Method of forming a magnetic media

A method of forming a magnetic medium, comprising the acts of:

• depositing an underlayer over a substrate;0
• depositing a magnetic layer over the underlayer, the magnetic layer formed of a magnetic material with magnetic properties which vary based on underlying crystallographic structure;
• photo-lithographically covering magnetically-supporting tracks of the magnetic layer with a mask;
• and
• treating boundaries of the magnetic layer between the magnetically-supporting tracks to render the boundaries magnetically non-responsive.

A method of forming a magnetic medium, comprising the acts of:

• depositing an underlayer over a substrate;
• altering the crystallographic structure in track boundaries of the underlayer as compared to the crystallographic structure in magnetically-supporting tracks of the underlayer;
• and
• depositing a magnetic layer over the underlayer, the magnetic layer formed of a magnetic material with magnetic properties which vary based on underlying crystallographic structure;
• such that tracks of the magnetic layer over the magnetically-supporting tracks are generally magnetically responsive and permanently defined boundaries of the magnetic layer over the track boundaries of the underlayer are relatively magnetically non-responsive.

A method of forming a magnetic medium, comprising the acts of:

• depositing an underlayer over a substrate;
• depositing a magnetic layer over the underlayer;
• altering the crystallographic structure in select locations;
• of the magnetic layer to permanently define servo-bursts on the magnetic medium.

A method of forming a magnetic medium, comprising the acts of:

• depositing an underlayer over a substrate;
• depositing a magnetic layer over the underlayer, the magnetic layer formed of a magnetic material with magnetic properties which vary based on underlying crystallographic structure;
• depositing an overcoat over the magnetic layer;
• and
• after depositing the overcoat, permanently altering the magnetic layer in boundaries of the magnetic layer to be relatively non-magnetic as compared to magnetically-supporting tracks of the magnetic layer.