Results 41 to 50 of about 17,687 (253)

The remanence ratio in CoFe2O4 nanoparticles with approximate single-domain sizes

open access: yesNanoscale Research Letters, 2016
Approximately single-domain-sized 9-, 13-, and 16-nm CoFe2O4 nanoparticles are synthesized using the thermal decomposition of a metal-organic salt. By means of dilution and reduction, the concentration, moment, and anisotropy of nanoparticles are changed
Shitao Xu   +4 more
semanticscholar   +1 more source

Striped domains of coarse-grained magnetite observed by X-ray photoemission electron microscopy as a source of the high remanence of granites in the Vredefort dome

open access: yesFrontiers in Earth Science, 2015
The characteristics of a coarse-grained high-remanence magnetite obtained from shocked Vredefort granite were investigated by X-ray magnetic circular dichroism (XMCD) analysis and X-ray absorption spectroscopy (XAS).
Hiroto eKubo   +5 more
doaj   +1 more source

Effects of heat treatment processes on microstructural evolution and magnetic properties in medium-carbon low-alloy semi-hard magnetic steels

open access: yesCailiao gongcheng
To obtain Fe-based medium-carbon low-alloy semi-hard magnetic steels with high residual magnetic flux density Br, five distinct heat treatment processes are employed: full annealing, air quenching (AQ), water quenching (WQ), air quenching followed by ...
LI Jun   +5 more
doaj   +1 more source

Electrochemical Deposition of CoP and CoNiP as Hard Magnetic Scales in a Position Measurement System

open access: yesMetals, 2022
The fabrication and design of hard magnetic materials for micro-electro-mechanical system applications by electrochemical deposition has to consider not only the intrinsic material properties but also the shape anisotropy of the micro-devices. Within the
Martin Theis   +4 more
doaj   +1 more source

Tectonic Inversion of the SCS from 3-D Magnetization Vector Clustering: Evidence for Differential Rotation and Ridge Jump

open access: yesApplied Sciences
The eastern and southwestern sub-basins of the South China Sea (SCS) display starkly contrasting magnetic lineation patterns, yet quantitative 3-D mapping of the subsurface magnetic architecture—essential for deciphering basin evolution—remains ...
Juechang Wan, Shuling Li, Zhe Ji
doaj   +1 more source

Tunneling, remanence, and frustration in dysprosium-based endohedral single-molecule magnets [PDF]

open access: yes, 2013
Paramagnetic atoms inside nanometer sized fullerenes realize robust, and chemically protected, spin systems. Changing the stoichiometry of the endohedral clusters results in a variety of magnetic ground states, as it is demonstrated for DynSc3-nN@C-80 (n
R. Westerstrom   +11 more
semanticscholar   +1 more source

Applied Magnetic Field Increases Magnetic Anisotropy in HDDR-Processed Nd-Fe-B Alloy

open access: yesMetals
We investigate the effect of an applied magnetic field on the entire HDDR process using a customized reactor vessel and a warm-bore superconducting magnet.
Zachary P. Tener   +5 more
doaj   +1 more source

Remanence cycling of 0.6–135 µm magnetites across the Verwey transition

open access: yesEarth, Planets and Space, 2018
We report zero-field low-temperature cycling of saturation remanence (SIRM) produced at 300 or 10 K for crushed natural magnetites in nine size fractions from 0.6 to 135 µm, one set annealed to reduce stress, the other unannealed.
David J. Dunlop, Özden Özdemir
doaj   +1 more source

Production of (Sm,Zr)(Fe,Co)3 magnets

open access: yesHeliyon, 2022
This study was aimed at the improvement of SmFe3-based alloys prepared by means of melt-spinning. A systematic study was carried out on (Sm1-xZrx)(Fe0.75Co0.25)3 (x = 0–0.4) alloys melt-spun at a wheel speed of 50 m/s and annealed at 773–1173 K.
Tetsuji Saito
doaj   +1 more source

Tunable Magnetic Properties of Interconnected Permalloy Nanowire Networks

open access: yesNanomaterials, 2023
In this study, we investigate the magnetic properties of interconnected permalloy nanowire networks using micromagnetic simulations. The effects of interconnectivity on the hysteresis curves, coercivity, and remanence of the nanowire networks are ...
Alejandro Pereira   +3 more
doaj   +1 more source

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