TY - JOUR
T1 - 10 Gbit/in.2 longitudinal media on a glass substrate (invited)
AU - Li, Jinshan
AU - Mirzamaani, Mohammad
AU - Bian, Xiaoping
AU - Doerner, Mary
AU - Duan, Shanlin
AU - Tang, Kai
AU - Toney, Michael
AU - Arnoldussen, Tom
AU - Madison, Michael
PY - 1999/4/15
Y1 - 1999/4/15
N2 - This article reports on the properties of the media prepared on glass substrates which were used in IBM's 10 Gbit/in.2 demonstration. In order to support a linear density of 315 kbpi and a track density of 33 ktpi, the remanant coercivity H., and remanant moment thickness product Mrt of the magnetic layer were 3450 Oe and 0.37 memu/cm2, respectively. The media used a NiAl seed layer, a CrV underlayer, a Co alloy magnetic layer, and a carbon overcoat protection layer. The magnetic film had a grain size of 12 nm as observed by transmission electron microscopy. The preferred orientation (PO) of the magnetic layer was (1010). This PO enables one to sustain high coercivities at low values of Mrt. It is observed that the c-axis in-plane texture of the magnetic layer is critical to achieve a low noise medium. Using a focused-ion-beam (FIB) trimmed giant magnetoresistance head and conventional partial response maximum likelihood channel, the on-track-error rates were measured at the 10-10 level.
AB - This article reports on the properties of the media prepared on glass substrates which were used in IBM's 10 Gbit/in.2 demonstration. In order to support a linear density of 315 kbpi and a track density of 33 ktpi, the remanant coercivity H., and remanant moment thickness product Mrt of the magnetic layer were 3450 Oe and 0.37 memu/cm2, respectively. The media used a NiAl seed layer, a CrV underlayer, a Co alloy magnetic layer, and a carbon overcoat protection layer. The magnetic film had a grain size of 12 nm as observed by transmission electron microscopy. The preferred orientation (PO) of the magnetic layer was (1010). This PO enables one to sustain high coercivities at low values of Mrt. It is observed that the c-axis in-plane texture of the magnetic layer is critical to achieve a low noise medium. Using a focused-ion-beam (FIB) trimmed giant magnetoresistance head and conventional partial response maximum likelihood channel, the on-track-error rates were measured at the 10-10 level.
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000079850700004
UR - https://www.scopus.com/pages/publications/0001125553
U2 - 10.1063/1.370345
DO - 10.1063/1.370345
M3 - Conference article published in journal
SN - 0021-8979
VL - 85
SP - 4286
EP - 4291
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 8 II A
T2 - Proceedings of the 43rd Annual Conference on Magnetism and Magnetic Materials
Y2 - 9 November 1998 through 12 November 1998
ER -