Results 51 to 60 of about 1,342 (197)

Spectral fingerprinting: microstate readout via remanence ferromagnetic resonance in artificial spin ice

open access: yesNew Journal of Physics, 2022
Artificial spin ices (ASIs) are magnetic metamaterials comprising geometrically tiled strongly-interacting nanomagnets. There is significant interest in these systems spanning the fundamental physics of many-body systems to potential applications in ...
Alex Vanstone   +5 more
doaj   +1 more source

Control of Dynamics in Weak PMA Magnets

open access: yesMagnetochemistry, 2021
We have recently shown that a hybrid magnetic thin film with orthogonal anisotropies presenting weak stripe domains can achieve a high degree of controllability of its ferromagnetic resonance.
Luis M. Álvarez-Prado
doaj   +1 more source

Halfvortices in Flat Nanomagnets [PDF]

open access: yes, 2008
We discuss a new type of topological defect in XY systems where the O(2) symmetry is broken in the presence of a boundary. Of particular interest is the appearance of such defects in nanomagnets with a planar geometry. They are manifested as kinks of magnetization along the edge and can be viewed as halfvortices with winding numbers \pm 1/2.
Chern, Gia-Wei   +3 more
openaire   +2 more sources

Physics‐Grounded Probabilistic Bits for Hardware‐Efficient Intelligent Inference and Optimization

open access: yesAdvanced Intelligent Systems, EarlyView.
Si–SiNx interface traps are harnessed as a complementary metal–oxide–semiconductor‐compatible source of controllable randomness for probabilistic bits. Pulse‐width‐programmed stochastic capture converts nanoscale defect dynamics into Boltzmann‐consistent binary outputs, while a physics‐based Simulation Program with Integrated Circuit Emphasis model ...
Dokyoung Lee   +3 more
wiley   +1 more source

Fabrication of Scaffold-Based 3D Magnetic Nanowires for Domain Wall Applications

open access: yesNanomaterials, 2018
Three-dimensional magnetic nanostructures hold great potential to revolutionize information technologies and to enable the study of novel physical phenomena.
Dédalo Sanz-Hernández   +10 more
doaj   +1 more source

Iron Oxide Nanorings and Nanotubes for Magnetic Hyperthermia: The Problem of Intraparticle Interactions

open access: yesNanomaterials, 2021
Magnetic interactions can play an important role in the heating efficiency of magnetic nanoparticles. Although most of the time interparticle magnetic interactions are a dominant source, in specific cases such as multigranular nanostructures ...
Raja Das   +8 more
doaj   +1 more source

Safety and Feasibility of Magnetic Separation‐Based Blood Purification

open access: yesAdvanced NanoBiomed Research, EarlyView.
We present the preclinical biological safety and translational feasibility of a magnetic nanoparticle‐based extracorporeal blood purification platform for removal of disease‐causing blood factors. ISO 10993‐compliant studies and exaggerated worst‐case exposure models demonstrate efficient nanoparticle extraction (≥99.9%), favorable biocompatibility ...
Carlos A. Mora   +11 more
wiley   +1 more source

Scaling Up Molecular Electron Spin Qubits Around a Core‐Shell Quantum Dot

open access: yesChemistry – A European Journal, EarlyView.
Making assemblies of molecular nanomagnet (MNM) qubits is an essential step toward scalable quantum devices. Here, SH‐functionalized {Cr7Ni} antiferromagnetic rings with ability as MNM qubits were successfully grafted to the surface of fluorescent CdSe/ZnS quantum dots (QD).
Simon G. McAdams   +8 more
wiley   +1 more source

Tailoring magnetic domains in Gd-Fe thin films

open access: yesAIP Advances, 2018
This paper presents the global modification of magnetic domains and magnetic properties in amorphous Gd19Fe81 thin films with rapid thermal processing at two distinct temperatures (250oC and 450oC), and with different time intervals viz., 2, 5, 10 and 20
A. Talapatra   +2 more
doaj   +1 more source

Structural Disorder and Collective Behavior of Two-Dimensional Magnetic Nanostructures

open access: yesNanomaterials, 2021
Structural disorder has been shown to be responsible for profound changes of the interaction-energy landscapes and collective dynamics of two-dimensional (2D) magnetic nanostructures. Weakly-disordered 2D ensembles have a few particularly stable magnetic
David Gallina, G. M. Pastor
doaj   +1 more source

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