Abstract
The behaviour of resistivity versus temperature in a series of (LCMO)/(GCMO) multilayers has been studied. The resistivity peak temperature of the multilayers decreases with decreasing thickness of the LCMO layers. Large low-field magnetoresistance (LFMR) of % is obtained at 78.5 K in heterostructure LCMO/GCMO multilayers when a magnetic field is swept within Oe. This result suggests that the interface strain between LCMO and GCMO layers may influence the magnetic transport properties and a suitable film structure could be used to increase the LFMR.
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