Microstructured magnetic tunnel junction rings have been fabricated by a top-down
technique combining electron beam lithography and ion milling process. Four-terminal …

Domain wall motion through current-induced Oersted field was investigated by magnetic
force microscopy, magnetoresistance measurement, and micromagnetic simulation …

The size dependence of magnetization reversal of magnetic tunnel junction (MTJ) rings has
been investigated. The MTJ rings, with outer diameter of 4, 2 and 1μm and inner diameter of …

The remanent state of elliptical permalloy nanodisks depends on the orientation of the
applied magnetic field with respect to the major and minor axes of the nanodisks [AC Mishra …

We briefly introduce our recent works on magnetization processes of ferromagnetic rings by
micromagnetic simulation and experiments. Three metastable states are found in ring …