%0 Journal Article %A S Jin %A T.H Tiefel %A M McCormack %A H.M O'Bryan %A L.H Chen %A Ramamoorthy Ramesh %A D Schurig %B Applied Physics Letters %D 1995 %G eng %P 557 %R 10.1063/1.115168 %T Thickness dependence of magnetoresistance in La-Ca-Mn-O epitaxial films %V 67 %X {Colossal magnetoresistance in excess of 106% has been obtained (at 110 K