Results 31 to 40 of about 2,998,876 (168)

Effect of magnetostatic interactions on the hysteresis parameters of single-domain and psuedo-single domain grains [PDF]

, 2003
From experiments it is known that magnetostatic interactions between grains strongly affect the magnetic behavior of samples. However, because of the difficulty in predicting the nonlinear behavior, the effect of interactions has been largely ignored ...
Davinder Virdee, Adrian Muxworthy, Williams, W., Wyn Williams, Muxworthy, A.R., Muxworthy, A., Williams, W.; id_orcid, Virdee, D.   +7 more
core   +1 more source

Proposal for a micromagnetic standard problem for materials with Dzyaloshinskii–Moriya interaction

New Journal of Physics, 2018
Understanding the role of the Dzyaloshinskii–Moriya interaction (DMI) for the formation of helimagnetic order, as well as the emergence of skyrmions in magnetic systems that lack inversion symmetry, has found increasing interest due to the significant ...
David Cortés-Ortuño, Marijan Beg, Vanessa Nehruji, Leoni Breth, Ryan Pepper, Thomas Kluyver, Gary Downing, Thorsten Hesjedal, Peter Hatton, Tom Lancaster, Riccardo Hertel, Ondrej Hovorka, Hans Fangohr   +12 more
doaj   +1 more source

Ptychographic imaging and micromagnetic modeling of thermal melting of nanoscale magnetic domains in antidot lattices

AIP Advances, 2020
Antidot lattices are potential candidates to act as bit patterned media for data storage as they are able to trap nanoscale magnetic domains between two adjacent holes.
Joachim Gräfe, Maxim Skripnik, Georg Dieterle, Felix Haering, Markus Weigand, Iuliia Bykova, Nick Träger, Hermann Stoll, Tolek Tyliszczak, David Vine, Paul Ziemann, Ulf Wiedwald, David Shapiro, Ulrich Nowak, Gisela Schütz, Eberhard J. Goering   +15 more
doaj   +1 more source

Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas

Nanomaterials, 2021
Horizontally shifted and asymmetric hysteresis loops are often associated with exchange-biased samples, consisting of a ferromagnet exchange coupled with an antiferromagnet.
Joscha Detzmeier, Kevin Königer, Tomasz Blachowicz, Andrea Ehrmann   +3 more
doaj   +1 more source

Tomorrow’s micromagnetic simulations [PDF]

, 2019
Micromagnetic simulations are a valuable tool to increase our understanding of nanomagnetic systems and to guide experiments through parameter spaces that would otherwise be difficult and expensive to navigate.
Mulkers, Jeroen, Leliaert, Jonathan, J. Leliaert, J. Mulkers   +3 more
core   +1 more source

Skyrmion Formation in Nanodisks Using Magnetic Force Microscopy Tip

Nanomaterials, 2021
We demonstrated numerically the skyrmion formation in ultrathin nanodisks using a magnetic force microscopy tip. We found that the local magnetic field generated by the magnetic tip significantly affects the magnetization state of the nanodisks and leads
Mateusz Zelent, Iuliia V. Vetrova, Jan Šoltýs, Xiaoguang Li, Yan Zhou, Vladislav A. Gubanov, Alexandr V. Sadovnikov, Tomas Šcepka, Jan Dérer, Roman Stoklas, Vladimír Cambel, Michal Mruczkiewicz   +11 more
doaj   +1 more source

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

Advanced 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, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Vision for unified micromagnetic modeling (UMM) with Ubermag

AIP Advances
Scientists who want to use micromagnetic simulation packages, need to learn how to express the micromagnetic problem of interest in a “language” such as a configuration file, script or GUI-clicks that the simulation software understands.
Hans Fangohr, Martin Lang, Samuel J. R. Holt, Swapneel Amit Pathak, Kauser Zulfiqar, Marijan Beg   +5 more
doaj   +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

FinMag: finite-element micromagnetic simulation tool

, 2018
<p>First public release of FinMag: finite-element micromagnetic simulation tool.</p ...
Marijan Beg (5285053), Maximilian Albert (4975298), Mark Vousden (5285059), Hans Fangohr (5240782), Dmitri Chernyshenko (5301283), Weiwei Wang (105069), Ryan A. Pepper, Hagen Fuchs, Dmitri Chernyshenko, Anders Johansen (250544), David Cortés-Ortuño (5246120), Maximilian Albert, Marc-Antonio Bisotti (5285050), Gabriel Balaban, Leoni Breth, Weiwei Wang, Thomas Kluyver (7217090), Thomas Kluyver, Rebecca Carey, Hagen Fuchs (8140716), Anders Johansen, Hans Fangohr, Gabriel Balaban (6100232), Mark Vousden, Rebecca Carey (5285056), Leoni Breth (8140719), David Cortés-Ortuño, Marijan Beg, Ryan A. Pepper (7217081), Marc-Antonio Bisotti   +29 more
core   +1 more source