Results 51 to 60 of about 3,440 (189)

Moving toward an atomistic reader model [PDF]

, 2005
With the move to recording densities up to and beyond 1 Tb/in/sup 2/, the size of read elements is continually reducing as a requirement of the scaling process.
Boerner, E.D., Chantrell, R.W., Chubykalo-Fesenko, O.A., Heinonen, O., Mryasov, O.N.   +4 more
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

Magnetism in reduced dimensions [PDF]

, 2005
We propose a short overview of a few selected issues of magnetism in reduced dimensions, which are the most relevant to set the background for more specialized contributions to the present Special Issue.
Aharoni, Aharoni, Aharoni, Aign, Albrecht, André Thiaville, Bansmann, Beleggia, Bochi, Bonet-Orozco, Braun, Braun, Brown, Bruno, Bruno, Bruno, Bryant, Bryant, Camarero, Chantrell, Chappert, Cherifi, Coffey, Cowburn, Cowburn, Cowburn, Cowburn, Cowburn, Cowburn, Dallmeyer, DeSimone, Dimian, Dittrich, Draaisma, Dürr, Ferré, Forster, Fruchart, Fruchart, Fruchart, Fruchart, Fruchart, Fruchart, Fruchart, Gambardella, Gambardella, Gambardella, Gambardella, Gambardella, García-Cervera, Goode, Gradmann, Gradmann, Gradmann, Grimsditch, Guirado-López, Guslienko, Guslienko, Gutjahr-Löser, Ha, Ha, Hartmann, Hehn, Henkel, Hertel, Hubert, Jamet, Jesser, Jubert, Jubert, Jungblut, Kirk, Kittel, Kläui, Kläui, Koide, Komelj, Kools, Kurkijärvi, Lederman, Lemerle, Lu, Martin, Martin, Mayergoyz, McMichael, Mikuszeit, Moritz, Moritz, Nakatani, Nakatani, Nielsch, Néel, Néel, Ohresser, Okuno, Olivier Fruchart, Pankhurst, Pietzsch, Piraux, Poulopoulos, Rahm, Rave, Rave, Ravindran, Rhodes, Rhodes, Rowlands, Rusponi, Saitoh, Sander, Sander, Sander, Schabes, Schneider, Schryer, Siegmann, Snoeck, Stoner, Stoner, Thamm, Thiaville, Thiaville, Thiaville, Thiaville, Thiaville, Thiaville, Thirion, Thomas, Thomas, Van den Berg, Van den Berg, Van den Berg, van der Laan, Vernier, Victora, Vogel, Vouille, Wachowiak, Weber, Wei, Weller, Wernsdorfer, Wernsdorfer, Yamaguchi, Yang, Zhang   +146 more
core   +4 more sources

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

Normal modes description of nonlinear ferromagnetic resonance for magnetic nanodots

AIP Advances, 2022
The spatially-inhomogeneous magnetization dynamics in a cylindrical magnetic nanodot driven by ac spin-torque is analyzed. To this end, the Landau-Lifshitz-Gilbert-Slonczewski equation is reformulated as a system of coupled nonlinear ordinary ...
S. Perna, F. Bruckner, C. Serpico, D. Suess, M. d’Aquino   +4 more
doaj   +1 more source

Local stability and a renormalized Newton Method for equilibrium liquid crystal director modeling [PDF]

, 2012
We consider the nonlinear systems of equations that result from discretizations of a prototype variational model for the equilibrium director field characterizing the orientational properties of a liquid crystal material.
Gartland, Jr, E.C., Ramage, Alison
core  

Spin Hall Nano‐Antenna

Advanced Science, EarlyView.
ABSTRACT The spin Hall effect is a well‐known phenomenon in spintronics that has found numerous applications in digital electronics (memory and logic), but relatively few in analog electronics. Practically the only analog application in widespread use is the spin Hall nano‐oscillator (SHNO) that delivers a high frequency alternating current or voltage ...
Raisa Fabiha, Pratap Kumar Pal, Michael Suche, Amrit Kumar Mondal, Erdem Topsakal, Anjan Barman, Supriyo Bandyopadhyay   +6 more
wiley   +1 more source

Domain structure of ultrathin ferromagnetic elements in the presence of Dzyaloshinskii-Moriya interaction [PDF]

, 2016
Recent advances in nanofabrication make it possible to produce multilayer nanostructures composed of ultrathin film materials with thickness down to a few monolayers of atoms and lateral extent of several tens of nanometers.
Muratov, Cyrill B., Slastikov, Valeriy V.   +1 more
core   +4 more sources

Micromagnetic tomography: Numerical libraries

Computers & Geosciences
Micromagnetic tomography (MMT) is an emerging technique in rock and paleomagnetism to determine individual magnetic moments of tomographically defined magnetic source regions within a natural sample by means of surface scans of the magnetic field above the sample.
David Cortés-Ortuño, Frenk Out, Martha E. Kosters, Karl Fabian, Lennart V. de Groot   +4 more
openaire   +2 more sources

Spintronic Bayesian Hardware Driven by Stochastic Magnetic Domain Wall Dynamics

Advanced Science, EarlyView.
Magnetic Probabilistic Computing (MPC) utilizes intrinsic stochastic dynamics in domain walls to establish a hardware foundation for uncertainty‐aware artificial intelligence. Thermally driven domain‐wall fluctuations, voltage‐controlled magnetic anisotropy, and TMR readout enable fully electrical, tunable probabilistic inference.
Tianyi Wang, Bingqian Dai, Shijie Xu, Kin Wong, Yaochen Li, Yang Cheng, Qingyuan Shu, Haoran He, Puyang Huang, Hanshen Huang, Xixiang Zhang, Kang L. Wang   +11 more
wiley   +1 more source