Patent ID: 6330135
Filing Date: 2001-12-11
Classification: G01R,H01F

Abstract:
A magneto-resistance effect element comprising:a <100> substrate of SrTiO.sub.3 that has a surface formed with steps of atomic layer level; anda ferromagnetic oxide thin film epitaxially grown on said substrate;said thin film being formed on the atomic layer level steps having an antiphased domain boundary, and being represented by the formula RE.sub.3-X AE.sub.X Mn.sub.2 O.sub.7,where RE is at least one rare earth element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, AE is at least one alkaline earth metal selected from the group consisting of Mg, Ca, Sr and Ba, and x is 0 to 3.