Non-localized spin valve multi-free-layer reader hybridized with spin orbit torque layers

A magnetic recording head, comprising:

• a read head, the read head comprising:
• a first shield;
• a first non-magnetic layer disposed over the first shield;
• a first sensor disposed over the first shield at a media facing surface (MFS), the first sensor comprising a first free layer and a second free layer, wherein the first non-magnetic layer is disposed between the first free layer and the second free layer;
• a first spin generator disposed over the first shield and recessed from the MFS, the first spin generator being spaced from the first sensor, wherein the first spin generator comprises a first spin orbit torque (SOT) layer and a second SOT layer;
• a second shield disposed over the first sensor, the first spin generator, and the first non-magnetic layer;
• a third shield disposed over the second shield;
• a second non-magnetic layer disposed between the second shield and the third shield;
• a second sensor disposed between the second shield and the third shield at the MFS, the second sensor comprising a third free layer and a fourth free layer, wherein the second non-magnetic layer is disposed between the third free layer and the fourth free layer;
• and
• a second spin generator disposed between the second shield and the third shield and recessed from the MFS, the second spin generator being spaced from the second sensor, wherein the second spin generator comprises:
• a third SOT layer disposed between the second shield and the second non-magnetic layer;
• and
• a fourth SOT layer disposed between the second non-magnetic layer and the third shield.

A magnetic recording head, comprising:

• a read head, the read head comprising:
• a first shield;
• a second shield;
• a first non-magnetic layer disposed between the first shield and the second shield;
• a first sensor disposed between the first shield and the second shield at a media facing surface (MFS), the first sensor comprising a first free layer and a second free layer;
• a first spin generator disposed between the first shield and the second shield and recessed from the MFS, the first spin generator being spaced from the first sensor, wherein the first spin generator comprises:
• a first seed layer disposed over the first shield;
• a first spin orbit torque (SOT) layer disposed between the first shield and the first non-magnetic layer;
• a first cap layer;
• a second seed layer disposed over the first non-magnetic layer;
• a second SOT layer disposed between the first non-magnetic layer and the second shield;
• and
• a second cap layer disposed over the second SOT layer;
• a third shield disposed over the second shield;
• a second non-magnetic layer disposed between the second shield and the third shield;
• a second sensor disposed between the second shield and the third shield at the MFS, the second sensor comprising a third free layer and a fourth free layer;
• and
• a second spin generator disposed between the second shield and the third shield and recessed from the MFS, the second spin generator being spaced from the second sensor, wherein the second spin generator comprises:
• a third seed layer disposed over the second shield;
• a third SOT layer disposed between the second shield and the second non-magnetic layer;
• a third cap layer;
• a fourth seed layer disposed over the second non-magnetic layer;
• a fourth SOT layer disposed between the second non-magnetic layer and the third shield;
• and
• a fourth cap layer disposed over the fourth SOT layer.