Patent ID: 6765768
Filing Date: 2004-07-20
Classification: B82Y,G11B

Abstract:
A thin-film magnetic head comprising:a magnetic detecting element; gap layers disposed on both surfaces of the magnetic detecting element; and shield layers, each disposed on the corresponding gap layer and containing, wherein at least one of the shield layers has a first shield sub-layer and a second shield sub-layer, the second shield sub-layer is disposed more proximate to the corresponding gap layer than the first shield sub-layer and has a higher specific resistance than that of the first shield sub-layer, and wherein the second shield sub-layer comprises a magnetic material represented by FeaMbOc, wherein M represents at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Cr, Mo, Si, P, C, W, B, Al, Ga, Ge, and rare earth elements, and a, b, and c represent atomic ratios that satisfy the relationships of 50&lE;a&lE;70, 5&lE;b&lE;30, 10&lE;c&lE;30, and a+b+c=100.