Title :
Near-field assisted magnetic recording
Author :
Miyanishi, Shintaro ; Iketani, Naoyasu ; Takayama, Kazuhisa ; Innami, Kohsuke ; Suzuki, Ippei ; Kitazawa, Tazuko ; Ogimoto, Yasushi ; Murakami, Yoshiteru ; Kojima, Kunio ; Takahashi, Akira
Author_Institution :
Devices Technol. Res. Labs., Sharp Corp., Nara, Japan
Abstract :
We propose a new hybrid head that generates both the magnetic field and the near field on a nano-sized region for high-density magnetic recording. Utilizing this hybrid head, the narrowest track width of 70 nm is achieved on TbFeCo media, which proves the near-field assisted magnetic recording beyond the diffraction limit of an optical pickup. The hybrid head demonstrated here constitutes a breakthrough toward the areal density of 1 Tb/in2.
Keywords :
iron compounds; magnetic heads; magnetic recording; terbium compounds; 70 nm; TbFeCo; diffraction limit; hybrid head; magnetic field; near-field assisted magnetic recording; optical pickup; surface plasmon; Coercive force; Heat-assisted magnetic recording; Hybrid power systems; Magnetic fields; Magnetic heads; Magnetic recording; Material storage; Optical recording; Plasmons; Wire; Hybrid head; TbFeCo; near-field assisted magnetic recording; surface plasmon;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855562
