Details

Autor(en) / Beteiligte

• Majetich, Sara A.

Titel

10 - Magnetic Nanoparticles and Their Applications

Ist Teil von

• Nanostructured Materials, 2007, p.439-485

Auflage

Second Edition

Ort / Verlag

Elsevier Inc

Erscheinungsjahr

2007

Link zum Volltext

Quelle

ScienceDirect eBooks

Beschreibungen/Notizen

• This chapter discusses magnetic nanoparticles and their applications. There are many exciting new developments in the field of monodomain magnetic nanoparticles, concerning rich and subtle physics and important applications. With the ability to prepare highly monodisperse particles, more details concerning size and surface-dependent effects are being revealed. The ability to stabilize magnetic nanoparticles in liquids and to control their motion is starting to have a significant impact in biomedicine, which is likely to expand in the future. Magnetic data storage is rapidly approaching the super paramagnetic limit and will require a paradigm shift to patterned media to continue increasing the information storage density. Further advances may lead to magnetic RAM and perhaps to magnetic transistors as well. The chapter focuses on nanoparticles based on traditional ferromagnetic materials, but the next nanoparticles of interest may be made from ferromagnetic semiconductors for spintronic application, or of multiferroics, where an applied electric field can switch the magnetization direction in an insulating material.