Magnetic Phase Transitions in Nanocrystalline Erbium

摘要

Nanocrystalline samples of 99.9% pure erbium with particle sizes between 10 and 70 nm have been produced by the inert gas condensation technique. Magnetic susceptibility measurements on samples compacted to between 50 and 75% of bulk density indicate a modification in the high temperature phases and superparamagnetic behavior at low temperatures. ESR signals near g = 10 are probably due to Er compounds which may form during the production process. (ERA citation 12:016255)