Lattice Instability and Competing Spin Structures in the Double Perovskite Insulator Sr2FeOsO6

Abstract

The semiconductor Sr2FeOsO6, depending on temperature, adopts two types of spin structures that differ in the spin sequence of ferrimagnetic iron - osmium layers along the tetragonal c-axis. Neutron powder diffraction experiments, 57Fe Mössbauer spectra, and density-functional theory calculations suggest that this behavior arises because a lattice instability resulting in alternating iron-osmium distances fine-tunes the balance of competing exchange interactions. Thus, Sr2FeOsO6 is an example for a double perovskite, in which the electronic phases are controlled by the interplay of spin, orbital, and lattice degrees of freedom.

8 Pages, 3 Figures

References in corpus (5)

• Magnetic and electric properties of double-perovskites and estimation of their Curie temperatures by ab initio calculations
• Synthesis, Crystal Structure and Physical Properties of Sr2FeOsO6
• Theory of High T${}_c$ Ferrimagnetism in a Multi-orbital Mott Insulator
• Microscopic Coexistence of Antiferromagnetic and Spin-Glass States
• Two-Dimensional Magnetic Correlations and Partial Long-Range Order in Geometrically Frustrated Sr2YRuO6

Cited by in corpus (27)

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• Effect of Chemical Pressure on High Temperature Ferrimagnetic Double Perovskites Sr2CrOsO6 and Ca2CrOsO6
• Ferrimagnetism in the double perovskite Ca2FeOsO6: a density functional study
• Spin-orbit coupling controlled ground state in Sr${}_2$ScOsO${}_6$
• Long-range magnetic interaction and frustration in double perovskite Sr${}_2$NiIrO${}_6$
• Effects of chemical pressure on the magnetic ground states of the osmate double perovskites SrCaCoOsO6 and Ca2CoOsO6
• Understanding the Magnetic Puzzles of Double Perovskites A2FeOsO6 (A=Ca, Sr)
• Spin-Orbital Order Modified by Orbital Dilution in Transition Metal Oxides: From Spin Defects to Frustrated Spins Polarizing Host Orbitals
• Active role of the nonmagnetic cations in magnetic interactions for the double-perovskite Sr2BOsO6 (B=Y, In, Sc)
• Spin-orbit coupling control of anisotropy, ground state and frustration in 5d2 Sr2MgOsO6
• Origin of magnetic excitation gap in double perovskite Sr${}_2$FeOsO${}_6$
• The role of nonmagnetic d0 vs. d10 B-type cations on the magnetic exchange interactions in osmium double perovskites
• Orbital ordering of Ir-t2g states in the double perovskite Sr2CeIrO6
• Phase driven magnetic and optoelectronic properties ofLa2CrNiO6: A DFT and Monte Carlo perspective
• Time-reversal-breaking topological phases in antiferromagnetic Sr${}_2$FeOsO${}_6$ films
• Magnetically driven loss of centrosymmetry in metallic Pb2CoOsO6
• Muon-spin relaxation study of the double perovskite insulators Sr${}_{2}B$OsO${}_6$ ($B=\mathrm{Fe},\mathrm{Y},\mathrm{In}$)
• Re-t2g-splitting-driven semiconductor gaps in ferrimagnetic double perovskite Ca2MReO6 (M=Cr,Fe) from first principles
• Intertwined Magnetic Sub-Lattices in the Double Perovskite Compound LaSrNiReO6
• Magnetic frustration in the cubic double perovskite Ba2NiIrO6
• Neutron Scattering Investigation of Rhenium Orbital Ordering in $3d-5d$ Double Perovskite Ca${}_2$FeReO${}_6$
• Structural, magnetic and dielectric properties in 3$d$-5$d$ based Sr${}_2$FeIrO${}_6$ thin films
• From Frustrated to Unfrustrated: Coupling two triangular-lattice itinerant Quantum Magnets
• Crystal Growth of a New 8H Perovskite Sr8Os6.3O24 Exhibiting High TC Ferromagnetism