Crystal Growth of New Strontium Iron Rhodium Oxides: Sr₄Fe_0.73Rh_2.27O₉ and SrFe_0.71Rh_0.29O₃

Author(s)

Judith N. Mwamuka, University of South Carolina - Columbia
William R. Gemmill, University of South Carolina - Columbia
Katharine E. Stitzer, University of South Carolina - Columbia
Mark D. Smith, University of South Carolina - ColumbiaFollow
Hans-Conrad zur Loye, University of South Carolina - ColumbiaFollow

Document Type

Paper

Subject Area(s)

Chemistry

Abstract

Single crystals of two new strontium iron rhodates, SrFe_0.71Rh_0.29O₃ and Sr₄Fe_0.73Rh_2.27O₉, have been grown and structurally characterized. Single crystals of SrFe_0.71Rh_0.29O₃ and Sr₄Fe_0.73Rh_2.27O₉ were grown from potassium carbonate melts. SrFe_0.71Rh_0.29O₃ crystallizes in the cubic perovskite structure, space group Pm_3̄m, with a=3.9027(6) Å. Sr₄Fe_0.73Rh_2.27O₉ crystallizes with trigonal symmetry in the space group P₃₂₁, a=9.6091(2) Å and c=7.9448(2) Å, and is structurally related to the 2H-hexagonal perovskites. Sr₄Fe_0.73Rh_2.27O₉ contains two independent 1-D chains of face-sharing polyhedra with a sequence of two RhO₆ octahedra and one Fe/RhO₆ trigonal prism and strontium cations separating the chains. The growth conditions, structures and magnetic properties of these compounds are discussed.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.jallcom.2004.01.041

Publication Info

Published in Journal of Alloys and Compounds, Volume 377, Issue 1-2, 2004, pages 91-97.

Rights

© Journal of Alloys and Compounds 2004, Elsevier.

APA Citation

Mwamuka, J., Gemmill, W., Stitzer, K., Smith, M., & zur Loye, H.-C. (2004). Crystal Growth of New Strontium Iron Rhodium Oxides: Sr_⁴Fe_0.73Rh_2.27O₉ and SrFe_0.71Rh_0.29O₃. Journal of Alloys and Compounds, 377(1–2), 91–97. https://doi.org/10.1016/j.jallcom.2004.01.041