Results 41 to 50 of about 27,519 (287)
Observation of a Time Quasicrystal and Its Transition to a Superfluid Time Crystal. [PDF]
Physical Review Letters, 2017 We report experimental realization of a quantum time quasicrystal and its transformation to a quantum time crystal. We study Bose-Einstein condensation of magnons, associated with coherent spin precession, created in a flexible trap in superfluid ^{3}He ...
S. Autti +4 more
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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
Fracture of complex metallic alloys: An atomistic study of model systems [PDF]
, 2006 Molecular dynamics simulations of crack propagation are performed for two extreme cases of complex metallic alloys (CMAs): In a model quasicrystal the structure is determined by clusters of atoms, whereas the model C15 Laves phase is a simple periodic ...
Abraham FF +16 more
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Precipitation of binary quasicrystals along dislocations
Nature Communications, 2018 Quasicrystal precipitation in alloys should be favored at dislocations, which break crystal symmetry, but almost all precipitates at dislocations are periodic.
Zhiqing Yang +5 more
doaj +1 more source
Topological Anderson insulator phase in a quasicrystal lattice [PDF]
Physical review B, 2019 Motivated by the recent experimental realization of the topological Anderson insulator and research interest on the topological quasicrystal lattices, we investigate the effects of disorder on topological properties of a two-dimensional Penrose-type ...
Rui Chen, Dong-Hui Xu, Bin Zhou
semanticscholar +1 more source
Hollow-core photonic quasicrystal fiber with high birefringence and ultra-low nonlinearity
, 2020 A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity.
Zhuang Huo, E. Liu, Jianjun Liu
semanticscholar +1 more source
Whirling spin order in the quasicrystal approximant Au72Al14Tb14 [PDF]
Physical review B, 2019 Neutron powder diffraction experiment has been performed on the quasicrystal approximant Au$_{72}$Al$_{14}$Tb$_{14}$, a body-center-cubic crystal of icosahedral spin clusters.
Taku J. Sato +5 more
semanticscholar +1 more source
Quasicrystals in a monodisperse system [PDF]
Physical Review E, 1999 We investigate the formation of a two-dimensional quasicrystal in a monodisperse system, using molecular dynamics simulations of hard sphere particles interacting via a two-dimensional square-well potential. We find that more than one stable crystalline phase can form for certain values of the square-well parameters.
Anna Skibinsky +5 more
openaire +4 more sources
Emission Characteristics of Lasing From all Organic Mirrorless Quasicrystal
IEEE Photonics Journal, 2016 We demonstrate the emission characteristics, including polarization property and temperature effect, of lasing from all organic mirrorless quasicrystal fabricated by seven-beam interference.
Zongdai Liu +4 more
doaj +1 more source
Wide Quantum Critical Region of Valence Fluctuations: Origin of Robust Quantum Criticality in Quasicrystal Yb15Al34Au51 under Pressure [PDF]
, 2014 The mechanism of the emergence of robust quantum criticality in the heavy-electron quasicrystal Yb15Al34Au51 is analyzed theoretically. By constructing a minimal model for the quasicrystal and its crystalline approximant, which contain concentric shell ...
Miyake, Kazumasa, Watanabe, Shinji
core +3 more sources