MAGNETORESISTANCE EFFECT DEVICE AND MAGNETORESISTANCE EFFECT HEAD COMPRISING THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS

摘要

A so-called CPP-GMR device comprises a nonmagnetic thin film the major component of which is a metal having a specific resistance of 4 mu OMEGA •cm to 200 mu OMEGA • cm. The resistance does not become too high even if the device area is limited. Therefore a large output is produced even if the magnetic gap is narrow.