Results 41 to 50 of about 11,578,760 (275)

Plasticity and Dislocation Dynamics in a Phase Field Crystal Model [PDF]

Physical Review Letters, 2010
The critical dynamics of dislocation avalanches in plastic flow is examined using a phase field crystal (PFC) model. In the model, dislocations are naturally created, without any \textit{ad hoc} creation rules, by applying a shearing force to the perfectly periodic ground state.
Chan, Pak Yuen, Tsekenis, Georgios, Dantzig, Jonathan, Dahmen, Karin A., Goldenfeld, Nigel   +4 more
openaire   +3 more sources

Classical nucleation theory in the phase-field crystal model [PDF]

Physical Review E, 2018
A full understanding of polycrystalline materials requires studying the process of nucleation, a thermally activated phase transition that typically occurs at atomistic scales. The numerical modeling of this process is problematic for traditional numerical techniques: commonly used phase-field methods' resolution does not extend to the atomic scales at
Jreidini, Paul, Kocher, Gabriel, Provatas, Nikolas   +2 more
openaire   +3 more sources

Evaluation of the elastic field in phase‐field crystal simulations

PAMM, 2023
AbstractThe phase‐field crystal model (PFC) describes crystal structures at diffusive timescales through a periodic order parameter representing the atomic density. One of its main features is that it naturally incorporates elastic and plastic deformation.
Maik Punke, Vidar Skogvoll, Marco Salvalaglio   +2 more
openaire   +2 more sources

Mechanical relaxation and fracture of phase field crystals

Physical Review E, 2019
14 pages, 10 ...
Zhou, Wenquan, Wang, Jincheng, Wang, Zhijun, Huang, Zhi-Feng   +3 more
openaire   +4 more sources

Phase Transition Field Effect Transistor Observed in an α-(BEDT-TTF)₂I₃ Single Crystal

Solids, 2023
The metal–insulator transition induced by the gate electric field in the charge order phase of the α-(BEDT-TTF)2I3 single-crystal field-effect transistor (FET) structure was clearly observed near the phase transition temperature.
Ryosuke Ando, Ryo Watanuki, Kazuhiro Kudo, Hyuma Masu, Masatoshi Sakai   +4 more
doaj   +1 more source

Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]

, 2012
In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
core   +4 more sources

Response Analysis of Electro-Optic Electric Field Sensor

Tikrit Journal of Engineering Sciences, 2009
In this paper an electric field sensor based on the electro-optical effect in Lithium Niobate crystal is studied. The electro-optically induced polarization modification in crystal has been described and the response analyzed for different crystal ...
Dawood N. Saleh
doaj   +1 more source

Controlling crystal symmetries in phase-field crystal models [PDF]

Journal of Physics: Condensed Matter, 2010
19 pages, 6 ...
Wu, Kuo-An, Plapp, Mathis, Voorhees, Peter W   +2 more
openaire   +3 more sources

The elastic inclusion problem in the (amplitude) phase field crystal model

Examples and Counterexamples, 2022
In many processes for crystalline materials such as precipitation, heteroepitaxy, alloying, and phase transformation, lattice expansion or compression of embedded domains occurs.
Marco Salvalaglio, Karthikeyan Chockalingam, Axel Voigt, Willy Dörfler   +3 more
doaj   +1 more source

Effect of In-Plane Magnetic Field on Skyrmions in a Centrosymmetric Triangular-Lattice System with Symmetric Anisotropic Exchange Interaction

Magnetism
We report our numerical results on the stability of the skyrmion crystal phase in an external magnetic field for both in-plane and out-of-plane directions in a centrosymmetric host. We analyze a spin model with the two-spin symmetric anisotropic exchange
Satoru Hayami
doaj   +1 more source