Results 1 to 10 of about 6,684 (202)

Dodecagonal quasicrystals: Construction of 2D lattices and demonstrations using laser pointers

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2022
Photographic slides of an aperiodic dodecagonal tiling were used as two-dimensional diffraction gratings to describe and demonstrate the basic properties of dodecagonal quasicrystals. This paper complements our earlier publication on Penrose (decagonal)
Vladimir M. Petrushevski   +1 more
doaj  

Quasicrystals

open access: yes, 2019
This article is made available for reference. It was written following the March 2006 workshop "The World a Jigsaw: Tessellations in the Sciences" at the Lorentz Center, and due to be published in a book entitled "Tessellations in the Sciences: Virtues, Techniques and Applications of Geometric Tilings" (eds R van de Weijgaert, G Vegter, J Ritzerveld ...
Grimm, Uwe, Kramer, Peter
openaire   +2 more sources

On Elastic Stability and Positive Definiteness for One-Dimensional Quasicrystals

open access: yesCrystals
In this work, a proper formulation of the elastic stability and positive definiteness of the elastic energy density of one-dimensional quasicrystals is provided. Based on an appropriate Voigt notation, the Sylvester criterion is applied and the necessary
Eleni Agiasofitou, Markus Lazar
doaj   +1 more source

Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry

open access: yesJournal of Materials Research and Technology, 2019
The structural understanding of crystallization in bulk metallic glasses (BMGs) has attracted much attention while rapid crystallization occurring under controllable conditions is less involved.
Bingge Zhao   +6 more
doaj   +1 more source

Quo Vadis Quasicrystals?

open access: yesCrystals, 2017
This Special Issue aims at gaining a deeper understanding on the relationship between the underlying structural order and the resulting physical properties in aperiodic systems, including quasicrystalline and related complex metallic alloys, photonic ...
Enrique Maciá Barber
doaj   +1 more source

Superconductivity in a van der Waals layered quasicrystal

open access: yesNature Communications
Van der Waals layered transition-metal chalcogenides are drawing significant attention owing to their intriguing physical properties. This group of materials consists of abundant members with various elements, having a variety of different structures ...
Yuki Tokumoto   +6 more
doaj   +1 more source

Quasicrystals and Other Aperiodic Structures in Mineralogy

open access: yesCrystals, 2016
In this article, we first present and discuss eighteenth-century descriptions of minerals that contributed decisively to the development of crystallography.
Carlos M. Pina, Victoria López-Acevedo
doaj   +1 more source

Laser induced desorption and ablation: mechanism of metal removal from an Al-Cu-Fe alloy and a quasicrystal of the same composition

open access: yesInternational Journal of Photoenergy, 2001
Quasicrystals are a special class of metallic alloys that share some of the properties of crystals. Their structures reduce to a single repeating unit like that of the unit cell of a crystal.
Mauro Satta   +6 more
doaj   +1 more source

Homogeneous holographic viscoelastic models and quasicrystals

open access: yesPhysical Review Research, 2020
We show that the field theories dual to the homogeneous holographic models with spontaneously broken translations display several distinctive properties of quasicrystals, aperiodic crystals with long-range order (e.g., incommensurate charge density waves)
Matteo Baggioli
doaj   +1 more source

Deep Learning Enables Rapid Identification of a New Quasicrystal from Multiphase Powder Diffraction Patterns

open access: yesAdvanced Science
Since the discovery of the quasicrystal, approximately 100 stable quasicrystals are identified. To date, the existence of quasicrystals is verified using transmission electron microscopy; however, this technique requires significantly more elaboration ...
Hirotaka Uryu   +12 more
doaj   +1 more source

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