| 摘要 |
Magnetic head (1) for use in vertical recording comprising two protective blocks (5, 7) which jointly constitute a contact surface (S), and a magnetic pole (3) in the form of a thin film of a soft magnetic material enclosed between the two protective blocks. The magnetic head also comprises a winding aperture (13) and a coil W. At least one (7) of the two protective blocks is formed from one piece of ferrite having a high magnetostriction, a first portion (7A) consisting of a ferrite having a high magnetic permeability and a second portion (7B) consisting of a ferrite having only a low magnetic permeability.
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