公开(公告)号：JPH1091923A

公开(公告)日：1998-04-10

申请号：JP21464497

申请日：1997-08-08

Applicant: IBM

Inventor： GILL HARDAYAL SINGH ,  GURNEY BRUCE A ,  SMYTH JOSEPH FRANCIS ,  SPERIOSU VIRGIL SIMON ,  WERNER DOUGLAS JOHNSON

IPC: G11B5/00 ,  G11B5/012 ,  G11B5/39

Abstract: PROBLEM TO BE SOLVED: To provide an orthogonal spin valve reading head having a spin valve sensor. SOLUTION: Spin valve sensors are arranged between a first and a second shield layers S1, S2 asymmetrically, when a detecting current is made to flow, a restriction magnetic fields by an anti-ferroelectric layer 74, a pin holding layer 72 and a spacer layer 76 partially or completely canceled by an induction magnetic field generated by a current induced in both shield layers when a detecting current is made to flow. The distance between a sensor and the second shield layer S2 is enlarged by providing an intermediate gap layer MG between spin valve sensors and the second shield layer S2.