Author/Authors :
T.، Ando, نويسنده , , T.، Doi, نويسنده , , J.، Koujima, نويسنده , , K.، Nakata, نويسنده , , K.، Shimomai, نويسنده , , M.، Sugiyama, نويسنده , , E.F.، Cromwell, نويسنده ,
Abstract :
Spinel ferrite Co-(gamma)Fe/sub 2/O/sub 3/ films have the advantages of high coercivity, high stability without a protective layer, and low noise performance for magnetic recording layers. Also, exchange-coupled Co-Zr-Nb/Co-Sm underlayers show superior characteristics. The Co-Sm hard magnetic layer pins the domains of the Co-Zr-Nb soft magnetic layer effectively and decreases the noise coming from the latter. By combining the Co-(gamma)Fe/sub 2/O/sub 3/ recording layer and exchange-coupled Co-Zr-Nb/Co-Sm underlayers, the triple-layered perpendicular media show promise for ultrahigh-density perpendicular recording.
Keywords :
Abdominal obesity , Prospective study , waist circumference , Food patterns
