Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5490119 | Journal of Magnetism and Magnetic Materials | 2017 | 6 Pages |
Abstract
The magnetic anisotropy (MA) of Mo/Au/Co0.9Fe0.1/Au/MgO(0.7-3Â nm)/Au/Co0.9Fe0.1/Au heterostructure has been investigated at room temperature as a function of MgO layer thickness (tMgO). Our studies show that while the MA of the top layer does not change its character upon variation of tMgO, the uniaxial out-of-plane MA of the bottom one undergoes a spin reorientation transition at tMgO of about 0.8Â nm, switching to the regime where the coexistence of in- and out-of-plane magnetization alignments is observed. The magnitudes of the magnetic anisotropy constants have been determined from ferromagnetic resonance and dc-magnetometry measurements. The origin of MA evolution has been attributed to a presence of an interlayer exchange coupling (IEC) between Co0.9Fe0.1 layers through the thin MgO film.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
K. Lasek, L. Gladczuk, M. Sawicki, P. Aleshkevych, P. Przyslupski,