Results 41 to 50 of about 17,081 (219)

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

Emission Characteristics of Lasing From all Organic Mirrorless Quasicrystal

open access: yesIEEE Photonics Journal, 2016
We demonstrate the emission characteristics, including polarization property and temperature effect, of lasing from all organic mirrorless quasicrystal fabricated by seven-beam interference.
Zongdai Liu   +4 more
doaj   +1 more source

Self-assembly of two-dimensional binary quasicrystals: A possible route to a DNA quasicrystal

open access: yes, 2016
We use Monte Carlo simulations and free-energy techniques to show that binary solutions of penta- and hexavalent two-dimensional patchy particles can form thermodynamically stable quasicrystals even at very narrow patch widths, provided their patch ...
Doye, Jonathan P. K.   +3 more
core   +1 more source

Forced vibration analysis of inhomogeneous quasicrystal coating in a thermal environment

open access: yesFrontiers in Materials, 2022
The tremendous attention of researchers has been attracted to the unusual properties of quasicrystals in coatings. In this paper, the exact solutions of the functionally graded multilayered two-dimensional quasicrystal coating structures in a thermal ...
Xin Feng   +5 more
doaj   +1 more source

Structure analysis of Zn-Mg-Ho icosahedral quasicrystal by modified Rietveld method using ellipsoid and sphere windows

open access: yes, 2003
A structure analysis of Zn-Mg-Ho icosahedral quasicrystal was carried out by the powder X-ray diffraction method using synchrotron radiation (Lambda=0.73490 A) at SPring-8.
Brown   +21 more
core   +1 more source

Methods for Calculating Empires in Quasicrystals

open access: yesCrystals, 2017
This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
doaj   +1 more source

Wide Quantum Critical Region of Valence Fluctuations: Origin of Robust Quantum Criticality in Quasicrystal Yb15Al34Au51 under Pressure [PDF]

open access: yes, 2014
The mechanism of the emergence of robust quantum criticality in the heavy-electron quasicrystal Yb15Al34Au51 is analyzed theoretically. By constructing a minimal model for the quasicrystal and its crystalline approximant, which contain concentric shell ...
Miyake, Kazumasa, Watanabe, Shinji
core   +3 more sources

Data‐Driven Design and Fabrication of Heat‐Resistant, Ultrastrong, Lightweight Aluminum‐Based Entropy Alloy by Additive Manufacturing

open access: yesAdvanced Science, EarlyView.
A data‐driven strategy integrating quantum machine learning (QML) and high‐throughput computing overcomes hot‐cracking limitation to design a novel lightweight aluminum‐based entropy alloy for additive manufacturing. The fabrication transforms brittle intermetallics into deformable hierarchical nanostructures, yielding ultrastrong strength (>1 GPa) and
Enmao Wang   +6 more
wiley   +1 more source

Ageing of Al-Mn-Cu-Be Alloys for Stimulating Precipitation of Icosahedral Quasicrystals

open access: yesMetals, 2020
In this work, the ageing of some Al-Mn-Cu-Be alloys was investigated in the temperature range in which predominantly icosahedral quasicrystalline (IQC) precipitates can form.
Tonica Bončina   +2 more
doaj   +1 more source

Neutron scattering study on spin correlations and fluctuations in the transition-metal-based magnetic quasicrystal Zn-Fe-Sc

open access: yes, 2007
Spin correlations and fluctuations in the 3d-transition-metal-based icosahedral quasicrystal Zn-Fe-Sc have been investigated by neutron scattering using polycrystalline samples.
A. Abragam   +11 more
core   +1 more source

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