MAGNETORESISTIVES ELEMENT UND DIESES VERWENDENDER MAGNETORESISTIVER LESEKOPF, MAGNETISCHES AUFNAHMEGERÄT UND MAGNETORESISTIVER SPEICHER

摘要

The present invention provides a magnetoresistive (MR) element that is excellent in MR ratio and thermal stability and includes at least one magnetic layer including a ferromagnetic material M-X expressed by M_100-aX_a. Here, M is at least one selected from Fe, Co and Ni, X is expressed by X¹_bX²_cX³_d (X¹ is at least one selected from Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt and Au, X² is at least one selected from Al, Sc, Ti, V, Cr, Mn, Ga, Ge, Y, Zr, Nb, Mo, Hf, Ta, W, Re, Zn and lanthanide series elements, and X₃ is at least one selected from Si, B, C, N, O, P and S), and a, b, c and d satisfy 0.05<=a<=60, 0<=b<=60, 0<=c<=30, 0<=d<=20, and a=b+c+d.