Results 11 to 20 of about 20,648 (237)

Formation of a single quasicrystal upon collision of multiple grains [PDF]

Nature Communications, 2021
Quasicrystals exhibit long-range order without periodicity. The authors report an approach for quasicrystal fabrication and show through in situ imaging and corresponding simulations the formation of a single decagonal quasicrystal arising from ...
Insung Han, Kelly L. Wang, Andrew T. Cadotte, Zhucong Xi, Hadi Parsamehr, Xianghui Xiao, Sharon C. Glotzer, Ashwin J. Shahani   +7 more
doaj   +2 more sources

Superior Performance and Catalytic Mechanism of an Icosahedral Quasicrystal Al-Cu-Fe in CO₂ Reduction to CO. [PDF]

ChemSusChem
Icosahedral quasicrystal Al63Cu25Fe12 (iQC) is employed as a high‐performance catalyst for CO2‐to‐CO conversion. The iQC exhibits superior CO2 conversion compared with its crystalline counterparts. Density functional theory calculations reveal that abundant icosahedral clusters within iQC effectively lower the reaction barrier, elucidating the origin ...
Jin H, Zhang W, Yoshikawa H, Ishikawa A, Labib F, Zhang B, Zhou J, Kang R, Qin J, Zhang J, Xu Y, Tamura R.   +11 more
europepmc   +2 more sources

Topological decomposition and transformation of photonic quasicrystals. [PDF]

Nanophotonics
Abstract Photonic quasicrystals, generated through the interference of multiple vortex beams, exhibit rich and complex topological landscapes. However, unlike their periodic counterparts, they have far lacked the same level of controllability and reconfigurability.
Wang H, Teng H, Zhong J, Lei X, Zhan Q.
europepmc   +2 more sources

Electrical discharge triggers quasicrystal formation in an eolian dune. [PDF]

Proc Natl Acad Sci U S A, 2023
Significance The article presents the quasicrystal created by an electrical discharge, in this case accidentally created by a lightning strike or a downed power line in a wind-created dune in the Sand Hills of north central Nebraska.
Bindi L, Pasek MA, Ma C, Hu J, Cheng G, Yao N, Asimow PD, Steinhardt PJ.   +7 more
europepmc   +2 more sources

Photonic quasicrystal of spin angular momentum. [PDF]

Sci Adv
Quasicrystals, characterized by long-range order without translational symmetry, have catalyzed transformative advances in various fields, including optics in terms of field quasicrystals.
Lin M, Gou X, Xie Z, Yang A, Du L, Yuan X.   +5 more
europepmc   +3 more sources

Topological magnetic textures and long-range orders in terbium-based quasicrystal and approximant [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2021
Significance So far, the lack of microscopic theory for the crystalline electric field (CEF) in the rare earth–based quasicrystal has prevented us from understanding the magnetic property.
S. Watanabe
semanticscholar   +1 more source

Fascinating quasicrystals [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2007
It took Dan Shechtman more than two years to get his discovery of an Al–Mn phase with icosahedral diffraction symmetryandsharp Bragg reflections published. A paradigm shift had to take place before this novel ordering state of matter – seemingly contradicting crystallographic laws – could be accepted.
Walter, Steurer, Sofia, Deloudi
openaire   +2 more sources

Superconductivity in a van der Waals layered quasicrystal. [PDF]

Nat Commun, 2023
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 ...
Tokumoto Y, Hamano K, Nakagawa S, Kamimura Y, Suzuki S, Tamura R, Edagawa K.   +6 more
europepmc   +3 more sources

Dual gauge theory formulation of planar quasicrystal elasticity and fractons [PDF]

Physical review B, 2021
Elastic description of planar quasicrystals can be formulated as an interplay between two Goldstone fields corresponding to phonon and phason degrees of freedom.
Piotr Sur'owka
semanticscholar   +1 more source

Tetracoordinated quasicrystals [PDF]

Physical Review B, 1991
Current model networks for amorphous Ge contain five-membered rings and pentagonal dodecahedra to explain why in the radial distribution function the third peak of the diamond structure is missing. By presenting an algorithm based on a decoration of the three-dimensional Penrose quasilattice, we prove that this local pentagonal symmetry can be extended
Peters, Jochen, Trebin, Hans-Rainer
openaire   +4 more sources