Patent ID: 9312477
Filing Date: 2016-04-12
CPC Classification: H01L

Claim Text:
1. A magnetroresistive element comprising: a first magnetic layer; a second magnetic layer; and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, wherein the first magnetic layer has a structure in which a first magnetic material film is provided in contact with the nonmagnetic layer, a nonmagnetic material film is provided in contact with the first magnetic material film, a second magnetic material film is provided in contact with the nonmagnetic material film, and a third magnetic material film is provided in contact with the second magnetic material film, the second magnetic material film has a Co concentration higher than that of the first magnetic material film, and the second magnetic material film is in direct contact with the third magnetic material film, and the first magnetic material film has a magnetization direction parallel to that of the second magnetic material film.