Spin current magnetization rotational element, method of manufacturing the same, magnetoresistance effect element, and magnetic memory

A spin current magnetization rotational element, comprising:

• a first ferromagnetic metal layer having a variable magnetization direction;
• and
• a spin-orbital torque wiring which is joined to the first ferromagnetic metal layer and extends in a direction crossing a direction perpendicular to a plane of the first ferromagnetic metal layer,
• wherein the spin orbital torque wiring is constituted of a non-magnetic material composed of elements of two or more kinds and a compositional proportion of the non-magnetic material has a non-uniform distribution between a first surface joined to the first ferromagnetic metal layer and a second surface located on a side opposite to the first surface,
• the compositional proportion is different between the first surface and the second surface, and
• the compositional proportion has a distribution in a direction other than the direction perpendicular to the plane of the first ferromagnetic metal layer.