Substitutions into the trigonal bipyramidal site of InGaCuO4

Rational design, crystal structure, and frustrated magnetism of the Ge-containing YbFe2O4-type layered oxides In2Zn3−xCoxGeO8 (0 ≤ x ≤ 3)

“…Fe 2+/3+ ions in RFe 2 O 4 can be substituted by various combinations of divalent Cu 2+ , Co 2+ , Zn 2+ , and Mg 2+ with trivalent Ga 3+ and Al 3+ cations, forming a large family of RFe 2 O 4 -type oxides with the general chemical formula RM1 2+ M2 3+ O 4 . 7–9,21–27 These oxides show intriguing magnetic, optical, and dielectric properties. Herein, we use tetravalent Ge 4+ ions in combination with divalent M 2+ (M = Cu, Co, Zn, and Mg) ions to design a new oxide series of R 2 M 3 GeO 8 .…”

“…All the above appealing physical properties have stimulated tremendous investigations on RFe 2 O 4 . Fe 2+/3+ ions in RFe 2 O 4 can be substituted by various combinations of divalent Cu 2+ , Co 2+ , Zn 2+ , and Mg 2+ with trivalent Ga 3+ and Al 3+ cations, forming a large family of RFe 2 O 4 -type oxides with the general chemical formula RM1 2+ M2 3+ O 4 [7][8][9][21][22][23][24][25][26][27]. These oxides show intriguing magnetic, optical, and dielectric properties.…”