Spin-valve type magnetoresistive thin film element and its manufacturing method

摘要

The pinned magnetic layer 2 is composed of a track width region 2' and a dead region 2'', the track width region 2' being formed at a spaced apart relation to the bias region 5. Accordingly, magnetization of the track width region 2' is not so strongly affected by the bias region 5, thereby magnetization is fixed along the Y-direction at almost entire region of the track width region 2'. Therefore, the track width region 2' and the free magnetic region are in a crossing relation with each other giving a proper asymmetry in the entire region of the track width region 2'.