Angular dependence of ferromagnetic resonance measurements in exchange coupled Ni80Fe20/NiO bilayers

作者：Grenda N H G^*; Hyde P A; Gui Y S; Wismayer M P; Jung J D A; Hu C M; Southern B W; Lin K W

来源：Journal of Physics D: Applied Physics , 2013, 46(20): 205002.

DOI：10.1088/0022-3727/46/20/205002

We investigate the angular dependence of the ferromagnetic resonance (FMR) frequency in a Ni80Fe20/NiO bilayer for varied external magnetic fields by means of broadband microwave absorption spectroscopy. The dispersion curves of the FMR frequencies exhibit an angular-dependent low-field behaviour not predicted by current ferromagnetic/antiferromagnetic interface models. Our experimental data can be modelled using a single domain approach assuming that NiO introduces anisotropies at the interface.

• 出版日期2013-5-22