SPIN TRANSPORT SENSOR

摘要

The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.

主权项

1. A magnetoresistive (MR) sensor comprising:
a synthetic antiferromagnet (SAF) that extends to an air bearing surface (ABS) of the MR sensor and provides a current path for a spin-polarized current through an ABS-region of a spin conductor layer.