Results 31 to 40 of about 2,337,909 (291)

Dzyaloshinskii-Moriya domain walls in magnetic nanotubes [PDF]

open access: yes, 2016
We present an analytic study of domain-wall statics and dynamics in ferromagnetic nanotubes with spin-orbit-induced Dzyaloshinskii-Moriya interaction (DMI).
Robbins, J. M.   +6 more
core   +1 more source

Dirac Operators and Domain Walls [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2020
We study the eigenvalue problem for a one-dimensional Dirac operator with a spatially varying ``mass'' term. It is well-known that when the mass function has the form of a kink, or \emph{domain wall}, transitioning between strictly positive and strictly negative asymptotic mass, $\pmκ_\infty$, at $\pm\infty$, the Dirac operator has a simple eigenvalue ...
Jianfeng Lu 0001   +2 more
openaire   +3 more sources

Index theorems and domain walls

open access: yesJournal of High Energy Physics, 2018
The Atiyah-Patodi-Singer (APS) index theorem relates the index of a Dirac operator to an integral of the Pontryagin density in the bulk (which is equal to global chiral anomaly) and an η invariant on the boundary (which defines the parity anomaly).
Dmitri Vassilevich
doaj   +1 more source

Controlled manipulation of conductive ferroelectric domain walls and nanoscale domains in BiFeO3 thin films

open access: yesJournal of Materiomics, 2022
Recently, there is a surge of research interest in configurable ferroelectric conductive domain walls which have been considered as possible fundamental building blocks for future electronic devices.
Dongfeng Zheng   +11 more
doaj   +1 more source

On Monopoles and Domain Walls [PDF]

open access: yesCommunications in Mathematical Physics, 2006
The purpose of this paper is to describe a relationship between maximally supersymmetric domain walls and magnetic monopoles. We show that the moduli space of domain walls in non-abelian gauge theories with N flavors is isomorphic to a complex, middle dimensional, submanifold of the moduli space of U(N) magnetic monopoles.
Hanany, Amihay, Tong, David
openaire   +3 more sources

Integrable domain walls in ABJM theory

open access: yesJournal of High Energy Physics, 2022
One-point functions of local operators are studied, at weak and strong coupling, for the ABJM theory in the presence of a 1/2 BPS domain wall. In the underlying quantum spin chain the domain wall is represented by a boundary state which we show is ...
Charlotte Kristjansen   +2 more
doaj   +1 more source

Field tuning of ferromagnetic domain walls on elastically coupled ferroelectric domain boundaries [PDF]

open access: yes, 2012
We report on the evolution of ferromagnetic domain walls during magnetization reversal in elastically coupled ferromagnetic-ferroelectric heterostructures.
Lahtinen, Tuomas H. E.   +5 more
core   +1 more source

CHARGED DOMAIN WALLS

open access: yesInternational Journal of Modern Physics D, 2004
In this paper we investigate Charged Domain Walls (CDW's), topological defects that acquire surface charge density Q induced by fermion states localized on the walls. The presence of an electric and magnetic field on the walls is also discussed. We find a relation in which the value of the surface charge density Q is connected with the existence of ...
L. CAMPANELLI   +3 more
openaire   +2 more sources

Detecting Dark Domain Walls [PDF]

open access: yes, 2023
Light scalar fields, with double well potentials and direct matter couplings, undergo density driven phase transitions, leading to the formation of domain walls. Such theories could explain dark energy, dark matter or source the nanoHz gravitational-wave
Hackermueller, Lucia   +4 more
core   +1 more source

Ferroelectric Domain Walls for Environmental Sensors. [PDF]

open access: yesACS Appl Mater Interfaces
Domain walls in ferroelectric oxides provide fertile ground for the development of next-generation nanotechnology. Examples include domain-wall-based memory, memristors, and diodes, where the unusual electronic properties and the quasi-2D nature of the ...
Richarz L   +11 more
europepmc   +3 more sources

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