Magnetic anisotropy FMR studies of Co films grown between Mo or Au buffer and Mo or Au overlayers

作者：Gieniusz R; Baczewski L T^*; Kurant Z; Maziewski A; Wawro A

来源：Journal of Magnetism and Magnetic Materials, 2007, 310(2): 2198-2200.

DOI：10.1016/j.jmmm.2006.10.758

• ultrathin film
• FMR
• anisotropy

The magnetic in-plane anisotropy as a dependence on Co film thickness in X/Co/X ( where X = Mo or Au) sandwich structures were investigated by the ferromagnetic resonance method in the Co thickness range where magnetization is mainly in-plane oriented. The in-plane anisotropy was observed in all Au/Co/Au, Au/Co/Mo, Mo/Co/Au and Mo/Co/Mo samples. Large ( up to 1.5 kOe) in-plane anisotropy field was found for Mo/Co/Au sample which is related with anisotropic strain distribution during growth of Co( 0 0 0 1) on Mo( 1 1 0) buffer layer. On the other hand, Mo as the overlayer has much smaller contribution to the in-plane anisotropy, which might be connected with pseudomorphic growth of Mo on Co with C3 symmetry.

• 出版日期2007-3