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

doi:10.3390/nano6110221

Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems

Nanomaterials (Basel). 2016 Nov 23;6(11):221. doi: 10.3390/nano6110221.

Authors

Manh-Huong Phan¹, Javier Alonso^{2

3}, Hafsa Khurshid⁴, Paula Lampen-Kelley⁵, Sayan Chandra⁶, Kristen Stojak Repa⁷, Zohreh Nemati⁸, Raja Das⁹, Óscar Iglesias¹⁰, Hariharan Srikanth¹¹

Affiliations

¹ Department of Physics, University of South Florida, Tampa, FL 33620, USA. phanm@usf.edu.
² Department of Physics, University of South Florida, Tampa, FL 33620, USA. jalonsomasa@gmail.com.
³ BCMaterials Building 500, Bizkaia Science and Technology Park, 48160 Derio, Spain. jalonsomasa@gmail.com.
⁴ Department of Physics, University of South Florida, Tampa, FL 33620, USA. hafsamer@gmail.com.
⁵ Department of Physics, University of South Florida, Tampa, FL 33620, USA. lampenpa@gmail.com.
⁶ Department of Physics, University of South Florida, Tampa, FL 33620, USA. sayan.chandra@gmail.com.
⁷ Department of Physics, University of South Florida, Tampa, FL 33620, USA. kstojak@mail.usf.edu.
⁸ Department of Physics, University of South Florida, Tampa, FL 33620, USA. zohrehnemati@mail.usf.edu.
⁹ Department of Physics, University of South Florida, Tampa, FL 33620, USA. rajadas@mail.usf.edu.
¹⁰ Department of Fundamental Physics and Institute of Nanoscience and Nanotechnology (In2UB), University of Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain. oscariglesias@ub.edu.
¹¹ Department of Physics, University of South Florida, Tampa, FL 33620, USA. sharihar@usf.edu.

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.

Keywords: biomedicine; exchange bias; iron oxide; nanostructure; spintronics.

Publication types

Review