Results 31 to 40 of about 21,137 (219)

Stability of Two-Dimensional Soft Quasicrystals

open access: yes, 2015
The relative stability of two-dimensional soft quasicrystals is examined using a recently developed projection method which provides a unified numerical framework to compute the free energy of periodic crystal and quasicrystals. Accurate free energies of
Jiang, Kai   +3 more
core   +1 more source

Quantum transport in quasicrystals and complex metallic alloys [PDF]

open access: yes, 2007
The semi-classical Bloch-Boltzmann theory is at the heart of our understanding of conduction in solids, ranging from metals to semi-conductors. Physical systems that are beyond the range of applicability of this theory are thus of fundamental interest ...
De Laissardière, Guy Trambly   +1 more
core   +3 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   +1 more source

Quasicrystals

open access: yesJournal of Non-Crystalline Solids, 1985
We introduce the concept of quasicrystals and discuss their diffraction patterns. The idea of local isomorphism is argued to be a physically meaningful one.
Dov Levine, Paul J. Steinhardt
openaire   +2 more sources

Large spatial Goos-Hänchen shifts from quasicrystals with graphene

open access: yesResults in Physics, 2020
We investigate the spatial Goos-Hänchen (GH) shift of reflected beam from quasicrystals composed of Fibonacci dielectrics and graphene. The quasicrystals are composed of two symmetrical Fibonacci dielectrics and graphene is embedded in the center of the ...
Bin Xu   +6 more
doaj   +1 more source

Designing the Self-Assembly of Disordered Materials Via Color Frustration. [PDF]

open access: yesAdv Mater
What if disorder can be designed? This work introduces a strategy to self‐assemble amorphous materials by designing bonding rules for patchy particles that suppress crystallinity and promote frustration. The designer particles nucleate a network of dodecahedral cages from the liquid, yielding a novel equilibrium amorphous phase. This approach redefines
Neophytou A, Sciortino F, Russo J.
europepmc   +2 more sources

Precipitation of multi-type nano-quasicrystals in a Mg-Zn-Y alloy

open access: yesJournal of Magnesium and Alloys
Mg-6Zn-1Y (at.%) ribbons with strengthening precipitates of multi-type nanoquasicrystals were prepared by melt-spinning followed by aging treatments. Microstructural evolution of the rapidly solidified ribbons during isothermal aging was comprehensively ...
W.Z. Wang   +4 more
doaj   +1 more source

Proliferation of anomalous symmetries in colloidal monolayers subjected to quasiperiodic light fields

open access: yes, 2010
Quasicrystals provide a fascinating class of materials with intriguing properties. Despite a strong potential for numerous technical applications, the conditions under which quasicrystals form are still poorly understood.
Ashkin   +16 more
core   +2 more sources

Large-scale database analysis of anomalous thermal conductivity of quasicrystals and its application to thermal diodes

open access: yesScience and Technology of Advanced Materials: Methods
One long-standing and crucial issue in the study of quasicrystals has been to identify the physical properties characteristic of quasicrystals. The large positive temperature coefficient of thermal conductivity at temperatures above room temperature ...
Takashi Kurono   +3 more
doaj   +1 more source

Quasicrystals – A Paradigm Shift in Crystallography?

open access: yesCHIMIA, 2014
The discovery of quasicrystals had important consequences for our understanding of long-range order in thermodynamic equilibrium, the definition of the term 'crystal' as well as diffraction theory.
Walter Steurer
doaj   +1 more source

Home - About - Disclaimer - Privacy