Patent ID: 6723449
Filing Date: 2004-04-20
Classification: G11B,Y10T

Abstract:
A magnetic head comprising:a reading head using a magnetoresistive element, and a writing head using a lower magnetic core and an upper magnetic core, wherein at least one core selected from said lower magnetic core and said upper magnetic core includes a first magnetic layer comprising Co, Ni and Fe deposited by a sputtering method and a second magnetic layer comprising Co, Ni and Fe deposited by an electroplating method, and further wherein at least one core selected from said lower magnetic core and said upper core contains Co, Ni and Fe comprising a composition: 40 wt %&lE;Co&lE;70 wt %, 10 wt %&lE;Ni&lE;25 wt %, and 10wt %&lE;Fe&lE;30wt %; and further wherein the peak intensity ratio is: I(200)/I(111)&gE;0.5 and I(110)/I(111)&gE;1 when defining the peak intensities of the face-centered cubic fcc (111) face, fcc (200) face, and the body-centered cubic bcc (110) face in the X-ray diffraction as I(111), I(200) and I(110), respectively.