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Structure and magnetic properties of multiferroic YCr 1-xFe xO3 (0≤x≤1)♣

S. KOVACHEV1,* , D. KOVACHEVA2, S. ALEKSOVSKA3, E. SVAB4, K. KREZHOV1

Affiliation

  1. nstitute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
  2. Institute of General and Inorganic Chemistry, Bulgarian Academy of Science, "Acad. Georgi Bonchev" str. bld. 11, 1113 Sofia, Bulgaria
  3. Institute of Chemistry, Faculty of Natural Sciences and Mathematics, University "Sts. Cyril and Methodius", 1000 Skopje, Republic of Macedonia
  4. Research Institute for Solid State Physics and Optics, H-1525 Budapest, POB 49, Hungary

Abstract

Samples from the mixed oxide system YCr 1-xFexO 3 (0≤x≤1) were prepared by self-propagation combustion techniques and studied by neutron and X-ray diffraction at 290 K and by magnetic measurements in the range 2–800 K. The average observed metal-oxygen distances based on refinements in the space group Pnma are in agreement with the expected distances from the valence bond approach. The non-collinear spin arrangement (mode Γ4) of YFeO 3 and YCrO 3 is preserved for the rest (x ≥0.33) of the compounds magnetic at 290 K. The findings indicate that YCrO 3 and YFeO 3 form a solid solution with strongly frustrated magnetic interactions..

Keywords

Multiferroics, Ferroelectricity, Diffraction, Perovskite, Solid solution.

Submitted at: Nov. 5, 2008
Accepted at: Oct. 3, 2009

Citation

S. KOVACHEV, D. KOVACHEVA, S. ALEKSOVSKA, E. SVAB, K. KREZHOV, Structure and magnetic properties of multiferroic YCr 1-xFe xO3 (0≤x≤1)♣, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 10, pp. 1549-1552 (2009)