Results 51 to 60 of about 7,578 (209)

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Micromagnetic Simulation of Domain Walls in Exchange Spring Trilayers

Advances in Condensed Matter Physics, 2014
Chiral domain wall structures in ferromagnetic exchange spring soft/hard/soft and hard/soft/hard trilayers were investigated with micromagnetic simulation, which enables us to fully characterize the nucleation and growth of buried domain walls in layered
Zijun Wang, Xingqiao Ma, Houbing Huang, Hongwen Xiao, Tianfu Li   +4 more
doaj   +1 more source

Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures

Condensed Matter, 2020
Magnetic vortex structures are of high technological relevance due to their possible application in magnetic memory. Moreover, investigating magnetization reversal via vortex formation is an important topic in basic research. Typically, such vortices are
Devika Sudsom, Irén Juhász Junger, Christoph Döpke, Tomasz Blachowicz, Lothar Hahn, Andrea Ehrmann   +5 more
doaj   +1 more source

Nanostructured exchange coupled hard / soft composites: from the local magnetization profile to an extended 3D simple model

, 2011
In nanocomposite magnetic materials the exchange coupling between phases plays a central role in the determination of the extrinsic magnetic properties of the material: coercive field, remanence magnetization.
Aharoni, Asti, Asti, Casoli, Chen, Chen, Dobin, Dobin, Fullerton, Ghidini, Goncharov, Guslienko, Hadjipanayis, K. Younsi, Kneller, KronmÃller, L. Bessais, Leineweber, Pellicelli, Scholz, Skomski, Skomski, Skomski, Suess, Suess, Tsai, V. Russier, Victora, Younsi   +28 more
core   +2 more sources

Micromagnetic view on ultrafast magnon generation by femtosecond spin current pulses [PDF]

, 2018
In this Article we discuss a micromagnetic modelling approach to describe the ultrafast spin-transfer torque excitation of coherent and incoherent magnons on the nanoscale.
Razdolski, Ilya, Ulrichs, Henning
core   +3 more sources

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Stray Magnetic Field Variations and Micromagnetic Simulations: Models for Ni_0.8Fe_0.2 Disks Used for Microparticle Trapping

Micromachines
Patterned micro-scale thin-film magnetic structures, in conjunction with weak (~few tens of Oe) applied magnetic fields, can create energy landscapes capable of trapping and transporting fluid-borne magnetic microparticles.
Gregory B. Vieira, Eliza Howard, Prannoy Lankapalli, Iesha Phillips, Keith Hoffmeister, Jackson Holley   +5 more
doaj   +1 more source

Computing the demagnetizing tensor for finite difference micromagnetic simulations via numerical integration

, 2015
In the finite difference method which is commonly used in computational micromagnetics, the demagnetizing field is usually computed as a convolution of the magnetization vector field with the demagnetizing tensor that describes the magnetostatic field of
Chernyshenko, Dmitri, Fangohr, Hans
core   +1 more source

Electric‐Current‐Assisted Nucleation of Zero‐Field Hopfion Rings

Advanced Materials, EarlyView.
This work reports a novel and efficient nucleation protocol for 3D localized topological magnetic solitons‐hopfion rings in chiral magnets using pulsed electric currents. By using Lorentz transmission electron microscopy and topological analysis, we report characteristic features and extraordinary stability of hopfion rings in zero or inverted external
Xiaowen Chen, Dongsheng Song, Filipp N. Rybakov, Nikolai S. Kiselev, Long Li, Wen Shi, Rui Wu, Xuewen Fu, Olle Eriksson, Stefan Blügel, Rafal E. Dunin‐Borkowski, Haifeng Du, Fengshan Zheng   +12 more
wiley   +1 more source

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

Advanced 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, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source