Spin-signal enhancement in a lateral spin valve reader

摘要

A lateral spin valve reader that includes a detector structure located proximate to a bearing surface and a spin injection structure located away from the bearing surface. The lateral spin valve reader also includes a channel layer extending from the detector structure to the spin injection structure. An exterior cladding, disposed around the channel layer, suppresses spin-scattering at surfaces of the channel layer.

主权项

1. A multi-sensor reader within a single recording head, the multi-sensor reader comprising:
a top shield; a bottom shield; a plurality of lateral spin valve readers interposed between the top shield and the bottom shield wherein each of the plurality of lateral spin valve readers comprises:
a detector structure located proximate to a bearing surface;a spin injection structure located away from the bearing surface;a channel layer extending from the detector structure to the spin injection structure; andan exterior cladding, disposed around the channel layer, configured to suppress spin-scattering at surfaces of the channel layer; first and second mid shields between a first one of the plurality of lateral spin valve readers and a second one of the plurality of lateral spin valve readers; and an isolation layer between the first mid shield and the second mid shield.