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Mostrando ítems 11-20 de 1212
Gradient theory of domain walls in thin, nematic liquid crystals films
(World Scientific Publishing, 2020)
In this paper, we describe domain walls appearing in a thin, nematic liquid crystal sample subject to an external field with intensity close to the Freedericksz transition threshold. Using the gradient theory of the phase ...
Current-driven domain wall motion in a planar nanowire with a square hole
(2019)
The current-driven domain wall motion in a planar nanowire with a square hole located at its center is studied by micromagnetic simulations. We show the existence of four regimes that depend both on the geometrical parameters ...
Statistically meaningful measure of domain-wall roughness in magnetic thin films
(American Physical Society, 2020-05)
Domain walls in magnetic thin films display a complex dynamical response when subject to an external drive. It is claimed that different dynamic regimes are correlated with the domain-wall roughness, i.e., with the ...
Static domain wall in braneworld gravity
(Springer, 2014-01-23)
In this paper we consider a static domain wall inside a 3-brane. Different from the standard achievement obtained in General Relativity, the analysis performed here gives a consistency condition for the existence of static ...
The targeting of starch binding domains from starch synthase III to the cell wall alters cell wall composition and properties
(Springer, 2016-10)
The plant cell wall, which represents a major source of biomass for biofuel production, is composed of cellulose, hemicelluloses, pectins and lignin. A potential biotechnological target for improving the production of ...
Influence of Domain Switching and Domain Wall Bending on the Electrical Permittivity of PZT Thin Films
(Taylor & Francis Ltd, 2011-01-01)
The electrical permittivity dependence on the electric bias field was investigated in Pb(Zr-0.53, Ti-0.47)O-3 films. the results revealed the existence of two mechanisms contributing to the permittivity. the first one was ...
Ultrafast domain wall propagation due to the interfacial Dzyaloshinskii-Moriya interaction
(IOP Publishing, 2020)
It is shown that the interplay between curvature and interfacial Dzyalonshinsky-Moriya interaction (DMI) is a pathway to ultrafast domain wall (DW) dynamics in ferromagnetic nanotubes. In this work, we theoretically study ...
Visualização, caracterização e manipulação de paredes de domínios em filmes finos ferroelétricos
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2017-08-10)
In this work, conductivity in ferroelectric domain walls, in materials whose domains are insulating, was investigated at the nanoscale using a combination of techniques based on atomic force microscopy. Polycrystalline and ...
Intermittent collective dynamics of domain walls in the creep regime
(American Physical Society, 2018-12)
We study the ultraslow domain-wall motion in ferromagnetic thin films driven by a weak magnetic field. Using time-resolved magneto-optical Kerr effect microscopy, we access to the statistics of the intermittent thermally ...