Enhanced low field magnetoresistance (MR) in Nd0.7Sr0.3MnO3(NSMO) has been achieved by using high‐Tcsuperconducting flux focusing devices made of YBa2Cu3O7(YBCO)/NSMO heterostructures. Two kinds of flux focusing schemes, gap, and washer devices, have been used where an applied magnetic field is expelled from patterned YBCO pads and focused onto a bridge of NSMO film. Using such a magnetic lens, at temperatures below 77 K ∼800% enhancement in MR=−(RH−R0)/R0was observed for different samples. This corresponds to more than 10% change in the MR of NSMO in the presence of 200 G. For the maximum MR response in NSMO, the YBCO/NSMO heterostructures were deposited on (100) LaAlO3substrate by pulsed laser depositioninsituso that the peak resistance temperature (Tp) of NSMO was below the superconducting transition temperature (Tc) of YBCO. ©1996 American Institute of Physics.