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Decoupling of magnetism and electric transport in single-crystal (Sr1-xAx)2IrO4 (A = Ca or Ba)
H. D. Zhao, J. Terzic, H. Zheng +5
We report a systematical structural, transport and magnetic study of Ca or Ba doped Sr2IrO4single crystals. Isoelectronically substituting Ca2+ (up to 15%) or Ba2+ (up to 4%) ion f…
Electrical Control of Structural and Physical Properties via Strong Spin-Orbit Interactions in Sr2IrO4
G. Cao, J. Terzic, H. D. Zhao +3
Electrical control of structural and physical properties is a long-sought, but elusive goal of contemporary science and technology. We demonstrate that a combination of strong spin…
Magnetic anisotropy of the alkali iridate NaIrO at high magnetic fields: evidence for strong ferromagnetic Kitaev correlations
Sitikantha. D Das, Sarbajaya Kundu, Zengwei Zhu +10
The magnetic field response of the Mott-insulating honeycomb iridate NaIrO is investigated using torque magnetometry measurements in magnetic fields up to 60 tesla. A p…
Optical Signatures of Spin-Orbit Exciton in Bandwidth Controlled SrIrO Epitaxial Films via High-Concentration Ca and Ba Doping
M. Souri, B. H. Kim, J. H. Gruenewald +8
We have investigated the electronic and optical properties of (SrCa)IrO (x= 0 - 0.375) and (SrBa)IrO (y= 0 - 0.375) epitaxial thin-films,…
The Challenge of Spin-Orbit-Tuned Ground States in Iridates
Gang Cao, Pedro Schlottmann
Effects of spin-orbit interactions in condensed matter are an important and rapidly evolving topic. Strong competition between spin-orbit, on-site Coulomb and crystalline electric…
Charge partitioning and anomalous hole doping in Rh-doped Sr2IrO4
S. Chikara, G. Fabbris, J. Terzic +3
The simultaneous presence of sizable spin-orbit interactions and electron correlations in iridium oxides has led to predictions of novel ground states including Dirac semimetals, K…