Magnetic head and magnetic recording device including a stacked body having a first magnetic member and a second magnetic member

A magnetic head, comprising:

• a first magnetic pole;
• a second magnetic pole;
• and
• a stacked body provided between the first magnetic pole and the second magnetic pole,
• the stacked body including
• a first magnetic member,
• a second magnetic member provided between the first magnetic member and the second magnetic pole,
• a first layer provided between the first magnetic member and the second magnetic member, the first layer including Cu, and
• a second layer provided between the second magnetic member and the second magnetic pole, the second layer including Cu,
• the first magnetic member including a plurality of first magnetic regions and a first nonmagnetic region,
• a direction from one of the first magnetic regions toward an other one of the first magnetic regions being along a first direction from the first magnetic pole toward the second magnetic pole,
• the first nonmagnetic region being between the one of the first magnetic regions and the other one of the first magnetic regions,
• the first magnetic regions including a first element, the first element being at least one selected from the group consisting of Fe, Co, and Ni,
• the first nonmagnetic region including a second element, the second element being at least one selected from the group consisting of Mn, Cr, V, Ti, and Sc,
• the first nonmagnetic region not including Cu, or a concentration of Cu included in the first nonmagnetic region being less than a concentration of Cu in the first layer,
• the second magnetic member including at least one selected from the group consisting of Fe, Co, and Ni, and
• a thickness along the first direction of the first magnetic member being less than a thickness along the first direction of the second magnetic member.