Patent ID: 9299918
Filing Date: 2016-03-29
CPC Classification: H01F,H01L

Claim Text:
1. A magnetoresistive element comprising: a first ferromagnetic layer having an axis of easy magnetization in a direction perpendicular to a film plane, a magnetization direction of the first ferromagnetic layer being changeable; a second ferromagnetic layer having an axis of easy magnetization in a direction perpendicular to the film plane, a magnetization direction of the second ferromagnetic layer being fixed; a first nonmagnetic layer provided between the first ferromagnetic layer and the second ferromagnetic layer; and a third ferromagnetic layer provided on an opposite side from the first nonmagnetic layer relative to the second ferromagnetic layer, and including a plurality of ferromagnetic oscillators generating rotating magnetic fields of different oscillation frequencies from one another, each of the oscillators having a magnetization parallel to the film plane, the rotating magnetic fields being generated by flowing a current between the first ferromagnetic layer and the third ferromagnetic layer and at least one of the rotating magnetic fields being applied at a magnetization switching in the first ferromagnetic layer.