Results 71 to 80 of about 21,421 (221)

Designing a minimal Landau model to stabilize desired quasicrystals

Physical Review Research
Interparticle interactions with multiple length scales play a pivotal role in the formation and stability of quasicrystals. Choosing a minimal set of length scales to stabilize a given quasicrystal is a challenging problem.
Wei Si, Shifeng Li, Pingwen Zhang, An-Chang Shi, Kai Jiang   +4 more
doaj   +1 more source

Topological Polar Textures in van der Waals Moiré Superlattices

Small Structures, Volume 7, Issue 2, February 2026.
Moiré superlattices allow the realization of several novel properties, including the formation of complex topological polarization textures in ultrathin samples consisting of layered 2D materials. This review highlights the rapid progress in this emerging field, both through theory and experiment, discusses the field's potential implications, and draws
Joshua Edwards, Daniel Bennett, Michael S. Fuhrer, Mark T. Edmonds, Pankaj Sharma   +4 more
wiley   +1 more source

Time‐Domain Near‐Field Scanning Microscopy of Terahertz Metasurfaces

Advanced Photonics Research, Volume 7, Issue 1, January 2026.
Time‐domain near‐field scanning terahertz microscopy provides direct access to subwavelength electromagnetic fields on metasurfaces. By combining controlled polarization excitation with nanoscale probing, this technique enables quantitative visualization of localized hotspots, surface‐wave propagation, and wavefront manipulation, offering a powerful ...
Ruxue Wei, Soren Petersen, Weili Zhang
wiley   +1 more source

Metallic-mean quasicrystals as aperiodic approximants of periodic crystals

Nature Communications, 2019
Quasicrystals differ from traditional incommensurate structures because they have non-crystallographic rotational symmetries. Here the authors introduce a scheme to produce metallic-mean quasicrystals in two dimensions with 6-fold rotational symmetry ...
Joichiro Nakakura, Primož Ziherl, Junichi Matsuzawa, Tomonari Dotera   +3 more
doaj   +1 more source

Quantum Many-Body Topology of Quasicrystals

Physical Review X, 2021
In this paper, we characterize quasicrystalline interacting topological phases of matter, i.e., phases protected by some quasicrystalline structure. We show that the elasticity theory of quasicrystals, which accounts for both “phonon” and “phason” modes,
Dominic V. Else, Sheng-Jie Huang, Abhinav Prem, Andrey Gromov   +3 more
doaj   +1 more source

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

Identifying and Indexing Icosahedral Quasicrystals from Powder Diffraction Patterns

, 2001
We present a scheme to identify quasicrystals based on powder diffraction data and to provide a standardized indexing. We apply our scheme to a large catalog of powder diffraction patterns, including natural minerals, to look for new quasicrystals. Based
A. I. Goldman, A. P. Tsai, C. Janot, D. Levine, D. Levine, J. W. Cahn, Kenneth Deffeyes, Nan Yao, P. A. Bancel, Paul J. Steinhardt, Peter J. Lu, V. Elser   +11 more
core   +1 more source

Reconstructing Focal Topological Curves through Vortex Spots from Multifocal Metasurfaces

Advanced Science, Volume 12, Issue 48, December 29, 2025.
Multichannel multifocal silicon metasurfaces are built to reconstruct focal topological curves using an array of vortex spots, and upconverted fluorescence is used to directly visualize the morphology of the near‐infrared focal fields. Abstract Structured light plays an important role in modern photonics.
Hongguang Dong, Raheel Ahmed Janjua, Zhipeng Hu, Yi Jin, Sailing He   +4 more
wiley   +1 more source

Strongly localized modes in one-dimensional defect-free magnonic quasicrystals

AIP Advances, 2014
Signal storage in magnonic quasicrystals using a slow spin-wave mode, rather than the quasinormal mode of traditional periodic magnonic crystals, is proposed, which is analogous to the slow light mode in the field of optics.
C. H. Chen, R. Z. Qiu, C. H. Chang, W. J. Hsueh   +3 more
doaj   +1 more source

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