METALLIC THIN FILM MAGNETIC DISKS FOR CONTACT RECORDING

FePt:SiO2 granular thin film for high density magnetic recording

Magnetic Thin Film Characterization

An improvement on the fabrication of magnetic thin films is currently on a level of intense research as these films are of great interest in the device industry. Some of these thin films posses high permeability and ferromagnetic resonance (FMR) frequency in the GHz range which are suitable for electromagnetic use. Methods for fabricating these films include sputtering, pulse laser deposition (...

Effects of stacking faults on magnetic viscosity in thin film magnetic recording media

There is much interest in crystallographic defects in thin film magnetic recording media and their role in influencing recording performance such as media noise and thermal loss. In this article we report a correlation between the magnetic viscosity in CoPtCr thin film media, which is the origin of thermal loss effects, and the concentration of local fcc-like regions. The concentration of these...

Evaluation of Nilfs2 for Shingled Magnetic Recording (SMR) Disks

The nature of Shingled Magnetic Recording (SMR) disks makes log structured file systems suitable for such disks. Nilfs2 is a promising log structured file system and is available in the Linux kernel source as an experimental file system. Nilfs2 is actively maintained and stable, providing a good platform for functional and performance evaluation of SMR disks. The Linux Test Project (LTP) test-s...

CrPt3 thin film media for perpendicular or magneto-optical recording

The magnetic properties of CrPt3 L12 ferrimagnetic thin films have been studied. Films were produced by sputtering multilayers of Cr and Pt onto silicon nitride coated silicon substrates. The as-deposited films are nonmagnetic. An anneal at ;800 °C results in ferrimagnetic behavior with a perpendicular easy-axis. X-ray diffraction and transmission electron microscopy ~TEM! measurements show tha...