Antiferromagnetism at T > 500 K in the Layered Hexagonal Ruthenate SrRu2O6

Abstract

We report an experimental and computational study of magnetic and electronic properties of the layered Ru(V) oxide SrRu2O6 (hexagonal, P-3 1m), which shows antiferromagnetic order with a Néel temperature of 563(2) K, among the highest for 4d oxides. Magnetic order occurs both within edge-shared octahedral sheets and between layers and is accompanied by anisotropic thermal expansivity that implies strong magnetoelastic coupling of Ru(V) centers. Electrical transport measurements using focused ion beam induced deposited contacts on a micron-scale crystallite as a function of temperature show p-type semiconductivity. The calculated electronic structure using hybrid density functional theory successfully accounts for the experimentally observed magnetic and electronic structure and Monte Carlo simulations reveals how strong intralayer as well as weaker interlayer interactions are a defining feature of the high temperature magnetic order in the material.

Physical Review B 2015 accepted for publication

References in corpus (8)

• Anisotropy in the electrical resistivity and susceptibility of superconducting BaFe${}_2$As${}_2$ single crystals
• Structural transition and anisotropic properties of single crystalline SrFe2As2
• Fermi surface and van Hove singularities in the itinerant metamagnet Sr3Ru2O7
• Field tunable spin density wave phases in Sr3Ru2O7
• High antiferromagnetic transition temperature of a honeycomb compound SrRu${}_2$O${}_6$
• A Novel Pyrochlore Ruthenate: Ca2Ru2O7
• Electronic structure and the origin of the high ordering temperature in SrRu2O6
• t2g-orbital model on a honeycomb lattice: application to antiferromagnet SrRu2O6

Cited by in corpus (20)

• Itinerant Antiferromagnetism in RuO${}_2$
• Orbital effects in solids: basics, recent progress and opportunities
• Orbital physics in transition metal compounds: new trends
• Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: $\alpha$-Li${}_2$IrO${}_3$ under pressure
• Coulomb Correlations in 4d and 5d Oxides from First Principles - or How Spin-Orbit Materials choose their Effective Orbital Degeneracies
• Localized itinerant electrons and unique magnetic properties of SrRu2O6
• High antiferromagnetic transition temperature of a honeycomb compound SrRu${}_2$O${}_6$
• High-temperature magnetostructural transition in van der Waals-layered a-MoCl3
• Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet
• DFT+DMFT study on soft moment magnetism and covalent bonding in SrRu${}_2$O${}_6$
• Transition-Metal Oxide (111) bilayers
• Strain-induced topological transition in SrRu${}_2$O${}_6$ and CaOs${}_2$O${}_6$
• Magnetic and electronic ordering phenomena in the [Ru${}_2$O${}_6$] honeycomb lattice compound AgRuO${}_3$
• Raman spectroscopy of the low dimensional antiferromagnet with large Neel temperature SrRu2O6
• Self-supervised graph neural networks for accurate prediction of Néel temperature
• MoP${}_3$SiO${}_{11}$: a $4d^3$ honeycomb antiferromagnet with disconnected octahedra
• Hidden covalent insulator and spin excitations in SrRu${}_2$O${}_6$
• High temperature antiferromagnetism in ultrathin SrRu2O6 nanosheets
• Localized-itinerant dichotomy and unconventional magnetism in SrRu${}_2$O${}_6$
• Temperature-induced valence-state transition in double perovskite Ba2-xSrxTbIrO6