Initial Growth Layer and Magnetic Properties of CoCrPt Perpendicular Media.

Magnetic interactions in CoCrPt-oxide based perpendicular magnetic recording media

Influence of stress on nucleation field of CoCrPt perpendicular media

The influence of stress on the nucleation field was investigated for CoCrPt perpendicular media grown on a Ta/Hf buffer layer. The nucleation field increased to 21.5 kOe ~second quadrant! following postdeposition annealing of a sample at 232 °C in air for 1 h. The residual in-plane stress for the annealed film was tensile, and in-plane x-ray diffraction showed that the a0 lattice parameter incr...

High-Coercivity CoCrPt–Ti Perpendicular Media by In Situ Interdiffusion of CrMn Ultrathin Overlayers

We have investigated the magnetic and structural properties of CoCrPt perpendicular films with respect to in situ interdiffusion of CrMn from top layers. We have observed a coercivity of 5700 Oe in the films with a thin CrMn overlayer, which is greater than two times larger than the similar type of films without a CrMn overlayer. This increment is attributed to the decoupling of grains by diffu...

MgO seed layers for CoCrPt/Cr longitudinal magnetic recording media

Sputter deposited MgO thin films with the B1 crystal structure and ~002! film texture are used as seed layers to improve the texture and magnetic properties of the CoCrPt/Cr magnetic thin films on glass substrates for longitudinal recording. The desired ~002! textured Cr underlayers are usually obtained by sputtering Cr onto heated substrates. However, it is found that the MgO seed layers can i...

Magnetic Layers for Perpendicular Recording Media

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