Results 71 to 80 of about 999 (173)

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

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

Superconductivity in a van der Waals layered quasicrystal

Nature 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, Kotaro Hamano, Sunao Nakagawa, Yasushi Kamimura, Shintaro Suzuki, Ryuji Tamura, Keiichi Edagawa   +6 more
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

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
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

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

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

Advanced 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, Tsunetomo Yamada, Koichi Kitahara, Alok Singh, Yutaka Iwasaki, Kaoru Kimura, Kanta Hiroki, Naoya Miyao, Asuka Ishikawa, Ryuji Tamura, Satoshi Ohhashi, Chang Liu, Ryo Yoshida   +12 more
doaj   +1 more source

Topologically Structured Light in Nanophotonics

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
Yijie Shen, Qiwen Zhan, Harald Giessen
wiley   +1 more source

Image Sampling with Quasicrystals

Symmetry, Integrability and Geometry: Methods and Applications, 2009
We investigate the use of quasicrystals in image sampling. Quasicrystals produce space-filling, non-periodic point sets that are uniformly discrete and relatively dense, thereby ensuring the sample sites are evenly spread out throughout the sampled image.
Mark Grundland, Jirí Patera, Zuzana Masáková, Neil A. Dodgson   +3 more
doaj   +1 more source