20 research outputs found
Magnetic anisotropy at nanoscale
Nanoscale objects often behave differently than their 'normal-sized'
counterparts. Sometimes it is enough to be small in just one direction to
exhibit unusual features. One example of such a phenomenon is a very specific
in-plane magnetic anisotropy observed sometimes in very thin layers of various
materials. Here we recall a peculiar form of the free energy functional nicely
describing the experimental findings but completely irrelevant and thus never
observed in larger objects.Comment: 5 pages, 2 figures, accepted by Journal of Nanotechnology. PACS
numbers: 75.30.Gw, 75.70.Rf, 75.75.+