Title :
Effect of Magnetic Tunneling Junction Sensor Size on Ferromagnetic Interlayer Coupling
Author :
Shuxia Wang ; GuangLi Liu ; Ching Tsang ; Weidong Li ; Simon Liao ; Yimin Hsu ; Chando Park ; Zheng Gao
Author_Institution :
Hitachi Global Storage Technol., San Jose, CA, USA
Abstract :
In this paper, we present experimental results of the ferromagnetic interlayer coupling effect in magnetic tunnel junction devices. This investigation is focused on the sensor size dependency of the ferromagnetic interlayer coupling. The geometry-dependent magnetostatic edge-coupling contribution is estimated by micromagnetic simulation and then subtracted from the net coupling field in order to obtain the correlation between ferromagnetic interlayer coupling and the sensor size.
Keywords :
RKKY interaction; boron alloys; cobalt alloys; ferromagnetic materials; iridium alloys; iron alloys; magnesium compounds; magnetic epitaxial layers; magnetic sensors; magnetic tunnelling; manganese alloys; micromagnetics; ruthenium; IrMn-CoFe-Ru-CoFeB-MgO-CoFe; ferromagnetic interlayer coupling effect; geometry-dependent magnetostatic edge-coupling contribution; magnetic tunnel junction devices; magnetic tunneling junction sensor size effect; micromagnetic simulation; net coupling field; sensor size dependency; Couplings; Junctions; Magnetic domains; Magnetic moments; Magnetic tunneling; Magnetostatics; Micromagnetics; Ferromagnetic interlayer coupling; magnetic tunnel junctions (MTJs); micromagnetic modeling;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2147297
