Results 41 to 50 of about 300,341 (383)

MAGNETIZATION OF AMORPHOUS MAGNETS

open access: yesLe Journal de Physique Colloques, 1979
The temperature dependence of the distribution of the magnetic moment in an amorphous magnet, where the exchange interactions and the magnitude of the magnetic moment at O K are random variables, has been investigated. In particular, we considered the two-limiting cases, the one with the fixed spin and the other with the fixed interaction.
Inawashiro, S.   +2 more
openaire   +3 more sources

Atomic-scale control of graphene magnetism by using hydrogen atoms [PDF]

open access: yesScience, 2016
Hydrogen atom makes graphene magnetic Graphene has many extraordinary mechanical and electronic properties, but it's not magnetic. To make it so, the simplest strategy is to modify its electronic structure to create unpaired electrons. Researchers can do
H. González-Herrero   +9 more
semanticscholar   +1 more source

Stacking tunable interlayer magnetism in bilayer CrI3 [PDF]

open access: yesPhysical review B, 2018
Diverse interlayer tunability of physical properties of two-dimensional layers mostly lies in the covalent-like quasi-bonding that is significant in electronic structures but rather weak for energetics.
Peiheng Jiang   +6 more
semanticscholar   +1 more source

The 2020 magnetism roadmap

open access: yesJournal of Physics D: Applied Physics, 2020
Andreas Berger CICnanoGUNE BRTA Following the success and relevance of the 2014 and 2017 Magnetism Roadmap articles, this 2020 Magnetism Roadmap edition takes yet another timely look at newly relevant and highly active areas in magnetism research.
E. Vedmedenko   +14 more
semanticscholar   +1 more source

Magnetization dynamics and reversal of two-dimensional magnets [PDF]

open access: yesarXiv, 2022
Micromagnetics simulation based on the classical Landau-Lifshitz-Gilbert (LLG) equation has long been a powerful method for modeling magnetization dynamics and reversal of three-dimensional (3D) magnets. For two-dimensional (2D) magnets, the magnetization reversal always accompanies the collapse of the magnetization even at low temperatures due to ...
arxiv  

Wideband Millimeter-Wave Perforated Cylindrical Dielectric Resonator Antenna Configuration

open access: yesMagnetism
This article delves into the capabilities of 3D-printed millimeter-wave (mmWave) layered cylindrical dielectric resonator antennas (CDRAs). The proposed design yielded promising results, boasting a remarkable 53% impedance bandwidth spanning the ...
Waled Albakosh   +4 more
doaj   +1 more source

Numerically Stable and Computationally Efficient Expression for the Magnetic Field of a Current Loop

open access: yesMagnetism, 2022
In this work, it is demonstrated that straightforward implementations of the well-known textbook expressions of the off-axis magnetic field of a current loop are numerically unstable in a large region of interest.
Michael Ortner   +2 more
doaj   +1 more source

Transforming magnets [PDF]

open access: yes, 2014
Based on the form-invariant of Maxwell's equations under coordinate transformations, we extend the theory of transformation optics to transformation magneto-statics, which can design magnets through coordinate transformations. Some novel DC magnetic field illusions created by magnets (e.g.
arxiv   +1 more source

Magnetic winding: what is it and what is it good for? [PDF]

open access: yes, 2020
Magnetic winding is a fundamental topological quantity that underpins magnetic helicity and measures the entanglement of magnetic field lines. Like magnetic helicity, magnetic winding is also an invariant of ideal magnetohydrodynamics. In this article we give a detailed description of what magnetic winding describes, how to calculate it and how to ...
arxiv   +1 more source

Image quality comparisons of coil setups in 3T MRI for brain and head and neck radiotherapy simulations

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose MRI is increasingly used for brain and head and neck radiotherapy treatment planning due to its superior soft tissue contrast. Flexible array coils can be arranged to encompass treatment immobilization devices, which do not fit in diagnostic head/neck coils. Selecting a flexible coil arrangement to replace a diagnostic coil should rely
Evangelia Kaza   +6 more
wiley   +1 more source

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