Self-assembly of a surfactant-like flame-retardant POSS-bisDOPO in epoxy resin, can both enhance the flame retardancy and improve the mechanical properties of epoxy resin.

Cluster free, Co (3d) and Eu (4f) doped ZnO thin films were prepared using ion implantation technique accompanied by post annealing treatments. Compared with the mono-doped ZnO thin films, the samples codoped with Co and Eu exhibit a stronger magnetization with a giant coercivity of 1200 Oe at ambient temperature. This was further verified through x-ray magnetic circular dichroism analysis, revealing the exchange interaction between the Co 3d electrons and the localized carriers induced by Eu 3þ ions codoping. The insight gained with modulating coercivity in magnetic oxides opens up an avenue for applications requiring non-volatility in spintronic devices.

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Media having Cr-underlayer and NiP-underlayer were compared using transmission electron microscopy (TEM), delta-M, torque (vertical component), and media noise measurements. TEM micrographs show that NiP-underlayer media were more isolated than Cr-underlayer media. Of the Cr-underlayer media, CoCrTa media seem to exhibit grain isolation. The grain size of NiP-underlayer media was smaller (30 nm) than that of Cr-underlayer media (60 nm). Results indicate that media with isolated grains seem to have higher vertical component than media with more continuous grains. The NiP-underlayer media exhibits lower media noise than the Cr-underlayer media. This is attributed to smaller and more isolated grains in the NiP-underlayer media.

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