Exchange bias effects in iron oxide-based nanoparticle systems

Manh Huong Phan, Javier Alonso, Hafsa Khurshid, Paula Lampen-Kelley, Sayan Chandra, Kristen Stojak Repa, Zohreh Nemati, Raja Das, Óscar Iglesias, Hariharan Srikanth

Research output: Contribution to journalReview articlepeer-review

65 Scopus citations

Abstract

The exploration of exchange bias (EB) on the nanoscale provides a novel approach to improving the anisotropic properties of magnetic nanoparticles for prospective applications in nanospintronics and nanomedicine. However, the physical origin of EB is not fully understood. Recent advances in chemical synthesis provide a unique opportunity to explore EB in a variety of iron oxide-based nanostructures ranging from core/shell to hollow and hybrid composite nanoparticles. Experimental and atomistic Monte Carlo studies have shed light on the roles of interface and surface spins in these nanosystems. This review paper aims to provide a thorough understanding of the EB and related phenomena in iron oxide-based nanoparticle systems, knowledge of which is essential to tune the anisotropic magnetic properties of exchange-coupled nanoparticle systems for potential applications.

Original languageEnglish (US)
Article number221
JournalNanomaterials
Volume6
Issue number11
DOIs
StatePublished - Nov 2016

Keywords

  • Biomedicine
  • Exchange bias
  • Iron oxide
  • Nanostructure
  • Spintronics

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