Polymer-coated metal and alloy particles for magnetic recording

Swisher, J. H.; Robbins, Mark O.; Sherwood, R. C.; Fuchs, E. O.; Lockwood, W.; Keilp, J.

doi:10.1109/tmag.1971.1067020

Cited by 5 publications

(2 citation statements)

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“…Magnetic alloy nanoparticles offer a broad range of applications in catalysis [1][2][3], biomedicine [4][5][6], magnonics [7], and information technology [8,9]. Many applications require a colloidal form of the particles in water, organic solvents, or in polymer solutions for nanoparticle-polymer composites [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Laser ablation in liquids (LAL) is a top-down approach, which needs no stabilizers or precursors to produce colloidal nanoparticles. [7] It has been proven to be a scalable and versatile process [19,20] due to the free choice of the target material and solvent [19]. Often LAL leads to the formation of oxides or metal complexes during ablation of metals.…”

Section: Introductionmentioning

confidence: 99%

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Controlling the Oxidation of Magnetic and Electrically Conductive Solid-Solution Iron-Rhodium Nanoparticles Synthesized by Laser Ablation in Liquids

et al. 2020

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This study focuses on the synthesis of FeRh nanoparticles via pulsed laser ablation in liquid and on controlling the oxidation of the synthesized nanoparticles. Formation of monomodal γ-FeRh nanoparticles was confirmed by transmission electron microscopy (TEM) and their composition confirmed by atom probe tomography (APT). For these particles, three major contributors to oxidation were analysed: (1) dissolved oxygen in the organic solvents, (2) the bound oxygen in the solvent and (3) oxygen in the atmosphere above the solvent. The decrease of oxidation for optimized ablation conditions was confirmed through energy-dispersive X-ray (EDX) and Mössbauer spectroscopy. Furthermore, the time dependence of oxidation was monitored for dried FeRh nanoparticles powders using ferromagnetic resonance spectroscopy (FMR). By magnetophoretic separation, B2-FeRh nanoparticles could be extracted from the solution and characteristic differences of nanostrand formation between γ-FeRh and B2-FeRh nanoparticles were observed.

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