Results 11 to 20 of about 4,957 (195)

Quasicrystals

open access: yesJournal of Research of the National Institute of Standards and Technology, 2001
The discretely diffracting aperiodic crystals termed quasicrystals, discovered at NBS in the early 1980s, have led to much interdisciplinary activity involving mainly materials science, physics, mathematics, and crystallography. It led to a new understanding of how atoms can arrange themselves, the role of periodicity in nature, and has created a new ...
Cahn, J.W.
core   +4 more sources

Defects in Static Elasticity of Quasicrystals

open access: yesCrystals, 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   +2 more sources

Extension of Elastic Models to Decagonal Quasicrystals

open access: yesCrystals, 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   +2 more sources

Hyperuniformity of quasicrystals [PDF]

open access: yesPhysical Review B, 2017
12 pages, 14 ...
Oğuz, Erdal C.   +3 more
openaire   +3 more sources

Forming quasicrystals by monodisperse soft core particles

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   +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

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

The Ammann-Kramer-Neri tiling model of a P-ZnMgEr Bergman-type quasicrystal based on in-house X-ray diffraction. [PDF]

open access: yesActa Crystallogr B Struct Sci Cryst Eng Mater
A structural solution is presented of a primitive icosahedral ZnMgEr quasicrystal representing the Bergman‐type family. The structure model is based on atomic decoration of the Ammann–Kramer–Neri tiling.This study presents the atomic structure solution of a primitive icosahedral Zn70.83Mg20.31Er8.86 quasicrystal using in‐house X‐ray diffraction and the
Buganski I   +7 more
europepmc   +2 more sources

Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems. [PDF]

open access: yesActa Crystallogr A Found Adv
The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Buganski I   +6 more
europepmc   +2 more sources

Exploring oxide quasicrystals in internal space. [PDF]

open access: yesActa Crystallogr A Found Adv
The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Schenk S   +3 more
europepmc   +2 more sources

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