Results 21 to 30 of about 6,684 (202)

Line Defects in One-Dimensional Hexagonal Quasicrystals [PDF]

open access: yesMathematics
Using the eight-dimensional framework of the integral formalism of one-dimensional quasicrystals, the analytical expressions for the displacement fields and stress functions of line defects, which are dislocations and line forces, in one-dimensional ...
Markus Lazar
doaj   +3 more sources

Forming quasicrystals by monodisperse soft core particles [PDF]

open access: yesNature Communications, 2017
Quasicrystals with structural symmetries forbidden in crystals have been found in alloys or mono-component systems composed of anisotropic units. Zu et al.
Mengjie Zu, Peng Tan, Ning Xu
doaj   +3 more sources

Line Defects in Quasicrystals [PDF]

open access: yesCrystals
The six-dimensional framework of the integral formalism for line defects (straight dislocations and line forces) in anisotropic elasticity has been extended to a 2n-dimensional integral formalism for line defects in quasicrystals (n=4,5,6 for one-, two-,
Markus Lazar
doaj   +3 more sources

Comprehensive experimental datasets of quasicrystals and their approximants [PDF]

open access: yesScientific Data
Quasicrystals are solid-state materials that typically exhibit unique symmetries, such as icosahedral or decagonal diffraction symmetry. They were first discovered in 1984.
Erina Fujita   +8 more
doaj   +2 more sources

Line Defects in Two-Dimensional Dodecagonal Quasicrystals

open access: yesMathematics
In this work, line defects in two-dimensional dodecagonal quasicrystals are investigated. Using the ten-dimensional framework of the integral formalism of two-dimensional quasicrystals, the closed-form solutions for the displacement fields and stress ...
Markus Lazar
doaj   +2 more sources

Robust flat bands in twisted trilayer graphene moiré quasicrystals [PDF]

open access: yesNature Communications
Moiré structures formed by twisting three layers of graphene with two independent twist angles present an ideal platform for studying correlated quantum phenomena, as an infinite set of angle pairs is predicted to exhibit flat bands.
Chen-Yue Hao   +8 more
doaj   +2 more sources

Disclinations in quasicrystals [PDF]

open access: yesPhysical Review Letters, 1987
The most significant feature in the transition from the quasicrystalline to the amorphous state is the loss of long-range bond-orientational order. Disclinations are candidates for elementary excitations which destroy angular correlations. Generalizing the topological defect classification, we investigate point singularities in two-dimensional ...
Bohsung, Jörg, Trebin, Hans-Rainer
openaire   +4 more sources

Heptagonal quasicrystals: Construction of 2D lattices and demonstrations using laser pointers – Concluding part

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2023
Photographic slides of an aperiodic heptagonal tiling were used as two-dimensional diffraction gratings (as a standard approach) to describe and demonstrate the basic properties of dodecagonal quasicrystals.
Vladimir M. Petruševski   +1 more
doaj   +1 more source

INTERACTIONS IN QUASICRYSTALS [PDF]

open access: yesInternational Journal of Modern Physics B, 2000
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
openaire   +2 more sources

Fascinating quasicrystals [PDF]

open access: yesActa 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.
Steurer W, Deloudi S
openaire   +3 more sources

Home - About - Disclaimer - Privacy