ELECTRIC FERROMAGNETIC RESONANCE EXCITATION METHOD AND MAGNETIC FUNCTION ELEMENT EMPLOYING SAME

摘要

Provided are a low power consumption electric field-driven ferromagnetic resonance excitation method which is driven with an electric field, a spin wave signal generation element and a spin flow signal generation element using said method, a logic element using said elements, or a high-frequency sensing element and magnetic function element such as a magnetic recording device using said method. An ultra-thin film ferromagnetic layer with sufficient thinness such that an electric shield effect caused by conduction electrons does not arise is directly layered with a magnetic anisotropy control layer. A magnetic field having a specified magnetic application angle and magnetic field strength is applied to a layered structure body in which an insulation barrier layer and an electrode layer are positioned in said order on the ultra-thin film ferromagnetic layer side. Applying an electrical field having a high frequency component of a magnetic resonance frequency between the magnetic anisotropy control layer and the electrode layer efficiently excites the ferromagnetic resonance in the ultra-thin film ferromagnetic layer.