Symmetry and Asymmetry in Quasicrystals or Amorphous Materials
Barber, Enrique Maciá
Symmetry and Asymmetry in Quasicrystals or Amorphous Materials - Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2020 - 1 electronic resource (120 p.)
Open Access
About forty years after its discovery, it is still common to read in the literature that quasicrystals (QCs) occupy an intermediate position between amorphous materials and periodic crystals. However, QCs exhibit high-quality diffraction patterns containing a collection of discrete Bragg reflections at variance with amorphous phases. Accordingly, these materials must be properly regarded as long-range ordered materials with a symmetry incompatible with translation invariance. This misleading conceptual status can probably arise from the use of notions borrowed from the amorphous solids framework (such us tunneling states, weak interference effects, variable range hopping, or spin glass) in order to explain certain physical properties observed in QCs. On the other hand, the absence of a general, full-fledged theory of quasiperiodic systems certainly makes it difficult to clearly distinguish the features related to short-range order atomic arrangements from those stemming from long-range order correlations. The contributions collected in this book aim at gaining a deeper understanding on the relationship between the underlying structural order and the resulting physical properties in several illustrative aperiodic systems, including the border line between QCs and related complex metallic alloys, hierarchical superlattices, electrical transmission lines, nucleic acid sequences, photonic quasicrystals, and optical devices based on aperiodic order designs.
Creative Commons
English
books978-3-03943-057-4 9783039430567 9783039430574
10.3390/books978-3-03943-057-4 doi
Research & information: general
nucleic acids aperiodic quasiperiodic fractal order disorder energy structure charge transport Mg-Zn-Gd alloys symmetrical rod phase quasicrystal morphologies and properties quasiperiodic order self-similarity quasiperiodic photonic micro/nanostructures fractal-like photonic micro/nanostructures quasiperiodic or fractal-like plasmonic structures non-periodic systems localization properties electrical transmission lines quasiperiodicity localization tight-binding model Kubo formula low-dimensional systems n/a
Symmetry and Asymmetry in Quasicrystals or Amorphous Materials - Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2020 - 1 electronic resource (120 p.)
Open Access
About forty years after its discovery, it is still common to read in the literature that quasicrystals (QCs) occupy an intermediate position between amorphous materials and periodic crystals. However, QCs exhibit high-quality diffraction patterns containing a collection of discrete Bragg reflections at variance with amorphous phases. Accordingly, these materials must be properly regarded as long-range ordered materials with a symmetry incompatible with translation invariance. This misleading conceptual status can probably arise from the use of notions borrowed from the amorphous solids framework (such us tunneling states, weak interference effects, variable range hopping, or spin glass) in order to explain certain physical properties observed in QCs. On the other hand, the absence of a general, full-fledged theory of quasiperiodic systems certainly makes it difficult to clearly distinguish the features related to short-range order atomic arrangements from those stemming from long-range order correlations. The contributions collected in this book aim at gaining a deeper understanding on the relationship between the underlying structural order and the resulting physical properties in several illustrative aperiodic systems, including the border line between QCs and related complex metallic alloys, hierarchical superlattices, electrical transmission lines, nucleic acid sequences, photonic quasicrystals, and optical devices based on aperiodic order designs.
Creative Commons
English
books978-3-03943-057-4 9783039430567 9783039430574
10.3390/books978-3-03943-057-4 doi
Research & information: general
nucleic acids aperiodic quasiperiodic fractal order disorder energy structure charge transport Mg-Zn-Gd alloys symmetrical rod phase quasicrystal morphologies and properties quasiperiodic order self-similarity quasiperiodic photonic micro/nanostructures fractal-like photonic micro/nanostructures quasiperiodic or fractal-like plasmonic structures non-periodic systems localization properties electrical transmission lines quasiperiodicity localization tight-binding model Kubo formula low-dimensional systems n/a