简介：StudiesontheZnO/La0.5Pr0.2Sr0.3MnO3(LPSMO)/SrNb0.002Ti0.998O3(SNTO)heterostructurehavingvaryingthicknessofp-typeLPSMO(100nm—LP1)and(200nm—LP2)manganitearecarriedout.ZnO/LPSMO(n—p)andLPSMO/SNTO(p—n)junctionsofboththeheterostructuresexhibitgoodrectifyingbehaviorinawiderangeoftemperatureandappliedfield.Forwardandreversebiascharacteristicsofboththejunctionsofheterostructuresshowoppositebehavior.Theobservationofnegativemagnetoresistance(MR)at5KandpositiveMRat300K,inboththeheterostructures,hasbeenexplainedinthecontextofinterfaceregioneffectsandfillingofenergybandsofLPSMOmanganite.Further,athightemperature,theheterostructuresexhibitlargetemperature(46%K-1)andfield(40%T-1)sensitivities.Dependenceoftransport,magnetotransport,I—Vandsensingpropertiesoftheheterostructures,onthetemperature,fieldandfilmthicknesseshavebeendiscussedinthiscommunication.