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Magnetic domain walls in thin films can be well analyzed using polarized neutron reflectometry. Well defined streaks in the off-specular spin-flip scattering maps are explained by neutron refraction at perpendicular N\'{e}el walls. The…

Materials Science · Physics 2007-05-23 F. Radu , V. Leiner , K. Westerholt , H. Zabel , J. McCord , A. Vorobiev , J. Major , D. Jullien , H. Humblot , F. Tasset

We investigate the magnetic thermal noise in magnetic nanowires with and without a domain wall by employing micromagnetic simulations. The magnetic thermal noise due to random thermal fluctuation fields gives important physical quantities…

Materials Science · Physics 2015-05-19 Jungbum Yoon , Chun-Yeol You , Younghun Jo , Seung-Young Park , Myung-Hwa Jung

The electric (E) field control of magnetic properties opens the prospects of an alternative to magnetic field or electric current activation to control magnetization. Multilayers with perpendicular magnetic anisotropy (PMA) have proven to…

Ferroelectric domain walls are attracting broad attention as atomic-scale switches, diodes and mobile wires for next-generation nanoelectronics. Charged domain walls in improper ferroelectrics are particularly interesting as they offer…

We have observed the eigenmodes of coupled transverse domain walls in a pair of ferromagnetic nanowires. Although the pair is coupled magnetostatically, its spectrum is determined by a combination of pinning by edge roughness and dipolar…

Materials Science · Physics 2014-07-29 Andrew T. Galkiewicz , Liam O'Brien , Paul S. Keatley , Russell P. Cowburn , Paul A. Crowell

We present a calculation of the dephasing time of electrons in a ferromagnet relevant for the conductance fluctuations. We focus on the contribution from the interaction with spin waves. Explicit results are presented for a…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Jeroen Danon , Piet W. Brouwer

We study resistivity temperature dependence of a three dimensional metamagnet near the metamagnet phase transition point in the case when magnetic structure tends to split into regions with high and low magnetization. We show that in the…

Mesoscale and Nanoscale Physics · Physics 2013-01-31 Vladimir A. Zyuzin , A. Yu. Zyuzin

Using an S-matrix formulation we evaluate the thermodynamic potential and conductance of a Bloch or N\'eel magnetic wall interacting with a one dimensional free electron gas via a double exchange interaction. The minimization of the elastic…

Mesoscale and Nanoscale Physics · Physics 2025-05-13 K. Seremetas , X. Zotos

Domain wall propagation in cylindrical nanowires with modulations of diameter is a key phenomenon to design physics-oriented devices, or a disruptive three-dimensional magnetic memory. This chapter presents a combination of analytical…

Mesoscale and Nanoscale Physics · Physics 2022-06-16 A. De Riz , B. Trapp , J. A. Fernandez-Roldan , Ch. Thirion , J. -Ch. Toussaint , O. Fruchart , D. Gusakova

Ferroelectric nitrides have emerged as promising semiconductor materials for modern electronics. However, their domain structures and associated properties are basically unknown, despite their potential to result in optimized or new…

Materials Science · Physics 2024-08-06 Zhijun Jiang , Zhenlong Zhang , Charles Paillard , Hongjun Xiang , Laurent Bellaiche

The influence of the curvature on the dynamical properties of transversal domain walls in a thin antiferromagnetic wire is studied theoretically. Equations of motion for antiferromagnetic domain wall are obtained within the collective…

Strongly Correlated Electrons · Physics 2022-02-16 Kostiantyn V. Yershov

A self-contained theory of the domain wall dynamics in ferromagnets under finite electric current is presented. The current is shown to have two effects; one is momentum transfer, which is proportional to the charge current and wall…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Gen Tatara , Hiroshi Kohno

We have used the results of micromagnetic simulations to investigate the effects of nanowire geometry and domain wall magnetization structure on the characteristic parameters of magnetic atom traps formed by domain walls in planar…

Domain structure of a fluid ferroelectric nematic is dramatically different from the domain structure of solid ferroelectrics since it is not restricted by rectilinear crystallographic axes and planar surface facets. We demonstrate that…

The effect of domain walls on electron transport has been investigated in microfabricated Fe wires (0.65 to 20 $\mu m$ linewidths) with controlled stripe domains. Magnetoresistance (MR) measurements as a function of domain wall density,…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 U. Ruediger , J. Yu , S. Zhang , A. D. Kent , S. S. P. Parkin

We present an analysis of edge domain walls in exchange-biased ferromagnetic films appearing as a result of a competition between the stray field at the film edges and the exchange bias field in the bulk. We introduce an effective…

Analysis of PDEs · Mathematics 2018-10-05 Ross G. Lund , Cyrill B. Muratov , Valeriy V. Slastikov

While scandium-doped aluminum nitride (AlScN) exhibits robust ferroelectricity and excellent thermal stability, its utility is limited by an exceptionally high coercive field ($E_c$) for polarization switching. Unraveling the atomistic…

Materials Science · Physics 2026-05-21 Xiangyu Zheng , Charles Paillard , Dawei Wang , Peng Chen , Hong Jian Zhao , Yu Xie , Laurent Bellaiche

Domain walls are ubiquitous in materials that undergo phase transitions driven by spontaneous symmetry breaking. Domain walls in ferroics and multiferroics have received tremendous attention recently due to their emergent properties…

Wurtzite ferroelectrics possess transformative potential for next-generation microelectronics. A comprehensive understanding of their ferroelectric properties and domain energetics is crucial for tailoring their ferroelectric…

Ferroelectric domain walls are nanoscale objects that can be created, positioned, and erased on demand. They often embody functional properties that are distinct from the surrounding bulk material. Enhanced conductivity, for instance, is…

Materials Science · Physics 2024-10-29 Elzbieta Gradauskaite , Chia-Jung Yang , Shovon Pal , Manfred Fiebig , Morgan Trassin
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