Colossal enhancement of magnetoresistance in La0.67Sr0.33MnO3/Pr0.67Ca0.33MnO3 multilayers: Reproducing the phase separation scenarioSoumik Mukhopadhyay and I. Das
ECMP Division, Saha Institute of Nuclear Physics - 1/AF, Bidhannagar, Kolkata 700 064, India
received 12 February 2008; accepted in final form 27 May 2008; published July 2008
published online 23 June 2008
Colossal enhancement of magnetoresistance has been achieved over a broad temperature range which extends up to the room temperature, in ferromagnetic metal-chargeordered insulator manganite multilayers. The artificially created phase coexistence in the multlayers reproduces the characteristic signatures of metastability in the magnetotransport properties commonly observed in electronically phase-separated manganites.
75.47.Lx - Manganites.
73.63.-b - Electronic transport in nanoscale materials and structures.
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