Square lattice iridates

J Bertinshaw, YK Kim, G Khaliullin… - Annual Review of …, 2019 - annualreviews.org
Over the past few years, Sr2IrO4, a single-layer member of the Ruddlesden–Popper series
iridates, has received much attention as a close analog of cuprate high-temperature …

Spin-orbital entangled state and realization of Kitaev physics in 3d cobalt compounds: a progress report

C Kim, HS Kim, JG Park - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
The realization of Kitaev's honeycomb magnetic model in real materials has become one of
the most pursued topics in condensed matter physics and materials science. If found, it is …

Challenges in design of Kitaev materials: Magnetic interactions from competing energy scales

SM Winter, Y Li, HO Jeschke, R Valentí - Physical Review B, 2016 - APS
In this study, we reanalyze the magnetic interactions in the Kitaev spin-liquid candidate
materials Na 2 IrO 3, α-RuCl 3, and α-Li 2 IrO 3 using nonperturbative exact diagonalization …

Spin-orbit excitations and electronic structure of the putative Kitaev magnet

LJ Sandilands, Y Tian, AA Reijnders, HS Kim… - Physical Review B, 2016 - APS
Mott insulators with strong spin-orbit coupling have been proposed to host unconventional
magnetic states, including the Kitaev quantum spin liquid. The 4 d system α-RuCl 3 has …

Anisotropic magnetic couplings and structure-driven canted to collinear transitions in by magnetically constrained noncollinear DFT

P Liu, S Khmelevskyi, B Kim, M Marsman, D Li… - Physical Review B, 2015 - APS
We study the canted magnetic state in Sr 2 IrO 4 using fully relativistic density functional
theory (DFT) including an on-site Hubbard U correction. A complete magnetic phase …

Tuning electronic structure via epitaxial strain in Sr2IrO4 thin films

J Nichols, J Terzic, EG Bittle, OB Korneta… - Applied Physics …, 2013 - pubs.aip.org
We have synthesized epitaxial Sr 2 IrO 4 thin-films on various substrates and studied their
electronic structure as a function of lattice-strain. Under tensile (compressive) strain …

Orbital reconstruction in nonpolar tetravalent transition-metal oxide layers

NA Bogdanov, VM Katukuri, J Romhányi… - Nature …, 2015 - nature.com
A promising route to tailoring the electronic properties of quantum materials and devices
rests on the idea of orbital engineering in multilayered oxide heterostructures. Here we show …

Decomposing imaginary-time Feynman diagrams using separable basis functions: Anderson impurity model strong-coupling expansion

J Kaye, Z Huang, HUR Strand, D Golež - Physical Review X, 2024 - APS
We present a deterministic algorithm for the efficient evaluation of imaginary-time diagrams
based on the recently introduced discrete Lehmann representation (DLR) of imaginary-time …

Spin-orbit-controlled metal–insulator transition in Sr2IrO4

B Zwartsenberg, RP Day, E Razzoli, M Michiardi, N Xu… - Nature Physics, 2020 - nature.com
In the context of correlated insulators, where electron–electron interactions (U) drive the
localization of charge carriers, the metal–insulator transition is described as either …

Interplay between multipolar spin interactions, Jahn-Teller effect, and electronic correlation in a insulator

D Fiore Mosca, LV Pourovskii, BH Kim, P Liu, S Sanna… - Physical Review B, 2021 - APS
In this work, we study the complex entanglement between spin interactions, electron
correlation, and Janh-Teller structural instabilities in the 5 d 1 J eff= 3 2 spin-orbit coupled …