Ion irradiation induced enhancement of out-of-plane magnetic anisotropy in ultrathin Co films
P Mazalski, Z Kurant, A Maziewski, MO Liedke… - Journal of Applied …, 2013 - pubs.aip.org
Ga+ or He+ irradiated MBE grown ultrathin films of sapphire/Pt/Co (d Co)/Pt (d Pt) were
studied using polar Kerr effect in wide ranges of both cobalt d Co and platinum d Pt
thicknesses as well as ion fluences F. Two branches of increased magnetic anisotropy and
enhanced Kerr rotation angle induced by Ga+ or He+ irradiation are clearly visible in two-
dimensional (d Co, LogF) diagrams. Only Ga+ irradiation induces two branches of out-of-
plane magnetization state.
studied using polar Kerr effect in wide ranges of both cobalt d Co and platinum d Pt
thicknesses as well as ion fluences F. Two branches of increased magnetic anisotropy and
enhanced Kerr rotation angle induced by Ga+ or He+ irradiation are clearly visible in two-
dimensional (d Co, LogF) diagrams. Only Ga+ irradiation induces two branches of out-of-
plane magnetization state.
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