Patent ID: 7724481
Filing Date: 2010-05-25
Classification: B82Y,G01R,Y10T

Abstract:
1. A magnetic sensing element comprising: a pinned magnetic layer; a free magnetic layer; and a nonmagnetic material layer disposed between the pinned magnetic layer and the free magnetic layer, wherein at least one of the free magnetic layer and the pinned magnetic layer includes a CoMnα alloy, wherein α contains an element β and Sb (where the element β is at least one element selected from Ge, Ga, In, Si, Pb, Zn, Sn, and Al), wherein the CoMnα alloy comprising a metal compound is represented by the following formula: Co wherein the concentration x and the concentration y are each represented in terms of atomic percent and satisfy the equation: 3x+y=100 atomic percent, and the concentration y is in the range of about 24 to about 28 atomic percent.