Nanostructures magnetic

Wang, D.S. and Li, Y.D. (2010) One-pot protocol for Au-based hybrid magnetic nanostructures via a noble-metal-induced reduction process. Journal of the American Chemical Society, 132 (18), 6280-6281. 

There is considerable interest in developing new types of magnetic materials, with a particular hope that ferroelectric solids and polymers can be constructed— materials having spontaneous electric polarization that can be reversed by an electric field. Such materials could lead to new low-cost memory devices for computers. The fine control of dispersed magnetic nanostructures will take the storage and tunability of magnetic media to new levels, and novel tunneling microscopy approaches allow measurement of microscopic hysteresis effects in iron nanowires. 

Control and Enhancement of Electrochemical Reactions using Magnetic Nanostructures on Electrodes... 

Accurate control of microstructure on nanometric scale makes it possible to control magnetic and mechanical properties to a hitherto unattainable degree. In particular, magnetic nanostructures have recently become the subject of an increasing number of experimental and theoretical studies. The materials are made of alternating layers, around 10 A thick, of magnetic (e.g., cobalt) and nonmagnetic metals (e.g., copper). 

The broad variety of magnetic nanostructures corresponds to a diverse range of processing methods. The suitability of individual methods depends on the length scale and geometry of the nanostructures. In addition, each method is usually restricted to a relatively narrow class of magnetic materials. 

After an introduction to methods of electronic structure calculations, we review how recent trends translate into the description of magnetic nanostructures. Among the considered structures are nanowires, small particles, surfaces and interfaces, and multilayers, and emphasis is on magnetic properties such as moment and magnetization, interatomic exchange, and anisotropy. 

Abstract The atomic-scale and mesoscopic physics of magnetic nanostructures is reviewed. 

J. P. Wang and T. J. Zhou, Patterned Magnetic Nanostructures (invited chapter) in Encyclopedia of Nanoscience and Nanotechnology, American Scientific Publishers, in press. 

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