Magnetic domain structure in thin CoPt perpendicular magnetic anisotropy films

The Perpendicular Magnetic Anisotropy of CoPt/Au Multilayer Films

We have studied the magnetic properties of Au (2 nm)/Co50Pt50 (3 nm)/Au (2 nm) multilayer films prepared on amorphous Al2O3/Si and (0 0 1) MgO substrates. The as-deposited films on both substrates are magnetically soft with an FCC structure and exhibit a perpendicular anisotropy. After annealing at 500 °C, the sample on the Al2O3/Si substrate has become magnetically isotropic but the sample on ...

Nanostructured FePt:B2O3 thin films with perpendicular magnetic anisotropy

Influence of structural disorder on magnetic domain formation in perpendicular anisotropy thin films

M. S. Pierce,1,2,3 J. E. Davies,4,5 J. J. Turner,6,7 K. Chesnel,8 E. E. Fullerton,9,10 J. Nam,1 R. Hailstone,11 S. D. Kevan,6 J. B. Kortright,12 Kai Liu,4 L. B. Sorensen,3 B. R. York,13 and O. Hellwig14 1School of Physics and Astronomy, Rochester Institute of Technology, Rochester, New York 14623, USA 2Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 3Depart...

Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy

As an in-plane charge current flows in a heavy metal film with spin-orbit coupling, it produces a torque on and thereby switches the magnetization in a neighbouring ferromagnetic metal film. Such spin-orbit torque (SOT)-induced switching has been studied extensively in recent years and has shown higher efficiency than switching using conventional spin-transfer torque. Here we report the SOT-ass...

Magnetic Properties of Nanostructured CoPt and FePt Thin Films

Polycrystalline MgO underlayer films lead to different preferred orientations of 10 CoPt and FePt films after the annealing process, depending on the thickness of 10 films. 10 films with a thickness greater than 20 nm revealed mostly 10 [100] fiber texture and consequently in-plane anisotropy as determined by magnetic hysteresis. Strong perpendicular anisotropy due to the 10 [001] fiber texture...