Colossal enhancement of magnetoresistance in La$_{0.67}$Sr$_{0.33}$MnO$_{3}$/Pr$_{0.67}$Ca$_{0.33}$MnO$_{3}$ multilayers: Reproducing the phase separation scenario

Soumik Mukhopadhyay; I. Das

doi:doi:10.1209/0295-5075/83/27003

EPL, 83 (2008) 27003
DOI: 10.1209/0295-5075/83/27003

Colossal enhancement of magnetoresistance in La_0.67Sr_0.33MnO₃/Pr_0.67Ca_0.33MnO₃ 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

soumik.mukhopadhyay@saha.ac.in

received 12 February 2008; accepted in final form 27 May 2008; published July 2008
published online 23 June 2008

Abstract
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.

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

Colossal enhancement of magnetoresistance in La_0.67Sr_0.33MnO₃/Pr_0.67Ca_0.33MnO₃ multilayers: Reproducing the phase separation scenario