Magnetic structure determination of Ca${}_3$LiOsO${}_6$ using neutron and x-ray scattering

Abstract

We present a neutron and x-ray scattering investigation of Ca${}_3$LiOsO${}_6$, a material predicted to host magnetic ordering solely through an extended superexchange pathway involving two anions, an interaction mechanism that has undergone relatively little investigation. This contrasts with the ubiquitous superexchange interaction mechanism involving a single anion that has well defined and long standing rules. Despite the apparent 1D nature and triangular units of magnetic osmium ions the onset of magnetic correlations has been observed at a high temperature of 117 K in bulk measurements. We experimentally determine the magnetically ordered structure and show it to be long range and three dimensional. Our results support the model of extended superexchange interaction.

References in corpus (2)

• Long range magnetic ordering in Na${}_2$IrO${}_3$
• Magnetically driven metal-insulator transition in NaOsO3

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• Interplay of spin-orbit coupling and hybridization in Ca3LiOsO6 and Ca3LiRuO6
• High-pressure hydrothermal growth and characterization of Sr3Os4O14 single crystals
• Single crystal growth and magnetism of Sr3NaIrO6 and Sr3AgIrO6: tracking the J = 0 ground state of Ir5+