Results 101 to 110 of about 12,987 (191)

Growing Perfect Decagonal Quasicrystals by Local Rules

, 2007
A local growth algorithm for a decagonal quasicrystal is presented. We show that a perfect Penrose tiling (PPT) layer can be grown on a decapod tiling layer by a three dimensional (3D) local rule growth. Once a PPT layer begins to form on the upper layer,
Hyeong-Chai Jeong, J. E. S. Socolar, M. Gardner, R. Penrose, R. Penrose, R. Penrose, T. Dotera, U. Grimm   +7 more
core   +1 more source

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
doaj   +1 more source

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
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

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
doaj   +1 more source

Generic mobility edges in a class of non-Hermitian quasicrystals

Results in Physics
We present approximate solutions for the mobility edge (ME) in a specific class of one-dimensional non-Hermitian (NH) quasicrystals delineating between localized and extended states.
Xiang-Ping Jiang, Mingdi Xu, Lei Pan
doaj   +1 more source

Spiky density of states in large complex Al-Mn phases

, 2008
First-principle electronic structure calculations have been performed in crystalline complex phases mu-Al4Mn and lambda-Al4Mn using the TB-LMTO method.
Dolinšek J., Fujiwara T., Krajèí M., Trambly de Laissardière G., Trambly de Laissardière G., Zijlstra E. S.   +5 more
core   +4 more sources

Magnetic quasicrystals: What can we expect to see in their neutron diffraction data?

, 1999
The theory of magnetic symmetry in quasicrystals is used to characterize the nature of magnetic peaks, expected in elastic neutron diffraction experiments.
Charier, Islam, Lifshitz, Lifshitz, Litvin, Litvin, Litvin, Ron Lifshitz, Sato   +8 more
core   +1 more source

Line Defects in Quasicrystals

Crystals
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   +1 more source

Mechanics of Interfacial Cracks between dissimilar Quasicrystals

, 2010
We analize the steady propagation of a straight interfacial crack between two dissimilar planar quasicrystals in pure elastic setting and infinitesimal deformation regime. A closed form solution to the balance equations is furnished.
Mariano, P.M., Planas Rosselló, Jaime, Radi, E., Stickle, M.M.   +3 more
core  

High-harmonic spectroscopy of mobility edges in one-dimensional quasicrystals

New Journal of Physics
Quasicrystals occupy a unique position between periodic and disordered systems, where localization phenomena such as Anderson transitions and mobility edges (MEs) can emerge even in the absence of disorder.
H K Avetissian, B R Avchyan, A Brown, G F Mkrtchian   +3 more
doaj   +1 more source