@inproceedings{21b7ea0504fb4decb5f3062d5f57fa90,
title = "Cluster synthesis, direct ordering, and alignment of rare-earth transition-metal nanomagnets",
abstract = "Rare-earth transition-metal (R-TM) alloys show superior permanent magnetic properties in the bulk, but the synthesis and application of R-TM nanoparticles remains a challenge due to the requirement of high-temperature annealing above about 800°C for alloy formation and subsequent crystalline ordering. Here we report a single-step method to produce highly ordered R-TM nanoparticles such as YCo 5 and SmCo 5, without high-temperature thermal annealing by employing a cluster-deposition system, and we investigate their structural and magnetic properties. Nanoparticles of size d ≤ 10 nm are monodispersed (σ/d≈ 0.15) and have H c values at T = 300 K of 8.0 and 4.5 kOe for YCo 5 and SmCo 5, respectively. Alignment of the easy axes is performed via a field applied to the clusters before deposition. These processing steps are highly desirable to create and assemble R-TM nanoparticle composites for future permanent-magnet applications.",
keywords = "Cluster-deposition, Direct ordering, Easy axis alignment, Magnetic nanoparticles",
author = "B. Balamurugan and R. Skomski and {Le Roy}, Damien and Hadjipanayis, {G. C.} and Shield, {J. E.} and Sellmyer, {D. J.}",
year = "2012",
language = "English (US)",
isbn = "9781118291382",
series = "TMS Annual Meeting",
pages = "385--390",
booktitle = "Energy Technology 2012",
note = "Energy Technology 2012: Carbon Dioxide Management and Other Technologies - TMS 2012 Annual Meeting and Exhibition ; Conference date: 11-03-2012 Through 15-03-2012",
}