Results 31 to 40 of about 7,370 (261)
Kuwait Journal of Science, 2023 In this work, the harmonic and inharmonic domain wall (DW) oscillations by sinusoidal magnetic field in double triangular notched Permalloy nanowires were investigated by micromagnetic simulation.
Dede Djuhana +3 more
doaj +1 more source
Exchange coupled composite media for heat assisted magnetic recording
AIP Advances, 2017 Micromagnetic simulation is used to calculate the temperature derivative of the switching field dHsw/dT for a composite media with a superparamagnetic writing layer.
Zengyuan Liu, R. H. Victora
doaj +1 more source
Boundary twists, instabilities, and creation of skyrmions and antiskyrmions [PDF]
, 2018 We formulate and study the general boundary conditions dictating the magnetization profile in the vicinity of an interface between magnets with dissimilar properties.
Kovalev, Alexey A. +2 more
core +3 more sources
Magnetic non-contact friction from domain wall dynamics actuated by oscillatory mechanical motion [PDF]
, 2019 Magnetic friction is a form of non-contact friction arising from the dissipation of energy in a magnet due to spin reorientation in a magnetic field.
Laurson, Lasse, Rissanen, Ilari
core +2 more sources
High Ms Fe16N2 thin film with Ag under layer on GaAs substrate
AIP Advances, 2016 (001) textured Fe16N2 thin film with Ag under layer is successfully grown on GaAs substrate using a facing target sputtering (FTS) system. After post annealing, chemically ordered Fe16N2 phase is formed and detected by X-ray diffraction (XRD).
Xiaowei Zhang +4 more
doaj +1 more source
Dynamics of micromagnetic measurements [PDF]
Physical Review B, 1993 The response of a micromagnetic system to changes in ambient temperature or applied field is studied as a function of the overbarrier relaxation rate and of the intermediate nonequilibrium states through which the system is passing. We first derive an equation for the thermomagnetic curve and the corresponding time-dependent dc susceptibility.
Klik, Ivo +2 more
openaire +2 more sources
AIP Advances, 2017 The heating performance of magnetic nanoparticles (MNPs) under an alternating magnetic field (AMF) is dependent on several factors. Optimizing these factors improves the heating efficiency for cancer therapy and meanwhile lowers the MNP treatment dosage.
Kai Wu, Jian-Ping Wang
doaj +1 more source
Computational design of rare-earth reduced permanent magnets [PDF]
, 2020 Multiscale simulation is a key research tool in the quest for new permanent magnets. Starting with first principles methods, a sequence of simulation methods can be applied to calculate the maximum possible coercive field and expected energy density ...
Arapan, Sergiu +8 more
core +1 more source
Large-scale micromagnetics simulations with dipolar interaction using all-to-all communications
AIP Advances, 2016 We implement on our micromagnetics simulator low-complexity parallel fast-Fourier-transform algorithms, which reduces the frequency of all-to-all communications from six to two times.
Hiroshi Tsukahara +8 more
doaj +1 more source
A Comprehensive Study of Temperature and Its Effects in SOT-MRAM Devices
Micromachines, 2023 We employ a fully three-dimensional model coupling magnetization, charge, spin, and temperature dynamics to study temperature effects in spin-orbit torque (SOT) magnetoresistive random access memory (MRAM).
Tomáš Hadámek +5 more
doaj +1 more source