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Title: Structural and magnetic investigation of In{sub 2}Fe{sub 2−x}Ga{sub x}CuO{sub 7}

The solid solution of In{sub 2}Fe{sub 2−x}Ga{sub x}CuO{sub 7} (space group P6{sub 3}/mmc) was synthesized and investigated through X-ray diffraction and magnetic susceptibility studies. Limited changes to the lattice parameters were observed as a result of the similar ionic radii for Fe{sup 3+} and Ga{sup 3+} in the trigonal bipyramidal (TBP) crystallographic site. An increase in the Weiss temperature, along with spin glass behavior are observed from x=0 to x=2, but irregularities in the trend are apparent for x=0.75 and 1. With the highest concentration in magnetic ions, In{sub 2}Fe{sub 2}CuO{sub 7} appears to have competing nearest neighbor interactions that produce a suppression of the Curie tail and the experimental magnetic moment. In comparison to InFe{sub 1−x}Ga{sub x}CuO{sub 4}, both solid solutions show an invariable progression of the lattice parameters, but the magnetic properties are greatly affected by the distinct TBP layering schemes. - Graphical abstract: Solid solution of In{sub 2}Fe{sub 2−x}Ga{sub x}CuO{sub 7} has been synthesized and analyzed with powder X-ray diffraction and DC magnetic susceptibility studies. The magnetic ground state has been investigated through cation substitution and compared to that of InFe{sub 1−x}Ga{sub x}CuO{sub 4}. Highlights: • The complete solid solution of In{sub 2}Fe{sub 2−x}Ga{sub x}CuO{sub 7} hasmore » been synthesized. • Limited changes in the lattice parameters were observed through XRD refinements. • Spin glass magnetic interactions were found to depend on Fe{sup 3+} content. • The layering of the TBP greatly affects the observed magnetic interactions.« less
Authors:
 [1] ;  [2] ;  [2] ;  [1]
  1. Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis 97331, OR (United States)
  2. Department of Physics, University of California Santa Cruz, Santa Cruz 95064, CA (United States)
Publication Date:
OSTI Identifier:
22274041
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 204; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATIONS; CRYSTALLOGRAPHY; GALLIUM IONS; GROUND STATES; HCP LATTICES; INTERACTIONS; LATTICE PARAMETERS; LAYERS; MAGNETIC MOMENTS; MAGNETIC SUSCEPTIBILITY; OXIDES; POWDERS; SOLID SOLUTIONS; SPACE GROUPS; SPIN GLASS STATE; TRANSITION ELEMENTS; X-RAY DIFFRACTION