Effect of Dimensionality on the Giant Magnetoresistance of the Manganates: A Study of the (La, Sr)n+1MnnO3n+1Family

An investigation of then= 1, 2, 3 and ∞ members of the (La, Sr) n+1Mn n O3n+1or the (SrO)(La1−x Sr x MnO3) n family has shown the dependence of the I–M transition temperature and the magnitude of magnetoresistance (MR) on dimensionality. MR decreases as dimensionality increases from 2 to 3.