Chemical synthesis of narrowly dispersed SmCo5 nanoparticles

Hongwei Gu*, Bing Xu, Jiancun Rao, R. K. Zheng, Xixiang Zhang, K. K. Fung, Catherine Y.C. Wong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

A report on chemical synthesis of dispersed SmCo5 nanoparticles was presented. Transmission electron microscopy (TEM), electron diffraction, and x-ray photoelectron spectroscopy (XPS), indicated the size of the nanoparticles as 6-8 nm in diameter with a SmCo5 composition. It was found that the magnetization measurements of the nanoparticles revealed superparamagnetism, which was blocked for temperatures below ∼110 k. It was suggested that high magnetocrystalline anisotropy constants (Ku) to be ∼2.1×106 erg/cm3 for the as-prepared particles.

Original languageEnglish (US)
Pages (from-to)7589-7591
Number of pages3
JournalJournal of Applied Physics
Volume93
Issue number10 2
DOIs
StatePublished - May 15 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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