Thin film magnetic head

A thin film magnetic head including a write element having a film structure comprising:

• a first yoke;
• a first pole tip superimposed exclusively on a front end portion of said first yoke, with a width of said first pole tip being less than a width of said first yoke, and said width of said first pole tip defining a track width;
• a gap layer superimposed exclusively on said first pole tip;
• a second pole tip superimposed exclusively on said gap layer;
• a non-magnetic insulating film superimposed on said first yoke, surrounding said first pole tip, said gap layer and said second pole tip;
• and
• a second yoke having a front end portion superimposed on said second pole tip;
• wherein;
• at least either said first pole tip or said second pole tip is constituted of a material selected from the group consisting of Fe--Co, Fe--M and Fe--Co--M, with said M representing at least one material selected from the group consisting of N, C, B, Si, Al, Ti, Zr, Hf, Mo, Ta and Nb,
• wherein at least either said first yoke or said second yoke is constituted of a material selected from the group consisting of Fe--Co type amorphous, Fe--M--N Fe--M--O, Fe--Co--M--N, Fe--Co--M--O and Fe--Co--N, with said M representing at least one material selected from the group consisting of B, Si, Al, Ti, Zr, Hf, Mo, Ta and Nb.