Patent ID: 8879213

Claim:
A magneto-resistance effect element comprising: a first shield; a second shield; a first side shield layer including: a first magnetic layer provided between the first shield and the second shield; a first nonmagnetic intermediate layer provided between the first magnetic layer and the second shield; and a second magnetic layer provided between the first nonmagnetic intermediate layer and the second shield and antiferromagnetically coupled to the first magnetic layer; a second side shield layer including: a third magnetic layer provided between the first shield and the second shield and away from the first side shield layer in a first direction intersecting with a stacking direction from the first shield toward the second shield; a second nonmagnetic intermediate layer provided between the third magnetic layer and the second shield and away from the first side shield layer in the first direction; and a fourth magnetic layer provided between the second nonmagnetic intermediate layer and the second shield and away from the first side shield layer in the first direction and antiferromagnetically coupled to the third magnetic layer; a stacked body including: a first ferromagnetic layer provided between the first side shield layer and the second side shield layer between the first shield and the second shield; a third nonmagnetic intermediate layer provided between the first ferromagnetic layer and the second shield; and a second ferromagnetic layer provided between the third nonmagnetic intermediate layer and the second shield; a first shield guide layer including a fifth magnetic layer provided between the first side shield layer and the stacked body; and a second shield guide layer including a sixth magnetic layer provided between the second side shield layer and the stacked body, a distance between the first side shield layer and the first shield guide layer being shorter than a distance between the stacked body and the first shield guide layer, a distance between the second side shield layer and the second shield guide layer being shorter than a distance between the stacked body and the second shield guide layer.