Nanomagnetism in Otherwise Nonmagnetic Materials

Authored by: Tatiana Makarova

1 Handbook of Nanophysics

Print publication date:  September  2010
Online publication date:  September  2010

Print ISBN: 9781420075403
eBook ISBN: 9781420075410
Adobe ISBN:


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The physics of nanomagnetism is concerned with the studies of magnetic phenomena specific to nanostructured materials, i.e., materials with the size of typical structural elements from 1 to 100 nm. A porous specimen built of small particles is the simplest example of a nanostructured material. Due to dramatically enhanced surface-to-volume ratio, the magnetic properties of nanoparticles may be markedly different from those of the bulk material with the same chemical composition. Numerous experiments show that the magnetic properties of bulk ferromagnetic and antiferromagnetic materials are modified in the corresponding nanomaterials. Most surprisingly, nanostruc-tured materials or thin films may show ferromagnetism at room temperatures (RTFM) even when the starting material is magnetically inactive.

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