Kentaro Nagai | Researchain

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IEEE Transactions on Magnetics | 2004

Electrical performance and reliability of tunnel magnetoresistance heads for 100-Gb/in/sup 2/ application

Tetsuya Kuwashima; Kazumasa Fukuda; Hiroshi Kiyono; Kazuki Sato; Takeo Kagami; S. Saruki; Takumi Uesugi; Noriaki Kasahara; Naoki Ohta; Kentaro Nagai; Nozomu Hachisuka; Norio Takahashi; Masamu Naoe; Satoshi Miura; Kazuhiro Barada; Takayasu Kanaya; Kenji Inage; Atsuo Kobayashi

Tunnel magnetoresistance (TuMR) heads are attractive candidates for future high-density recording. To achieve the high areal density, it is necessary for TuMR heads to get lower resistance and higher delta R/R film. A low resistance and high delta R/R tunneling junction film has been developed and used for this study. The resistance area product and delta R/R are 3 /spl Omega//spl middot//spl mu/m/sup 2/ and 18%, respectively. Reliability that includes lifetime was also studied. We have found TuMR heads can be a promising candidate for 100 Gb/in/sup 2/ application.

IEEE Transactions on Magnetics | 2002

Fabrication and electrical properties of lapped type of TMR heads for /spl sim/50 Gb/in/sup 2/ and beyond

Satoru Araki; Kazuki Sato; Takeo Kagami; S. Saruki; Takumi Uesugi; Noriaki Kasahara; Tetsuya Kuwashima; Naoki Ohta; Jijun Sun; Kentaro Nagai; Shuxiang Li; Nozomu Hachisuka; Hitoshi Hatate; Tsuneo Kagotani; Norio Takahashi; Kunihiro Ueda; Mikio Matsuzaki

Archive | 2002