Cluster synthesis and direct ordering of rare-earth transition-metal nanomagnets

Balamurugan Balasubramanian, Ralph Skomski, Xingzhong Li, Shah R. Valloppilly, Jeffrey E. Shield, George C. Hadjipanayis, David J. Sellmyer

Research output: Contribution to journalArticle

50 Scopus citations

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 YCo5 and Y2Co17, without high-temperature thermal annealing by employing a cluster-deposition system and investigate their structural and magnetic properties. The direct ordering is highly desirable to create and assemble R-TM nanoparticle building blocks for future permanent-magnet and other significant applications.

Original languageEnglish (US)
Pages (from-to)1747-1752
Number of pages6
JournalNano Letters
Volume11
Issue number4
DOIs
StatePublished - Apr 13 2011

Keywords

  • Nanoparticles
  • cluster-deposition
  • crystalline ordering
  • magnetic properties
  • rare-earth transition-metal alloys

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Cluster synthesis and direct ordering of rare-earth transition-metal nanomagnets'. Together they form a unique fingerprint.

  • Cite this

    Balasubramanian, B., Skomski, R., Li, X., Valloppilly, S. R., Shield, J. E., Hadjipanayis, G. C., & Sellmyer, D. J. (2011). Cluster synthesis and direct ordering of rare-earth transition-metal nanomagnets. Nano Letters, 11(4), 1747-1752. https://doi.org/10.1021/nl200311w