Observation of anisotropic magneto-inductance effect

We have discovered a new phenomenon that inductance oscillates as a function of the angle between an in-plane magnetic field and an electric current direction in permalloy films, which we have named the anisotropic magneto-inductance (AML) effect. We have investigated the dependences of the AML effect on the size and voltage. The length, frequency, and amplitude dependences suggest that the AML effect should be evaluated in terms of inductivity. Inductors based on this AML effect have the potential to be variable, on-chip, and one billion times smaller than the small commercial inductor. (c) 2023 The Japan Society of Applied Physics

Automated summary

We have discovered a new phenomenon called the anisotropic magneto-inductance (AML) effect, where inductance oscillates in permalloy films as a function of the angle between an in-plane magnetic field and an electric current direction. We have investigated the dependence of the AML effect on size and voltage, and found that it should be evaluated in terms of inductivity based on length, frequency, and amplitude dependences. Inductors utilizing this AML effect have potential to be variable, on-chip, and significantly smaller than small commercial inductors.