Title :
Magnetic Force Microscopy of Low-Coercivity Ferromagnetic Nanodiscs
Author :
Mironov, Victor L. ; Gribkov, Boris A. ; Nikitushkin, Dmitry S. ; Gusev, Sergey A. ; Gaponov, Sergey V. ; Shubin, Andrey B. ; Zhdan, Peter A. ; Binns, Chris
Author_Institution :
Inst. for Phys. of microstructures, RAS, Nizhny Novgorod
Abstract :
We report the results of magnetic force microscopy (MFM) investigations of low-coercivity Co nanodiscs, with 50 nm lateral size and 20 nm height, fabricated by e-beam lithography and ion etching. We observed two types of MFM contrast in the form of Gaussian and ring distributions caused by strong probe-particle interaction. We compared experimentally the transformation of the MFM contrast from these low-coercivity nanodiscs caused by an external magnetic field applied in situ, and compared the experimental results with theoretical simulations.
Keywords :
cobalt; coercive force; discs (structures); magnetic force microscopy; nanolithography; nanostructured materials; sputter etching; Co; Gaussian distribution; e-beam lithography; ion etching; low coercivity ferromagnetic nanodiscs; low-coercivity cobalt nanodiscs; magnetic force microscopy; probe-particle interaction; ring distribution; size 20 nm; size 50 nm; Low-coercivity magnetic nanodiscs; magnetic force microscopy; tip-sample interaction;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2000811
