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Nanomaterials 2016, 6(11), 221;

Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems

Department of Physics, University of South Florida, Tampa, FL 33620, USA
BCMaterials Building 500, Bizkaia Science and Technology Park, 48160 Derio, Spain
Department of Fundamental Physics and Institute of Nanoscience and Nanotechnology (In2UB), University of Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain
Authors to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 24 August 2016 / Revised: 29 October 2016 / Accepted: 2 November 2016 / Published: 23 November 2016
(This article belongs to the Special Issue Functional Magnetic Nanoparticles in Nanomedicine)
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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. View Full-Text
Keywords: iron oxide; nanostructure; exchange bias; spintronics; biomedicine iron oxide; nanostructure; exchange bias; spintronics; biomedicine

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Phan, M.-H.; Alonso, J.; Khurshid, H.; Lampen-Kelley, P.; Chandra, S.; Stojak Repa, K.; Nemati, Z.; Das, R.; Iglesias, Ó.; Srikanth, H. Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems. Nanomaterials 2016, 6, 221.

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