Surface diffusion inhibitor for HAMR NFT

摘要

Embodiments of the present invention generally relate to a HAMR head including a near field transducer having an antenna, a surface diffusion inhibitor layer disposed on a portion of the antenna and an aperture disposed over the surface diffusion inhibitor layer. The surface diffusion inhibitor layer has a greater melting point than the antenna, and the surface diffusion inhibitor layer material is immiscible in the antenna material.

主权项

1. A heat assisted magnetic recording head, comprising:
a near field transducer, wherein the near field transducer comprises:
an antenna having a first melting point;a surface diffusion inhibitor layer disposed on a portion of the antenna, wherein the surface diffusion inhibitor layer has a second melting point that is greater than the first melting point; andan aperture disposed over the surface diffusion inhibitor layer.