The magnetic properties of iridium in mixed-metal oxides

A. V. Powell, J. G. Gore, P. D. Battle

Research output: Contribution to journalArticle

Abstract

The magnetic susceptibilities of La2Mg1-xZnxIrO6 (0< x <1), La2NiIrO6, La2CuIrO6, La2LiIrO6, BaLaMgIrO6, BaLaFeIrO6, BaLaCoIrO6, BaLaNiIrO6 and Sr4IrO6 have been measured as a function of temperature and applied magnetic field. Sr4IrO6, BaLaNiIrO6 and BaLaCoIrO6 order antiferromagnetically at 12, 87 and 56 K respectively. BaLaFeIrO6 shows a spin-glass transition at 65 K. La2NiIrO6 and BaLaCoIrO6 order as weak ferromagnets at 80 K and 70 K respectively. The solid solution La2Mg1-xZnxIrO6 shows a gradual change from antiferromagnetism (TN = 11.7 K) when x = 0 to ferromagnetism (Tc = 9.5 K, µsat = 0.4 µB) when x = 1. The Ir(V) oxides La2LiIrO6 and BaLaMgIrO6 are paramagnetic in the temperature range 6 K < T < 300 K. © 1993.

Original languageEnglish
Pages (from-to)73-84
Number of pages12
JournalJournal of Alloys and Compounds
Volume201
Issue number1-2
Publication statusPublished - 12 Nov 1993

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