Brinks Hofer Gilson & Lione
Magnetic sensing element including free magnetic layer or pinned magnetic layer having two sublayers that are composed of different CoMn-based heusler alloys
A magnetic sensing element is provided. A free magnetic layer has a three-layer structure including CoMnα sublayers each composed of a metal compound represented by the formula: Co2xMnxαy. The α contains an element β and Sb, the element β being at least one element selected from Ge, Ga, In, Si, Pb, Zn, Sn, and Al. The concentration x and the concentration y are each represented in terms of atomic percent and satisfy the equation: 3x+y=100 atomic percent. One of the CoMnα sublayers is in contact with a lower nonmagnetic material layer. The other CoMnα sublayer is in contact with upper nonmagnetic material layer. As a result, it is possible to achieve a high ΔRA and a lower interlayer coupling magnetic field Hin compared with the known art.
TDK Corporation
B Y G Y
B82Y Y10T G01R Y10T
inventional additional inventional additional
Yosuke Kazumasa Masahiko Masamichi Naoya
Ide Nishimura Ishizone Saito Hasegawa