Method of manufacturing a spin valve type thin film magnetic element and the thin-film magnetic head and a floating-type magnetic head and spin-valve thin-film magnetic element

摘要

PROBLEM TO BE SOLVED: To provide a spin valve type thin film magnetic element capable of reducing its asymmetry.;SOLUTION: The spin valve type thin film magnetic element 11 is characterized in the following. A first and a second fixed magnetic layers 21 and 51 are disposed on the both sides in a direction of the thickness of a free magnetic layer 41 which consists of a first and a second ferromagnetic free layers 42 and 43 and is wholly in a ferrimagnetic state. The first fixed magnetic layer 21 consists of a first and a second ferromagnetic pinned layers 22 and 23 and is wholly in the ferrimagnetic state. The second fixed magnetic layer 51 consists of a third, a fourth and a fifth ferromagnetic pinned layers 52, 53 and 54 and is wholly in the ferrimagnetic state. And the magnetization direction of the second ferromagnetic pinned layer 23 adjacent to the free magnetic layer 41 and the magnetization direction of the third ferromagnetic pinned layer 52 adjacent to the free magnetic layer 41 are anti-parallel to each other.;COPYRIGHT: (C)2001,JPO