Results 61 to 70 of about 12,987 (191)

New group of stable icosahedral quasicrystals: structural properties and formation conditions

open access: yes, 2003
Structural studies on the icosahedral quasicrystals in Zn-Mg-Sc, Cu-Ga-Mg-Sc, and Zn-Mg-Ti alloys as well as their corresponding 1/1 cubic approximants, have revealed that these quasicrystals belong to a new structural group similar to Cd-based ...
Andrusyak   +22 more
core   +1 more source

Computation and visualization of photonic quasicrystal spectra via Blochs theorem

open access: yes, 2008
Previous methods for determining photonic quasicrystal (PQC) spectra have relied on the use of large supercells to compute the eigenfrequencies and/or local density of states (LDOS).
Alejandro W. Rodriguez   +13 more
core   +1 more source

Quantum transport in quasicrystals and complex metallic alloys [PDF]

open access: yes, 2007
The semi-classical Bloch-Boltzmann theory is at the heart of our understanding of conduction in solids, ranging from metals to semi-conductors. Physical systems that are beyond the range of applicability of this theory are thus of fundamental interest ...
De Laissardière, Guy Trambly   +1 more
core   +3 more sources

Elucidating the Physical and Mathematical Properties of the Prouhet‐Thue‐Morse Sequence in Quantum Computing

open access: yesAnnalen der Physik, Volume 538, Issue 4, April 2026.
The Prouhet‐Thue‐Morse (PTM) sequence emerges as a unifying thread across quantum error correction, noise‐resistant memories, spin‐chain dynamics, quantum chaos, and Dirichlet links to the Riemann zeta function. Mapping PTM‐encoded logical states onto qubit and qudit architectures uncovers symmetry‐protected resilience and multifractal signatures ...
Denis Janković   +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

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

Elastic Green's Function of Icosahedral Quasicrystals

open access: yes, 1998
The elastic theory of quasicrystals considers, in addition to the normal displacement field, three phason degrees of freedom. We present an approximative solution for the elastic Green's function of icosahedral quasicrystals, assuming that the coupling ...
Bachteler, J., Trebin, H. -R.
core   +2 more sources

Mechanical Reinforcement of Polymer Nanocomposites with Different Network Structure of Polymer Grafted Nanoparticles

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.
Due to the different conformation structures of the grafting chains on the surface of silica, the nanoparticles contact each other by brush chains and bridge into a polymer‐mediated nanoparticle network in HDPE14K/HDPE1K‐g‐SiO2 PNCs, resulting in a more significant modulus reinforcement than that of PP370K/PP90K‐g‐SiO2 PNCs with a soft interfacial ...
Ye Yao   +4 more
wiley   +1 more source

Thick atomic layers of maximum density as bulk terminations of quasicrystals

open access: yes, 2004
The clean surfaces of quasicrystals, orthogonal to the directions of the main symmetry axes, have a terrace-like appearance. We extend the Bravais' rule for crystals to quasicrystals, allowing that instead of a single atomic plane a layer of atomic ...
Gerald Kasner   +4 more
core   +1 more source

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