Results 31 to 40 of about 2,072 (165)

On a sharp Poincaré-type inequality on the 2-sphere and its application in micromagnetics

open access: yes, 2019
The main aim of this note is to prove a sharp Poincaré-type inequality for vector-valued functions on the 2-sphere, that naturally emerges in the context of micromagnetics of spherical thin ...
Zarnescu, Arghir   +2 more
core   +6 more sources

Manipulation of Time- and Frequency-Domain Dynamics by Magnon-Magnon Coupling in Synthetic Antiferromagnets

open access: yesMagnetochemistry, 2021
Magnons (the quanta of spin waves) could be used to encode information in beyond Moore computing applications. In this study, the magnon coupling between acoustic mode and optic mode in synthetic antiferromagnets (SAFs) is investigated by micromagnetic ...
Xing Chen   +4 more
doaj   +1 more source

Magnetic Guinier law

open access: yesIUCrJ, 2020
Small-angle scattering of X-rays and neutrons is a routine method for the determination of nanoparticle sizes. The so-called Guinier law represents the low-q approximation for the small-angle scattering curve from an assembly of particles.
Andreas Michels   +6 more
doaj   +1 more source

Unveiling the Emergent Traits of Chiral Spin Textures in Magnetic Multilayers

open access: yesAdvanced Science, 2022
Magnetic skyrmions are topologically wound nanoscale textures of spins whose ambient stability and electrical manipulation in multilayer films have led to an explosion of research activities. While past efforts focused predominantly on isolated skyrmions,
Xiaoye Chen   +9 more
doaj   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

open access: yesAdvanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford   +9 more
wiley   +1 more source

Identification and manipulation of spin wave polarizations in perpendicularly magnetized synthetic antiferromagnets

open access: yesNew Journal of Physics, 2021
Interlayer exchange-coupled synthetic antiferromagnets (SAFs) have the combined advantages of both high frequency of antiferromagnets and easy detection of ferromagnets.
Xing Chen   +5 more
doaj   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Modern phenomena in micromagnetics from a variational point of view [PDF]

open access: yes
This work focuses on the mathematical description of various phenomena arising in the mathematical modeling of micromagnetics. Two chapters of the thesis are related to high-contrast homogenization in micromagnetics and present a connection with the ...
Happ, Leon
core   +1 more source

Advanced Integration of ES-MADM II in HRM: A Balanced Approach to Appraisal and Promotion Decisions

open access: yesInformation
Personnel appraisal and promotion are fundamental processes in Human Resource Management (HRM), requiring advanced methodologies that adeptly combine objective data with subjective assessments.
Sideris Kiratsoudis, Vassilis Tsiantos
doaj   +1 more source

Manipulating and trapping skyrmions by magnetic field gradients

open access: yesNew Journal of Physics, 2017
The effective manipulation of skyrmion motion introduces the technologically relevant possibility of skyrmion-based spintronics. Here we show how a magnetic skyrmion can be captured by a radially spatial gradient of the magnetic field.
Chengjie Wang   +4 more
doaj   +1 more source

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