Magnetic recording device and magnetic head

A magnetic head, comprising a magnetic pole, a first shield, a stacked body provided between the magnetic pole and the first shield, a first terminal electrically connected to the magnetic pole, and a second terminal electrically connected to the first shield,

• the stacked body including
• a first magnetic layer,
• a first conductive layer provided between the first shield and the first magnetic layer, the first conductive layer including a first element including at least one selected from the group consisting of Cu, Ag, Al, Cr, and Au,
• a second conductive layer provided between the magnetic pole and the first magnetic layer, the second conductive layer including a second element including at least one selected from the group consisting of Ta, Pt, W, Mo, Ir, Ru, Tb, Rh, and Pd,
• a second magnetic layer provided between the first magnetic layer and the second conductive layer,
• a third magnetic layer provided between the first magnetic layer and the second magnetic layer,
• a third conductive layer provided between the first magnetic layer and the third magnetic layer, the third conductive layer including a third element including at least one selected from the group consisting of Ta, Pt, W, Mo, Ir, Ru, Tb, Rh, and Pd, and
• a fourth conductive layer provided between the third magnetic layer and the second magnetic layer, the fourth conductive layer including a fourth element including at least one selected from the group consisting of Cu, Au, Ag, Al, Cr, Ta, Pt, W, Mo, Ir, Ru, Tb, Rh, and Pd.

A magnetic head, comprising a magnetic pole, a first shield, a stacked body provided between the magnetic pole and the first shield, a first terminal electrically connected to the magnetic pole, and a second terminal electrically connected to the first shield,

• the stacked body including
• a first magnetic layer,
• a first conductive layer provided between the magnetic pole and the first magnetic layer, the first conductive layer including a first element including at least one selected from the group consisting of Cu, Ag, Al, Cr, and Au,
• a second conductive layer provided between the first shield and the first magnetic layer, the second conductive layer including a second element including at least one selected from the group consisting of Ta, Pt, W, Mo, Ir, Cr, Tb, Rh, and Pd,
• a second magnetic layer provided between the first magnetic layer and the second conductive layer,
• a third magnetic layer provided between the first magnetic layer and the second magnetic layer,
• a third conductive layer provided between the first magnetic layer and the third magnetic layer, the third conductive layer including a third element including at least one selected from the group consisting of Ta, Pt, W, Mo, Ir, Cr, Tb, Rh, and Pd, and
• a fourth conductive layer provided between the third magnetic layer and the second magnetic layer, the fourth conductive layer including a fourth element including at least one selected from the group consisting of Cu, Au, Ag, Al, Cr, Ta, Pt, W, Mo, Ir, Ru, Tb, Rh, and Pd.