Results 91 to 100 of about 21,421 (221)

On Elastic Stability and Positive Definiteness for One-Dimensional Quasicrystals

Crystals
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

High-temperature expansion for Ising models on quasiperiodic tilings

, 1999
We consider high-temperature expansions for the free energy of zero-field Ising models on planar quasiperiodic graphs. For the Penrose and the octagonal Ammann-Beenker tiling, we compute the expansion coefficients up to 18th order.
Grimm, Uwe, Repetowicz, Przemyslaw, Schreiber, Michael   +2 more
core   +1 more source

Clusters, phason elasticity, and entropic stabilisation: a theory perspective

, 2005
Personal comments are made about the title subjects, including: the relation of Friedel oscillations to Hume-Rothery stabilisation; how calculations may resolve the random-tiling versus ideal pictures of quasicrystals; and the role of entropies apart ...
Abe E, Al-Lehyani I, C. L. Henley, Cockayne E, Cockayne E, de Boissieu M, Francoual S, Frenkel DM, Gu Nan, Henley CL, Hocker S, Jeong H-C, Kalugin PA, Lei T, Levitov LS, Mihalkovič M, Mihalkovič M, Mihalkovič M, Reichert M, Socolar JES, Widom M   +20 more
core   +1 more source

Quo Vadis Quasicrystals?

Crystals, 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
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Quasicrystals and Other Aperiodic Structures in Mineralogy

Crystals, 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
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Homogeneous holographic viscoelastic models and quasicrystals

Physical 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
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Continuum elastic sphere vibrations as a model for low-lying optical modes in icosahedral quasicrystals

, 2005
The nearly dispersionless, so-called "optical" vibrational modes observed by inelastic neutron scattering from icosahedral Al-Pd-Mn and Zn-Mg-Y quasicrystals are found to correspond well to modes of a continuum elastic sphere that has the same diameter ...
A Mermet, Amazit Y, Boudard M, Boudard M, D B Murray, de Boissieu M, de Boissieu M, E Duval, Gavartin J L, Hafner J, Janot C, L Saviot, Lamb H, Mariotto G, Niizeki K, Shibata K   +15 more
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Laser induced desorption and ablation: mechanism of metal removal from an Al-Cu-Fe alloy and a quasicrystal of the same composition

International 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, Haichen Liu, Xianglei Mao, Giuliano Moretti, Richard E. Russo, Anna Giardini, Aldo Mele   +6 more
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Neutron scattering study on spin correlations and fluctuations in the transition-metal-based magnetic quasicrystal Zn-Fe-Sc

, 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, Chihiro Masuda, Isao Nakanowatari, Kazuki Iida, Rei Morinaga, S. W. Lovesey, Shiro Kashimoto, T. Ishimasa, T. J. Sato, Takahiro Onimaru, Taku J. Sato, Tsutomu Ishimasa   +11 more
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Methods forab initiostructure solution of decagonal quasicrystals [PDF]

, 1996
T. Haibach, W. Steurer
openalex   +1 more source