%0 Journal Article %A M McCormack %A S Jin %A T.H Tiefel %A R.M Fleming %A J.M Phillips %A Ramamoorthy Ramesh %B Applied Physics Letters %D 1994 %G eng %P 3045-3047 %R 10.1063/1.111372 %T Very large magnetoresistance in perovskite-like La-Ca-Mn-O thin films %V 64 %X {Colossal magnetoresistance with more than a thousandfold change in resistivity (ΔR/RH=127 000% at 77 K