Soft magnetic thin film and magnetic recording head

A magnetic recording head,

• comprising:
• a lower magnetic pole;
• an upper magnetic pole being formed above said lower magnetic pole;
• an insulating layer being formed between said lower magnetic pole and said upper magnetic pole;
• a back gap section being formed at a rear end, said back gap section contacting said lower magnetic pole and said upper magnetic pole;
• a magnetic gap section being formed at a front end so as to face a surface of a recording medium;
• a coil being wound on said back gap section a plurality of times;
• and
• a soft magnetic thin film, which is formed by electrolytic plating, being formed in said upper magnetic pole and close to said magnetic gap section,
• wherein said soft magnetic film is made of FeCo, whose composition is indicated as FexCo1-x (60≦x≦75 wt %),
• the FeCo film has a bcc crystal structure, and
• the crystal of the FeCo film is oriented to a crystal face of (110).

A single magnetic pole head for vertical magnetic recording,

• comprising:
• a main magnetic pole;
• a return yoke;
• an insulating layer being formed between said main magnetic pole and said return yoke;
• a back gap section being formed at a rear end, said back gap section contacting said main magnetic pole and said return yoke;
• a nonmagnetic electric conductive layer being formed on both sides of a front end of said main magnetic pole, which faces a surface of a recording medium;
• and
• a trailing shield being formed at a front end of said return yoke, which faces the surface of the recording medium,
• wherein at least one of said main magnetic pole and said trailing shield is a soft magnetic thin film, which is formed, by electrolytic plating, on said nonmagnetic electric conductive layer,
• the soft magnetic film is made of FeCo, whose composition is indicated as FexCo1-x (60≦x≦75 wt %),
• the FeCo film has a bcc crystal structure, and
• the crystal of the FeCo film is oriented to a crystal face of (110).