmittance in one-dimensional quasicrystals
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
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2D honeycomb transformation into dodecagonal quasicrystals driven by electrostatic forces
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
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Formation of a single quasicrystal upon collision of multiple grains
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
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From crystalline to glassy: Crack propagation modes in decagonal quasicrystals [PDF]
S.323-328The propagation of mode-I cracks in a two-dimensional decagonal model quasicrystals is studied by molecular dynamics simulations. The samples are endowed with an atomically sharp seed crack and a temperature gradient.
Trebin, H.-R. +2 more
core
Structural Disorder in Quasicrystals [PDF]
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
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