Abstract:We experimentally investigate the structural, magnetic and electrical transport properties of La 0.67 Sr 0.33 MnO 3 based magnetic tunnel junctions with a SrSnO 3 barrier. Our results show that despite the large number of defects in the strontium stannate barrier, due to the large lattice mismatch, the observed tunnel magnetoresistance is comparable to tunnel junctions with a better lattice matched STiO 3 barrier, reaching values of up to 350 % at T = 5 K. Further analysis of the current-voltage characteristic… Show more
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