Patent ID: 6594120
Filing Date: 2003-07-15
Classification: B82Y,H01L,Y10S,Y10T

Abstract:
A magnetoresistive element comprising:a layered-perovskite oxide having a composition expressed by a formula L2(A1âˆ’zRz)2Anâˆ’1MnO3nâˆ’3+x and including a (L-O)2 layer in its crystalline structure; a pair of ferromagnetic bodies formed in contact with the layered-perovskite oxide so as to sandwich the oxide, at least one of the pair of ferromagnetic bodies being made of a perovskite oxide; and an oxide electrode provided in contact with the ferromagnetic body made of a perovskite oxide, where: A represents at least one alkaline earth element selected from the group consisting of Ca, Sr, and Ba; L represents at least one element selected from the group consisting of Bi, Tl, and Pb; M represents at least one element selected from the group consisting of Ti, V, Cu, Ru, Ni, Mn, Co, Fe, and Cr; R represents a rare earth element; n is 1, 2, or 3; and x and z are numerical values satisfying âˆ’1&lE;x&lE;1, and 0&lE;z&lE;1, respectively.