ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
We have studied the magnetic properties of Co-Fe circular dot arrays with variousthicknesses and diameters in order to determine the optimum thickness and diameter of these dotarrays with a single-domain state for the transmission of spin information. For the thickness of 10 nm,the magnetic state changes from a multi-domain state to a closure-domain state and further to asingle-domain state with decreasing diameter. On the other hand, for the thickness of 30 nm and 50nm, all magnetic states are in a vortex state, regardless of the diameter. From these results, it is foundthat the optimum thickness and diameter of Co-Fe circular dots with a single-domain state are,respectively, 10 nm and less than 100 nm
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.879.pdf