Results 31 to 40 of about 11,578,760 (275)
In this paper, a simple and powerful method to control the induced handedness of helical nanofilaments (HNFs) is presented. The nanofilaments are formed by achiral bent-core liquid crystal molecules employing a cholesteric liquid crystal field obtained ...
Ju-Yong Kim +4 more
doaj +1 more source
Amplitude expansion of the binary phase-field-crystal model [PDF]
11 pages, 8 ...
Elder, K. R. +2 more
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Consistent Hydrodynamics for Phase Field Crystals
We use the amplitude expansion in the phase field crystal framework to formulate an approach where the fields describing the microscopic structure of the material are coupled to a hydrodynamic velocity field. The model is shown to reduce to the well known macroscopic theories in appropriate limits, including compressible Navier-Stokes and wave ...
Heinonen, V. +6 more
openaire +8 more sources
An efficient algorithm for solving the phase field crystal model [PDF]
11 pages, 3 ...
Mowei Cheng, James A. Warren
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A phase-field-crystal model for liquid crystals [PDF]
Based on static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic, nematic, smectic A, columnar, plastic crystalline and orientationally ordered crystalline phases ...
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Noise-Induced Defects in Honeycomb Lattice Structure: A Phase-Field Crystal Study
One of the classes of the kinetic phase-field model in the form of the two-mode hyperbolic phase-field crystal model (modified PFC model) is used for the study of the noise effect of the crystalline structure.
Vladimir Ankudinov, Peter K. Galenko
doaj +1 more source
Surface states induced weak anti-localization effect in Bi0.85Sb0.15 topological single crystal
We report, an experimental evidence of surface states (SS) driven magneto-transport in a Bi _0.85 Sb _0.15 single crystal. Detailed high field (up to 12T) and low temperature (down to 2 K) magneto-transport measurements are been carried out on the ...
Yogesh Kumar, V P S Awana
doaj +1 more source
Interplay between polarization rotation and crack propagation in PMN-PT relaxor single crystals
Investigations on the interconnection between the polarization rotation and crack propagation are performed for [110]-oriented 74Pb(Mg1/3Nb2/3)O3-26PbTiO3 relaxor ferroelectric single crystal under electric loadings along [001] direction.
Fei Fang, Wenqi Jing, Wei Yang
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Thermodynamics of bcc metals in phase-field-crystal models [PDF]
We examine the influence of different forms of the free-energy functionals used in the phase-field-crystal (PFC) model, and compare them with the second-order density-functional theory (DFT) of freezing, by using bcc iron as an example case. We show that there are large differences between the PFC and the DFT and it is difficult to obtain reasonable ...
Jaatinen, Akusti +3 more
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Field dislocation mechanics and phase field crystal models [PDF]
A new formulation of the Phase Field Crystal model is presented that is consistent with the necessary microscopic independence between the phase field, reflecting the broken symmetry of the phase, and both mass density and elastic distortion. Although these quantities are related in equilibrium through a macroscopic equation of state, they are ...
Amit Acharya, Jorge Viñals
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