Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems.
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.
Department of Physics, University of South Florida, Tampa, FL 33620, USA. phanm@usf.edu.
Manh-Huong
MH
Phan
Department of Physics, University of South Florida, Tampa, FL 33620, USA. jalonsomasa@gmail.com.|BCMaterials Building 500, Bizkaia Science and Technology Park, 48160 Derio, Spain. jalonsomasa@gmail.com.
Javier
J
Alonso
Department of Physics, University of South Florida, Tampa, FL 33620, USA. hafsamer@gmail.com.
Hafsa
H
Khurshid
Department of Physics, University of South Florida, Tampa, FL 33620, USA. lampenpa@gmail.com.
Paula
P
Lampen-Kelley
Department of Physics, University of South Florida, Tampa, FL 33620, USA. sayan.chandra@gmail.com.
Sayan
S
Chandra
Department of Physics, University of South Florida, Tampa, FL 33620, USA. kstojak@mail.usf.edu.
Kristen
K
Stojak Repa
Department of Physics, University of South Florida, Tampa, FL 33620, USA. zohrehnemati@mail.usf.edu.
Zohreh
Z
Nemati
Department of Physics, University of South Florida, Tampa, FL 33620, USA. rajadas@mail.usf.edu.
Raja
R
Das
Department of Fundamental Physics and Institute of Nanoscience and Nanotechnology (In2UB), University of Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain. oscariglesias@ub.edu.
Óscar
Ó
Iglesias
Department of Physics, University of South Florida, Tampa, FL 33620, USA. sharihar@usf.edu.
Hariharan
H
Srikanth
biomedicine; exchange bias; iron oxide; nanostructure; spintronics