domain wall


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domain wall

A two-dimensional defect in spacetime that, unlike cosmic strings, cannot survive the inflationary era. See inflationary Universe.

domain wall

[dō′mān ‚wȯl]
(solid-state physics)
References in periodicals archive ?
In the course of their research into the use of magnetic domain walls (local regions of magnetic "charge" usually driven by magnetic fields) to increase our capacity for information storage and logical processing, physicists at the University of Nottingham have discovered a phenomenon which has allowed them to 'manipulate' the structure of a magnetic domain wall.
For this reason, annealing process for the elimination of residual stresses is essential and two-step annealing contributes to the growth of the magnetic domain and domain wall motion and then reduces the magnetic losses and improves the permeability ofSMCs [11].
After an overview, they cover giant, tunnel, and ballistic magnetoresistance (GMR, TMR, BMR) and related phenomena; spin injection and voltage effects in magnetic nanopillars and its applications; dynamics of magnetic domain walks in nanomagnetic systems; theoretical aspects of current-driven magnetization dynamics; micromagnetics of domain wall dynamics in soft nanostrips; and III-V-based ferromagnetic semiconductors.
The boundary region between magnetic domains is called a domain wall.
If an external field is applied in the opposite direction, a magnetization reversal takes place with the displacement of a domain wall and the intermediate stage during the magnetization reversal should be as shown Fig.
1, 1, 0, 0), then (1) gives the expectation of a certain observable for the uniformly random configurations of the six-vertex model with domain wall boundary conditions, equivalently, Alternating Sign Matrices.
Among specific topics are domain wall engineering in lead-free piezoelectric materials, fabricating dielectric/conductive hybrid artificial superlattices using the molecular beam epitaxy method, zinc self-diffusion in isotopic heterostructures zinc oxide thin films, electrical properties of conductive paste with silver nanoparticles and its application to flexible substrates, piezoelectric ceramics for high-temperature applications, the mixed conduction of proton and electron in tungsten phosphate glass and its hydrogen transport, and thermophysical behavior in crystalline halides with temperature.
The magneto-optical techniques have the advantage of being able to follow a rapid magnetic domain wall motion.
In ferroelectrics, PFM allows direct imaging of ferroelectric domain structures with about 10 nm resolution as well as their evolution during phase transitions, ferroelectric fatigue, domain wall motion, and relaxation.
An example of the Casimir effect in curved spacetime has been considered for spherical geometries [11] in de Sitter space [12] and in the background of static domain wall [13].
A low-frequency noise component, indicative of non-ideal magnetization structure and domain wall motion, varied considerably from head to head.
Between the opposing patches lies a region called a domain wall, which Cowburn describes as resembling a stretchy, movable partition more than a fixed wall.

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