Magnetic force microscopy of low-coercivity ferromagnetic nanodiscs

作者：Mironov Victor L; Gribkov Boris A; Nikitushkin Dmitry S; Gusev Sergey A; Gaponov Sergey V; Shubin Andrey B; Zhdan Peter A; Binns Chris

来源：IEEE Transactions on Magnetics, 2008, 44(10): 2296-2298.

DOI：10.1109/TMAG.2008.2000811

• low-coercivity magnetic nanodiscs
• magnetic force microscopy
• tip-sample interaction

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 NUM contrast from these low-coercivity nanodiscs; caused by an external magnetic field applied in situ, and compared the experimental results with theoretical simulations.

• 出版日期2008-10