154 citations · 652 across the 15 of their papers we have counts for
15 papers
Photoemission and Dynamical Mean Field Theory Study of Electronic Correlation in a Metal of SrRhO Thin Film
Yujun Zhang, Minjae Kim, Jernej Mravlje +8
Perovskite rhodates are characterized by intermediate strengths of both electronic correlation as well as spin-orbit coupling (SOC) and usually behave as moderately correlated meta…
Charge transfer in iridate-manganite superlattices
Satoshi Okamoto, John Nichols, Changhee Sohn +3
Charge transfer in superlattices consisting of SrIrO and SrMnO is investigated using density functional theory. Despite the nearly identical work function and non-polar int…
Electronic and magnetic properties of epitaxial SrRhO3 films
John Nichols, Simuck F. Yuk, Changhee Sohn +4
Strong interplay of fundamental order parameters in complex oxides are known to give rise to exotic physical phenomena. The 4d transition metal oxide SrRhO3 has generated much inte…
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,…
Nanoscale self-templating for oxide epitaxy with large symmetry mismatch
Xiang Gao, Shinbuhm Lee, John Nichols +4
Direct observations using scanning transmission electron microscopy unveil an intriguing interfacial bi-layer that enables epitaxial growth of a strain-free, monoclinic, bronze-pha…
Enhancing interfacial magnetization with a ferroelectric
Tricia L. Meyer, 1 Andreas Herklotz, Valeria Lauter +9
Ferroelectric control of interfacial magnetism has attracted much attention. However, the coupling of these two functionalities has not been understood well at the atomic scale. Th…
Emerging magnetism and anomalous Hall effect in iridate-manganite heterostructures
John Nichols, Xiang Gao, Shinbuhm Lee +14
Strong Coulomb repulsion and spin-orbit coupling are known to give rise to exotic physical phenomena in transition metal oxides. Initial attempts to investigate systems where both…
Compressive strain-induced metal-insulator transition in orthorhombic SrIrO3 thin films
J. H. Gruenewald, J. Nichols, J. Terzic +3
We have investigated the electronic properties of epitaxial orthorhombic SrIrO3 thin-films under compressive strain. The metastable, orthorhombic SrIrO3 thin-films are synthesized…
Tuning Magnetic Coupling in SrIrO Thin Films with Epitaxial Strain
A. Lupascu, J. P. Clancy, H. Gretarsson +16
We report x-ray resonant magnetic scattering (XRMS) and resonant inelastic x-ray scattering (RIXS) studies of epitaxially-strained thin films. The films were g…
Anisotropic electronic properties of a-axis-oriented Sr2IrO4 epitaxial thin-films
J. Nichols, O. B. Korneta, J. Terzic +4
We have investigated the transport and optical properties along the c-axis of a-axis-oriented Sr2IrO4 epitaxial thin-films grown on LaSrGaO4 (100) substrates. The c-axis resistivit…
Tuning electronic structures via epitaxial strain in Sr2IrO4 thin films
J. Nichols, J. Terzic, E. G. Bittle +5
We have synthesized epitaxial Sr2IrO4 thin-films on various substrates and studied their electronic structures as a function of lattice-strains. Under tensile (compressive) strains…
Direct observation of the Mott gap in strontium iridate with a scanning tunneling microscope
John Nichols, Noah Bray-Ali, Gang Cao +1
The single-layer Mott insulator strontium iridate SrIrO was studied using a scanning tunneling microscope. This measurement technique is unique due to the transport propert…
Torque and temperature dependence of the hysteretic voltage-induced torsional strain in tantalum trisulfide
H. Zhang, J. Nichols, J. W. Brill
We have measured the dependence of the hysteretic voltage-induced torsional strain (VITS) in crystals of orthorhombic tantalum trisulfide on temperature and applied torque. In part…
Dynamics of the hysteretic voltage-induced torsional strain in tantalum trisulfide
J. Nichols, C. Sandamali Weerasooriya, J. W. Brill
We have studied how the hysteretic voltage-induced torsional strain, associated with charge-density-wave depinning, in orthorhombic tantalum trisulfide depends on square-wave and t…
Characterization of the Torsional Piezoelectric-like Response of Tantalum Trisulfide Associated with Charge-Density-Wave Depinning
J. Nichols, D. Dominko, L. Ladino +2
We have studied the frequency and voltage dependence of voltage-induced torsional strains in orthorhombic TaS3 [V. Ya. Pokrovskii, et al, Phys. Rev. Lett. 98, 206404 (2007)] by mea…