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Synthesis, structural analysis and magnetic properties of Sc-doped Nd0.8Sr0.2Mn1-xScxO3 manganites

N. CORNEI1, C. MITA1, O. MENTRE2, F. ABRAHAM3, M.-L. CRAUS3,4,*

Affiliation

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

Abstract

A new type of manganites (Nd0.8Sr0.2Mn1-xScxO3) were obtained by sol-gel method. Chemical composition was obtained by means of EDX method. The thermogravimetric analysis put in evidence two changes in DTA and TG curves, which was attributed to loss of the oxygen. XRD analysis was performed with a Huber diffractometer at room temperature, data being handled using the Rietveld refinement method. The samples contain only an orthorhombic (Pnma) phase. The magnetic measurements were performed from 4 to 350 K with a Maglab EXA9T magnetometer. A decrease of the Curie temperature with the increase of Sc concentration in the samples was observed..

Keywords

Manganites, X-ray diffraction, Magnetic properties, Magnetoresistance.

Submitted at: Sept. 9, 2008
Accepted at: Dec. 10, 2008

Citation

N. CORNEI, C. MITA, O. MENTRE, F. ABRAHAM, M.-L. CRAUS, Synthesis, structural analysis and magnetic properties of Sc-doped Nd0.8Sr0.2Mn1-xScxO3 manganites, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 12, pp. 3300-3304 (2008)