Electrical performance and reliability of tunnel magnetoresistance heads for 100-Gb/in2 application

被引:13
作者
Kuwashima, T [1 ]
Fukuda, K [1 ]
Kiyono, H [1 ]
Sato, K [1 ]
Kagami, T [1 ]
Saruki, S [1 ]
Uesugi, T [1 ]
Kasahara, N [1 ]
Ohta, N [1 ]
Nagai, K [1 ]
Hachisuka, N [1 ]
Takahashi, N [1 ]
Naoe, M [1 ]
Miura, S [1 ]
Barada, K [1 ]
Kanaya, T [1 ]
Inage, K [1 ]
Kobayashi, A [1 ]
机构
[1] TDK Corp, Head Business Grp, Nagano 3858555, Japan
关键词
current-perpendicular-to-plane (CPP) geometry; electric properties; magnetic tunnel junction; 1/f noise; reliability; shot noise; tunnel giant magnetoresistance (GMR); tunnel magnetoresistance (TuMR) head;
D O I
10.1109/TMAG.2003.821203
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 Omega - mum(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(2) application.
引用
收藏
页码:176 / 181
页数:6
相关论文
共 11 条
[1]   Fabrication and electric properties of lapped type of TMR heads for ∼50 Gb/in2 and beyond [J].
Araki, S ;
Sato, K ;
Kagami, T ;
Saruki, S ;
Uesugi, T ;
Kasahara, N ;
Kuwashima, T ;
Ohta, N ;
Sun, J ;
Nagai, K ;
Li, S ;
Hachisuka, N ;
Hatate, H ;
Kagotani, T ;
Takahashi, N ;
Ueda, K ;
Matsuzaki, M .
IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (01) :72-77
[2]   Study of magnetic tunnel junction read sensors [J].
Ho, MK ;
Tsang, CH ;
Fontana, RE ;
Parkin, SS ;
Carey, KJ ;
Pan, T ;
MacDonald, S ;
Arnett, PC ;
Moore, JO .
IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1691-1694
[3]   Read performance of tunneling magnetoresistive heads [J].
Ishihara, K ;
Nakada, M ;
Fukami, E ;
Nagahara, K ;
Honjo, H ;
Ohashi, K .
IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1687-1690
[4]   Intermixing effects in ultrathin barrier magnetic tunneling junctions [J].
Li, Y ;
Wang, SX .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :7950-7952
[5]   LARGE MAGNETORESISTANCE AT ROOM-TEMPERATURE IN FERROMAGNETIC THIN-FILM TUNNEL-JUNCTIONS [J].
MOODERA, JS ;
KINDER, LR ;
WONG, TM ;
MESERVEY, R .
PHYSICAL REVIEW LETTERS, 1995, 74 (16) :3273-3276
[6]   Noise properties of ferromagnetic tunnel junctions [J].
Nowak, ER ;
Merithew, RD ;
Weissman, MB ;
Bloom, I ;
Parkin, SSP .
JOURNAL OF APPLIED PHYSICS, 1998, 84 (11) :6195-6201
[7]   Electrical noise in hysteretic ferromagnet-insulator-ferromagnet tunnel junctions [J].
Nowak, ER ;
Weissman, MB ;
Parkin, SSP .
APPLIED PHYSICS LETTERS, 1999, 74 (04) :600-602
[8]   Frequency response of common lead and shield type magnetic tunneling junction head [J].
Shimazawa, K ;
Sun, JJ ;
Kasahara, N ;
Sato, K ;
Kagami, T ;
Saruki, S ;
Redon, O ;
Fujita, Y ;
Umehara, T ;
Syoji, J ;
Araki, S ;
Matsuzaki, M .
IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1684-1686
[9]  
TANAKA A, 2003, TOPICAL S MAGNETIC S, V128, P77
[10]   Effect of natural oxidation conditions on low resistance spin tunnel junctions [J].
Zhang, ZG ;
Freitas, PP ;
Ramos, AR ;
Barradas, NP ;
Soares, JC .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :8786-8788