Skip to Main content Skip to Navigation
Journal articles

Size dependence of magnetic switching in perpendicularly magnetized MgO/Co/Pt pillars close to the spin reorientation transition

Abstract : We investigated the magnetic switching of MgO/Co/Pt pillars with perpendicular magnetic anisotropy, for lateral pillar sizes from 30 nm to 2 lm and for Co layer thicknesses between 1.8 and 2.6 nm. For large pillars, both the coercivity and the remanent magnetization decrease for increasing Co thickness. For all Co thicknesses, the coercivity strongly increases upon decreasing the pillar size. A comparison with micromagnetic simulations shows that the change in coercivity is determined by size-dependent demagnetizing effects. Our results show that small pillars with perpendicular magnetization and a tunable coercivity can be fabricated from continuous layers with in-plane magnetization.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00926092
Contributor : Jan Vogel <>
Submitted on : Thursday, January 9, 2014 - 10:06:15 AM
Last modification on : Friday, December 18, 2020 - 1:10:03 PM

Links full text

Identifiers

Collections

Citation

W. Stefanowicz, Lavinia Nistor, Stefania Pizzini, Wolfgang Kuch, L. D. Buda-Prejbeanu, et al.. Size dependence of magnetic switching in perpendicularly magnetized MgO/Co/Pt pillars close to the spin reorientation transition. Applied Physics Letters, American Institute of Physics, 2014, 104 (1), pp.012404. ⟨10.1063/1.4860985⟩. ⟨hal-00926092⟩

Share

Metrics

Record views

658