Strain induced changes of electronic properties of B-site ordered double perovskite Sr${}_2$CoIrO${}_6$ thin films

Abstract

B-site ordered thin films of double perovskite Sr${}_2$CoIrO${}_6$ were epitaxially grown by a metal-organic aerosol deposition technique on various substrates, actuating different strain states. X-ray diffraction, transmission electron microscopy and polarized far-field Raman spectroscopy confirm the strained epitaxial growth on all used substrates. Polarization dependent Co $L_{2,3}$ X-ray absorption spectroscopy reveals a change of the magnetic easy axis of the antiferromagnetically ordered (high-spin) Co${}^{3+}$ sublattice within the strain series. By reversing the applied strain direction from tensile to compressive, the easy axis changes abruptly from in-plane to out-of-plane orientation. The low-temperature magnetoresistance changes its sign respectively and is described by a combination of weak anti-localization and anisotropic magnetoresistance effects.

19 pages, 29 figures (including supplemental material)

References in corpus (22)

• Anyons in an exactly solved model and beyond
• Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Models and Materials for Generalized Kitaev Magnetism
• Semimetal and Topological Insulator in Perovskite Iridates
• Colossal electroresistance and electronic phase separation in mixed-valent manganites
• Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO${}_3$
• A different look at the spin state of Co${}^{3+}$ ions in CoO${}_5$ pyramidal coordination
• Controlling orbital moment and spin orientation in CoO layers by strain
• Spin blockade, orbital occupation and charge ordering in La_(1.5)Sr_(0.5)CoO4
• Novel magnetism of Ir5+ ions in the double perovskite Sr2YIrO6
• Magnetic versus crystal field linear dichroism in NiO thin films
• Magnetism and electronic structure of La2ZnIrO6 and La2MgIrO6: candidate Jeff =1/2 Mott insulators
• The iridium double perovskite Sr2YIrO6 revisited: A combined structural and specific heat study
• Advanced resistivity model for arbitrary magnetization orientation applied to a series of compressive- to tensile-strained (Ga,Mn)As layers
• Low-energy electronic properties of clean CaRuO${}_3$: elusive Landau quasiparticles
• Spontaneous atomic ordering and magnetism in epitaxially stabilized double perovskites
• Strain-induced perpendicular magnetic anisotropy in La${}_2$CoMnO${}_{6-\epsilon }$ thin films and its dependence with film thickness
• Diluted paramagnetic impurities in nonmagnetic Ba${}_2$YIrO${}_6$
• Orbital ordering of Ir-t2g states in the double perovskite Sr2CeIrO6
• Intricacies of the Co${}^{3+}$ spin state in Sr${}_2$Co${}_{0.5}$Ir${}_{0.5}$O${}_4$: an x-ray absorption and magnetic circular dichroism study
• Magnetic anisotropy and valence states in La${}_2$Co${}_{1-x}$Mn${}_{1+x}$O${}_6$ ($x\approx 0.23$) thin films studied by X-ray absorption spectroscopy techniques

Cited by in corpus (6)

• Nature of the magnetism of iridium in the double perovskite Sr2CoIrO6
• Structural, transport, optical and electronic properties of Sr${}_2$CoNbO${}_6$ thin films
• The effect of structural and magnetic disorder on the 3$d$-5$d$ exchange interactions of La${}_{2-x}$Ca${}_x$CoIrO${}_6$
• Tunable Magnetic Properties in Sr${}_2$FeReO${}_6$ Double-Perovskite
• Electronic reconstruction and charge transfer in strained Sr${}_2$CoIrO${}_6$ double perovskite
• The Co${}^{2+}$-Ir${}^{5+}$ orbital hybridization in LaCaCoIrO${}_6$ double perovskite