Results 51 to 60 of about 1,910 (135)

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

Engineering planar transverse domain walls in biaxial magnetic nanostrips by tailoring transverse magnetic fields with uniform orientation

, 2018
Designing and realizing various magnetization textures in magnetic nanostructures are essential for developing novel magnetic nanodevices in modern information industry.
Li, Mei, Lu, Jie, Yu, Mingna
core   +1 more source

Magnetic Anisotropy Dominates over Physical and Magnetic Structure in Performance of Magnetic Nanoflowers

Small Structures, Volume 6, Issue 2, February 2025.
Idealized schematics showing example magnetic nanoflower colloidal structures, consistent with the small angle neutron scattering data. The chains increase the overall magnetic anisotropy which controls the MNFs’ effectiveness for magnetic particle imaging and magnetic nanofluid hyperthermia.
Julie Borchers, Kathryn Krycka, Brianna Bosch‐Santos, Eduardo de Lima Correa, Anirudh Sharma, Hayden Carlton, Yanliu Dang, Michael Donahue, Cordula Grüttner, Robert Ivkov, Cindi L. Dennis   +10 more
wiley   +1 more source

Origin of four-fold anisotropy in square lattices of circular ferromagnetic dots

, 2006
We discuss the four-fold anisotropy of in-plane ferromagnetic resonance (FMR) field $H_r$, found in a square lattice of circular Permalloy dots when the interdot distance $a$ gets comparable to the dot diameter $d$. The minimum $H_r$, along the lattice $$
G. N. Kakazei, K. Yu. Guslienko, M. D. Costa, P. C. Hammel, P. E. Wigen, S. Sun, T. Mewes, T. Okuno, V. Novosad, V. O. Golub, Yu. B. Grebenschikov, Yu. G. Pogorelov   +11 more
core   +1 more source

Time-resolved investigation of magnetization dynamics of arrays of non-ellipsoidal nanomagnets with a non-uniform ground state [PDF]

, 2007
We have performed time-resolved scanning Kerr microscopy (TRSKM) measurements upon arrays of square ferromagnetic nano-elements of different size and for a range of bias fields. The experimental results were compared to micromagnetic simulations of model
Childress, J. R., Galaktionov, E. A., Hicken, R. J., Katine, J. A., Keatley, P. S., Kruglyak, V. V., Neudert, A.   +6 more
core   +2 more sources

Multi‐Level Switching of Spin‐Torque Ferromagnetic Resonance in 2D Magnetite

Advanced Science, Volume 11, Issue 26, July 10, 2024.
The synthesis of environmentally stable and high Curie temperature 2D Fe3O4 nanosheets are reported that exhibit multi‐level resistance under the stimulation of a microwave field at room temperature. Such behavior is ascribed to the emergence of bAPBs and sAPBs in the Fe3O4 structure and morphological evolution of spin texture.
Zhiyan Jia, Qian Chen, Wenjie Wang, Rong Sun, Zichao Li, René Hübner, Shengqiang Zhou, Miming Cai, Weiming Lv, Zhipeng Yu, Fang Zhang, Mengfan Zhao, Sen Tian, Lixuan Liu, Zhongming Zeng, Yong Jiang, Zhongchang Wang   +16 more
wiley   +1 more source

Magnetization states and switching in narrow-gapped ferromagnetic nanorings

, 2012
We study permalloy nanorings that are lithographically fabricated with narrow gaps that break the rotational symmetry of the ring while retaining the vortex ground state, using both micromagnetic simulations and magnetic force microscopy (MFM).
Bartell, Jason, Crespi, Vincent H., Grigas, Chris, Li, Jie, Misra, Rajiv, Schiffer, Peter, Zhang, Sheng   +6 more
core   +2 more sources

Epitaxial Growth of Large‐Scale 2D CrTe2 Films on Amorphous Silicon Wafers With Low Thermal Budget

Advanced Materials, Volume 36, Issue 24, June 13, 2024.
A seeded growth technique is developed for crystallizing large‐scale 2D CrTe2 films on amorphous SiNx/Si substrates with a low thermal budget. Grain boundaries, intrinsic ferromagnetism, and magnetic–electrical behavior of 2D CrTe2 magnets are controlled through crystallinity engineering.
Xiaoqian Zhang, Yue Li, Qiangsheng Lu, Xueqiang Xiang, Xiaozhen Sun, Chunli Tang, Muntasir Mahdi, Clayton Conner, Jacob Cook, Yuzan Xiong, Jerad Inman, Wencan Jin, Chang Liu, PeiYu Cai, Elton J. G. Santos, Charudatta Phatak, Wei Zhang, Nan Gao, Wei Niu, Guang Bian, Peng Li, Dapeng Yu, Shibing Long   +22 more
wiley   +1 more source

Micromagnetic study of iron nanoparticles: Influence of size and shape

Results in Physics
We report computational micromagnetic simulations of iron nanoparticles with cubic and spherical geometries. The simulations were performed using the open source Ubermag package, which integrates the Object Oriented Micromagnetic Framework (OOMMF) as its
Mauricio Galvis, Vladimir Ballesteros, Fredy Mesa, Jorge Nisperuza, Johans Restrepo   +4 more
doaj   +1 more source

Finite size effects on spin-torque driven ferromagnetic resonance in spin-valves with a Co/Ni synthetic free layer

, 2008
Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study magnetic excitations in Co/Ni synthetic layers confined in nanojunctions. Field swept ST-FMR measurements were conducted with a magnetic field applied perpendicular to the layer surface.
Beaujour, J-M. L., Chen, W., de Loubens, G., Kent, A. D., Sun, J. Z.   +4 more
core   +1 more source