Patent ID: 9460769
Filing Date: 2016-10-04
CPC Classification: B82Y,G11B,G11C,H01F,H01L,H03B

Claim Text:
1. An electric field-driven type ferromagnetic resonance excitation method, comprising: applying a magnetic field having a specific magnetic field application angle and magnetic field strength to a laminate structure in which an ultrathin ferromagnetic layer sufficiently thin so that an electric field shield effect by conduction electrons does not occur and a magnetic anisotropy control layer are directly stacked on each other and an insulation barrier layer and an electrode layer are arranged in order on the ultrathin ferromagnetic layer side, wherein a resistance-area value of the insulation barrier layer is greater than or equal to 10 Ωμm applying an electric field having a high-frequency component of a magnetic resonance frequency between the magnetic anisotropy control layer and the electrode layer, thereby exciting ferromagnetic resonance in the ultrathin ferromagnetic layer.