Magnetic properties of Sr3NiIrO6 and Sr3CoIrO6: Magnetic hysteresis with coercive fields of up to 55 T

John Singleton, Jae Wook Kim, Craig V. Topping, Anders Hansen, Eun Deok Mun, S. Chikara, I. Lakis, Saman Ghannadzadeh, Paul Goddard, Xuan Luo, Yoon Seok Oh, Sang Wook Cheong, Vivien Zapf

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21 Scopus citations

Abstract

We report extraordinarily large magnetic hysteresis loops in the iridates Sr3NiIrO5 and Sr3CoIrO6. We find coercive magnetic fields of up to 55 T with switched magnetic moments ≈1μB per formula unit in Sr3NiIrO6 and coercive fields of up to 52 T with switched moments ≈3μB per formula unit in Sr3CoIrO6. We propose that the magnetic hysteresis involves the field-induced evolution of quasi-one-dimensional chains in a frustrated triangular configuration. The striking magnetic behavior is likely to be linked to the unusual spin-orbit-entangled local state of the Ir4+ ion and its potential for anisotropic exchange interactions.

Original languageEnglish
Article number224408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume94
Issue number22
DOIs
StatePublished - Dec 8 2016

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