Volume 83, Number 2, July 2008
Article Number 27003
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
Published online 23 June 2008
EPL, 83 (2008) 27003
DOI: 10.1209/0295-5075/83/27003

Colossal enhancement of magnetoresistance in La0.67Sr0.33MnO3/Pr0.67Ca0.33MnO3 multilayers: Reproducing the phase separation scenario

Soumik 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-charge$\hbox{--} $ordered 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.

© EPLA 2008