摘要:
An apparatus comprises a waveguide, an optical transducer for coupling electromagnetic radiation from the waveguide to a point adjacent to an air bearing surface to heat a portion of a storage medium, and a first wire positioned adjacent to the air bearing surface, wherein current in the wire produces a magnetic field in the heated portion of the storage medium.
摘要:
An apparatus includes a write pole, a waveguide adjacent to the write pole, the waveguide having a truncated end, and a blocking layer positioned adjacent the truncated end and extending from one side of the waveguide across a portion of an aperture at the truncated end. The waveguide can be a solid immersion mirror or a channel waveguide.
摘要:
An apparatus includes a write pole, a waveguide adjacent to the write pole, the waveguide having a truncated end, and a blocking layer positioned adjacent the truncated end and extending from one side of the waveguide across a portion of an aperture at the truncated end. The waveguide can be a solid immersion minor or a channel waveguide.
摘要:
An apparatus comprises a ferromagnetic free layer having a first magnetic moment and having a magnetization that rotates in response to an external magnetic field, a first ferromagnetic reference layer positioned adjacent to a first side of the ferromagnetic free layer and having a second magnetic moment that is greater than the first magnetic moment of the ferromagnetic free layer, a second ferromagnetic reference layer positioned adjacent to a second side of the ferromagnetic free layer and having a third magnetic moment that is greater than the first magnetic moment of the ferromagnetic free layer, a first non-magnetic spacer layer positioned between the ferromagnetic free layer and the first ferromagnetic reference layer, a second non-magnetic spacer layer positioned between the ferromagnetic free layer and the second ferromagnetic reference layer, and a source of magnetic field for biasing the first and second ferromagnetic reference layers.
摘要:
An apparatus includes: a first layer having a near field transducer positioned in a waveguide cladding; a second layer having a magnetic pole piece; a third layer including a solid immersion mirror; a first lapping guide positioned in the first layer; a second lapping guide positioned in the second layer; and a third lapping guide positioned in the third layer.
摘要:
A method includes: fabricating a wafer having a plurality of layers, each including a feature of interest and a lapping guide positioned at a known location relative to the feature of interest, wherein the feature of interest and the lapping guide cross a common plane; lapping the wafer to the common plane to expose portions of the lapping guides; and measuring dimensions of the lapping guides and an offset of the lapping guides with respect to each other. An apparatus constructed using the method is also included.
摘要:
An apparatus includes a magnetically biased multilayer structure having a reference layer and a free layer separated by a spacer layer; a DC current source connected to the multilayer structure; an AC current source connected to the multilayer structure; and a phase detector for measuring a phase difference between an AC current and a voltage across the multilayer structure. A method performed by the apparatus is also provided.
摘要:
An apparatus includes a magnetically biased multilayer structure having a reference layer and a free layer separated by a spacer layer; a DC current source connected to the multilayer structure; an AC current source connected to the multilayer structure; and a phase detector for measuring a phase difference between an AC current and a voltage across the multilayer structure. A method performed by the apparatus is also provided.