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Electronic phase diagram of La0.54Sm0.11Ca0.35CuxMn1-xO3 manganites

N. CORNEI1, M.-L. CRAUS2,3,* , M. LOZOVAN3, O. MENTRÉ4

Affiliation

  1. Department of Chemistry, “Al.I.Cuza” University, Iasi, Romania
  2. Institute of Research and Development for Technical Physics, Iasi, Romania
  3. Joint Institute of Nuclear Research, Dubna, Russia
  4. UCCS, Equipe de Chimie du Solide, ENSCL, Lille, France

Abstract

The Alk1-xRexMnO3 manganites, where Alk = Sr, Ca, Ba and Re = rare earth, are very well known as magnetoresistive materials near room temperature. The substitution of Mn with other transition cations produces a change of Mn-O-Mn interactions, followed by corresponding change in the electronic phase diagram. The samples with nominal composition La0.54Sm0.11Ca0.35Mn1-xCuxO3 (LSCMCO) were prepared as bulk by sol-gel method. We have discussed the dependence of the transition from the metal to insulator behavior and the modification of FM/AFM concentrations for doped with Cu La0.54Sm0.11Ca0.35MnO3 (LSCMCO) manganites..

Keywords

magnetoresistance, manganites, crystalline/magnetic structure.

Submitted at: April 7, 2010
Accepted at: April 26, 2010

Citation

N. CORNEI, M.-L. CRAUS, M. LOZOVAN, O. MENTRÉ, Electronic phase diagram of La0.54Sm0.11Ca0.35CuxMn1-xO3 manganites, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 4, pp. 872-875 (2010)