Results 51 to 60 of about 21,137 (219)

Fermi surfaces and anomalous transport in quasicrystals

open access: yes, 1998
Fermi surfaces of several quasicrystalline approximants are calculated by means of ab-initio methods which enable direct comparison with dHvA experiments.
Fujiwara, T., Roche, S.
core   +1 more source

Twists and Turns of Liquid Crystals Unravelled by Small‐Angle Scattering

open access: yesSmall Methods, EarlyView.
X‐ray scattering provides valuable insights into material structure and self‐assembly. This review discusses the use of small‐ and wide‐angle X‐ray scattering (SWAXS) as well as grazing incident SWAXS for examining self‐assembled systems, especially liquid crystals.
Jessie Wong   +2 more
wiley   +1 more source

Landau levels in quasicrystals

open access: yes, 2018
Two-dimensional tight-binding models for quasicrystals made of plaquettes with commensurate areas are considered. Their energy spectrum is computed as a function of an applied perpendicular magnetic field.
Fuchs, Jean-Noël   +2 more
core   +1 more source

Formation of a stable deacagonal quasicrystalline Al-Pd-Mn surface layer [PDF]

open access: yes, 2001
We report the in situ formation of an ordered equilibrium decagonal Al-Pd-Mn quasicrystal overlayer on the 5-fold symmetric surface of an icosahedral Al-Pd-Mn monograin.
A. P. Tsai   +45 more
core   +4 more sources

Quasicrystals

open access: yes, 2019
This article is made available for reference. It was written following the March 2006 workshop "The World a Jigsaw: Tessellations in the Sciences" at the Lorentz Center, and due to be published in a book entitled "Tessellations in the Sciences: Virtues, Techniques and Applications of Geometric Tilings" (eds R van de Weijgaert, G Vegter, J Ritzerveld ...
Grimm, Uwe, Kramer, Peter
openaire   +2 more sources

Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems

open access: yesActa Crystallographica Section A, EarlyView.
The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Ireneusz Buganski   +6 more
wiley   +1 more source

Light wave propagation and diffraction inhibition in three-dimensional photonic quasicrystal lattices

open access: yesResults in Physics, 2023
We have investigated the linear propagation of light wave in three-dimensional photonic quasicrystal lattices by numerical simulation. The diffraction characteristics of the light waves in the longitudinal non-modulated, in-phase modulated and out-of ...
Meng Song   +3 more
doaj   +1 more source

Exploring oxide quasicrystals in internal space

open access: yesActa Crystallographica Section A, EarlyView.
The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Sebastian Schenk   +3 more
wiley   +1 more source

Line Defects in One-Dimensional Hexagonal Quasicrystals

open access: yesMathematics
Using the eight-dimensional framework of the integral formalism of one-dimensional quasicrystals, the analytical expressions for the displacement fields and stress functions of line defects, which are dislocations and line forces, in one-dimensional ...
Markus Lazar
doaj   +1 more source

Electronic instabilities in Penrose quasicrystals: Competition, coexistence, and collaboration of order

open access: yesPhysical Review Research, 2021
Quasicrystals lack translational symmetry, but can still exhibit long-range order, promoting them to candidates for unconventional physics beyond the paradigm of crystals.
J. B. Profe   +3 more
doaj   +1 more source

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