Magnetic write head for providing spin-torque-assisted write field enhancement

Disclosed herein are magnetic write heads for providing spin-torque-assisted write field enhancement, and hard disk drives comprising such magnetic write heads. Within the write gap, each magnetic write head comprises a main pole, a trailing shield, a spacer disposed between the main pole and the tr...

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Bibliographische Detailangaben
Hauptverfasser: Hoshiya, Hiroyuki, Goncharov, Alexander, Olson, James Terrence, Shiimoto, Masato, Sugiyama, Mikito
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Disclosed herein are magnetic write heads for providing spin-torque-assisted write field enhancement, and hard disk drives comprising such magnetic write heads. Within the write gap, each magnetic write head comprises a main pole, a trailing shield, a spacer disposed between the main pole and the trailing shield, a non-magnetic layer disposed between the main pole and the trailing shield, and a magnetic DC-field-generation (DFG) layer adjacent to the spacer and disposed between the spacer and the non-magnetic layer. In some embodiments, the DFG layer is the only magnetic layer within the write gap that is not adjacent to the main pole or the trailing shield.