Title of article :
R3Mn1.5CuV0.5O9 (R = Y, Ho, Er, Tm, Yb and Lu) and Lu3Mn3−3xCu2xVxO9: New noncentrosymmetric oxides related to YMnO3
Author/Authors :
Surendran، نويسنده , , K.P. and Mani، نويسنده , , Rohini and Gopalakrishnan، نويسنده , , J. and Ramanujachary، نويسنده , , K.V. and Lofland، نويسنده , , S.E. and Green، نويسنده , , William L.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
We report formation of new noncentrosymmetric oxides of the formula, R3Mn1.5CuV0.5O9 for R = Y, Ho, Er, Tm, Yb and Lu, possessing the hexagonal RMnO3 (space group P63cm) structure. These oxides could be regarded as the x = 0.5 members of a general series R3Mn3−3xCu2xVxO9. Investigation of the Lu–Mn–Cu–V–O system reveals the existence of isostructural solid solution series, Lu3Mn3−3xCu2xVxO9 for 0 < x ≤ 0.75. Magnetic and dielectric properties of the oxides are consistent with a random distribution of Mn3+, Cu2+ and V5+ atoms that preserve the noncentrosymmetric RMnO3 structure.
Keywords :
C. X-ray diffraction , B. Chemical synthesis , A. Oxides , D. Magnetic properties
Journal title :
Materials Research Bulletin
Journal title :
Materials Research Bulletin
