Results 51 to 60 of about 1,737,205 (192)

Configurational anisotropy in single-domain and pseudosingle-domain grains of magnetite [PDF]

, 2006
In classical domain theory, single-domain (SD) grains change their magnetization by coherent rotation, where the energy barrier to domain reversal is provided by the magnetocrystalline anisotropy or by shape anisotropy for elongated grains.
Williams, W., Paterson, G.A., Muxworthy, A., Paterson, Greig A., Williams, Wyn; id_orcid, Muxworthy, Adrian R., Muxworthy, Adrian R, Paterson, Greig A, Williams, Wyn   +8 more
core   +1 more source

Ultrafast dynamics of a magnetic antivortex: Micromagnetic simulations [PDF]

Physical Review B, 2008
The antivortex is a fundamental magnetization structure which is the topological counterpart of the well-known magnetic vortex. We study here the ultrafast dynamic behavior of an isolated antivortex in a patterned Permalloy thin-film element. Using micromagnetic simulations we predict that the antivortex response to an ultrashort external field pulse ...
Gliga, S., Yan, M., Hertel, R., Schneider, C. M.   +3 more
openaire   +3 more sources

Generation of Probabilistic Bits by Exploiting Orthogonal Spin Currents in Magnetic Trilayers

Advanced Science, EarlyView.
Fe/Ti/CoFeB trilayers generate orthogonal spin currents that drive stochastic spin–orbit‐torque switching for probabilistic‐bit operation. The switching probability is continuously controlled by the in‐plane magnetic field and drive current, enabling tunable random bit generation.
Donghyeon Han, Chaehyeon Shin, Seok‐Jong Kim, Yunho Jang, Daekyu Koh, Taehwan Kim, Jaeheon Jung, Geon‐Woo Baek, Minseok Kang, Eunseok Kim, Geun‐Hee Lee, Jeongchun Ryu, Makoto Kohda, Junsaku Nitta, Kab‐Jin Kim, Jongsun Park, Kyung‐Jin Lee, Byong‐Guk Park   +17 more
wiley   +1 more source

TetraX: Finite-Element Micromagnetic-Modeling Package

, 2022
This repository holds the first release of TetraX. Documentation: www.tetrax.software Helpdesk: discussions.tetrax.software/ Source code: codebase.helmholtz.cloud/micromagnetic-modeling/tetrax TetraX is a package for finite-element-method (FEM ...
Zahn, Friedrich, Quasebarth, Gwendolyn, Hertel, Riccardo, Hempel, Alexander, Otto, Andreas, Westphal, Elmar, Kakay, Attila, Körber, Lukas   +7 more
core   +1 more source

Broadening Hard‐Magnet Discovery Beyond Symmetry Constraints via Unified Effective Anisotropy

Advanced Science, EarlyView.
A unified effective‐anisotropy descriptor (Keff) extends hard‐magnet screening across all seven crystal systems, beyond the uniaxial restriction of conventional searches. Machine‐learning screening of 9320 known ferromagnets and diffusion‐model generation together yield 38 rare‐earth‐free or ‐lean candidates with DFT‐validated magnetic hardness (κ > 1),
Hojae Kim, Hyeondeok Shin, Kyungju Nam, Seunghyo Noh, Donghwi Kim, Yousung Jung   +5 more
wiley   +1 more source

Skyrmion motion and partitioning of domain wall velocity driven by repulsive interactions

Communications Physics, 2022
Skyrmions are swirling magnetic textures useful for low power-consumption computer memories, but better means, preferably magnetic, are required to control their motion.
Xiangjun Xing, Yan Zhou
doaj   +1 more source

Experimental and Modelling Analysis of the Hyperthermia Properties of Iron Oxide Nanocubes

Nanomaterials, 2021
The ability of magnetic nanoparticles (MNPs) to transform electromagnetic energy into heat is widely exploited in well-known thermal cancer therapies, such as magnetic hyperthermia, which proves useful in enhancing the radio- and chemo-sensitivity of ...
Riccardo Ferrero, Gabriele Barrera, Federica Celegato, Marta Vicentini, Hüseyin Sözeri, Nuray Yıldız, Ceren Atila Dinçer, Marco Coïsson, Alessandra Manzin, Paola Tiberto   +9 more
doaj   +1 more source

Numerical Simulations in Micromagnetism

, 2017
Ao nível quântico, os materiais ferromagnéticos são caracterizados por magnetismo resultante do spin dos eletrões cuja descrição completa requer a aplicação da Mecânica Quântica. Estes materiais quando T
openaire   +2 more sources

A Gauss–Seidel Projection Method for Micromagnetics Simulations [PDF]

Journal of Computational Physics, 2001
The dynamics of the magnetization distribution in a ferromagnetic thin film problem is studied in this paper. The relaxation process of the magnetization distribution in a ferromagnetic material is described by the Landau-Lifshitz equation for the saturation magnetization \(M = M(t)\). On of the main difficulties in micromagnetic simulation is a severe
Wang, Xiao Ping, Garcia-Cervera, Carlos, Weinan, E.W.   +2 more
openaire   +3 more sources

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source