Results 71 to 80 of about 1,737,205 (192)

Size and profile of skyrmions in skyrmion crystals

Communications Physics, 2021
Understanding the parameters which govern the size of a skyrmion are important to gain greater control over their stability and dynamics but the underlying mechanisms differ from individual skyrmions to skyrmion crystals. To this end, using micromagnetic
Haitao Wu, Xuchong Hu, Keyu Jing, X. R. Wang   +3 more
doaj   +1 more source

Stabilization of Ultrafast Domain Wall Motion by Edge‐Anisotropy Engineering in Ferrimagnetic Nanowires

Advanced Electronic Materials, EarlyView.
Localized laser annealing transforms distorted, edge‐pinned domain‐wall motion in ferrimagnetic Pt/GdFe nanowires into straight, stable, and ultrafast propagation. Experiments and micromagnetic simulations reveal an optimum anisotropy‐engineering window in which moderate edge softening suppresses pinning, whereas excessive anisotropy reduction or ...
Mojtaba Mohammadi, Sina Ranjbar, Yoshinobu Nakatani, Benjamin Lilienthal‐Uhlig, Kenji Tanabe, Hiroyuki Awano   +5 more
wiley   +1 more source

Nonlinear Processes in Magnetic Nanodots under Perpendicular Pumping: Micromagnetic Simulations [PDF]

Журнал нано- та електронної фізики, 2013
Processes that take place in permalloy nanodots under external electromagnetic pumping are considered. It is shown that in such system similar to bulk samples Suhl and kinetic instability processes are possible.
D.V. Slobodiainuk, G.A. Melkov
doaj  

Selective Tuning of Perpendicular Magnetic Anisotropy and Dzyaloshinskii–Moriya Interaction in Heterostructures Compatible with Magnetic Tunnel Junctions

Advanced Electronic Materials, EarlyView.
ABSTRACT Chirally coupled magnetic tunnel junctions (MTJs) have been proposed as a route toward compact spin logic architectures. Micromagnetic simulations indeed show that chiral coupling between adjacent MTJs with perpendicular magnetic anisotropy (PMA) can be achieved through an in‐plane (IP) interconnection mediated by the Dzyaloshinskii–Moriya ...
Bob Vermeulen, Seongbin Seo, Domenico Giuliano, Jyotirmoy Chatterjee, Giacomo Talmelli, Robert Carpenter, Yann Canvel, Yanan Li, Björn Heinz, Philipp Pirro, Bart Sorée, Kristiaan Temst, Van Dai Nguyen, Gouri Sankar Kar, Siddharth Rao   +14 more
wiley   +1 more source

Micromagnetic simulation and optimization of spin-wave transducers

Scientific Reports
Abstract The increasing demand for higher data volume and faster transmission in modern wireless telecommunication systems has elevated requirements for 5G high-band RF hardware. Spin-Wave technology offers a promising solution, but its adoption is hindered by significant insertion loss stemming from the low efficiency of magnonic transducers.
Bruckner, Florian, Davídková, Kristýna, Abert, Claas, Chumak, Andrii, Suess, Dieter   +4 more
openaire   +6 more sources

Harnessing Digital Microstructure for Simulation‐Guided Optimization of Permanent Magnets

Advanced Intelligent Discovery, EarlyView.
An experimental‐to‐computational workflow is presented that transforms experimental 3D focused ion beam‐scanning electron microscopy data into a simulation‐ready digital microstructure for multiphase functional materials. Using heavy‐rare‐earth‐free Nd–Fe–B magnets as a model system, the approach quantifies grain connectivity across complex secondary ...
Nikita Kulesh, Anton Bolyachkin, Hajime Nakamura, Tadakatsu Ohkubo, Hossein Sepehri‐Amin   +4 more
wiley   +1 more source

Elongated skyrmion as spin torque nano-oscillator and magnonic waveguide

Communications Physics, 2022
Spin torque nano-oscillators facilitate the control of magnetization dynamics without the need for an external magnetic field and are compatible with CMOS technologies. Here, the authors propose, using micromagnetic simulations, a device comprising of an
Xue Liang, Laichuan Shen, Xiangjun Xing, Yan Zhou   +3 more
doaj   +1 more source

Fidimag – A Finite Difference Atomistic and Micromagnetic Simulation Package [PDF]

Journal of Open Research Software, 2018
Fidimag is an open-source scientific code for the study of magnetic materials at the nano- or micro-scale using either atomistic or finite difference micromagnetic simulations, which are based on solving the Landau-Lifshitz-Gilbert equation. In addition, it implements simple procedures for calculating energy barriers in the magnetisation through ...
Bisotti, Marc-Antonio, Cortés-Ortuño, David, Pepper, Ryan, Alexander, Wang, Weiwei, Beg, Marijan, Kluyver, Thomas, Fangohr, Hans   +6 more
openaire   +6 more sources

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

Advanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison, Kevin Nadaud, Josquin Harrison, Guillaume F. Nataf, Laura Bégon‐Lours   +4 more
wiley   +1 more source

High Frequency Electromagnetic Effects in Micromagnetic Simulations [PDF]

, 2017
This work is concerned with the important connection that exists between micromagnetism and high frequency electromagnetism. As micromagnetic solvers have become important tools in the study and engineering of magnetic devices, and as these devices are ...
Archambault-Couture, Simon
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