475 citations · 3.4k across the 62 of their papers we have counts for
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Low-energy electronic interactions in ferrimagnetic Sr2CrReO6 thin films
Guillaume Marcaud, Alex Taekyung Lee, Adam J. Hauser +14
We reveal in this study the fundamental low-energy landscape in the ferrimagnetic Sr2CrReO6 double perovskite and describe the underlying mechanisms responsible for the three low-e…
Non-local features of the spin-orbit exciton in Kitaev materials
Blair W. Lebert, Subin Kim, Beom Hyun Kim +7
A comparative resonant inelastic x-ray scattering (RIXS) study of three well-known Kitaev materials is presented: -LiIrO, NaIrO, and -RuCl. Despite simila…
On the electronic ground state of two non-magnetic pentavalent honeycomb iridates
A. de la Torre, B. Zager, J. R. Chamorro +6
We investigate the electronic structure of two Ir honeycomb iridates, SrCaIrO and NaIrO, by means of resonant x-ray techniques. We confirm that SrCaIr$_2…
Magnetic excitations in double perovskite iridates LaIrO ( = Co, Ni, and Zn) mediated by 3-5 hybridization
Wentao Jin, Sae Hwan Chun, Jungho Kim +6
By performing resonant inelastic x-ray scattering (RIXS) measurements at the Ir edge, we have investigated the low-energy elementary excitations in a seri…
Antiferromagnetic Excitonic Insulator State in Sr3Ir2O7
D. G. Mazzone, Y. Shen, H. Suwa +13
Excitonic insulators are usually considered to form via the condensation of a soft charge mode of bound electron-hole pairs. This, however, presumes that the soft exciton is of spi…
Emergence of spinons in layered trimer iridate Ba4Ir3O10
Y. Shen, J. Sears, G. Fabbris +13
Spinons are well-known as the elementary excitations of one-dimensional antiferromagnetic chains, but means to realize spinons in higher dimensions is the subject of intense resear…
Nearly itinerant electronic groundstate in the intercalated honeycomb iridate AgLiIrO
A. de la Torre, B. Zager, F. Bahrami +9
We use x-ray spectroscopy at Ir L/L absorption edge to study powder samples of the intercalated honeycomb magnet AgLiIrO. Based on x-ray absorption and resonant…
Magnon-spinon dichotomy in the Kitaev hyperhoneycomb -LiIrO
Alejandro Ruiz, Nicholas P. Breznay, Mengqun Li +16
The family of edge-sharing tri-coordinated iridates and ruthenates has emerged in recent years as a major platform for Kitaev spin liquid physics, where spins fractionalize into em…
Strain-engineering of the charge and spin-orbital interactions in Sr2IrO4
Eugenio Paris, Yi Tseng, Ekaterina M. Pärschke +16
In the high spin-orbit coupled Sr2IrO4, the high sensitivity of the ground state to the details of the local lattice structure shows a large potential for the manipulation of the f…
Laser-Induced Transient Magnons in Sr3Ir2O7 Throughout the Brillouin Zone
D. G. Mazzone, D. Meyers, Y. Cao +32
Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding of…
Exploring itinerant states in divalent hexaborides using rare-earth edge resonant inelastic X-ray scattering
Donal Sheets, Vincent Flynn, Jungho Kim +10
We present a study of resonant inelastic X-ray scattering (RIXS) spectra collected at the rare-earth edges of divalent hexaborides YbB and EuB. In both systems, RIXS-ac…
Pseudospin-lattice coupling in the spin-orbit Mott insulator Sr2IrO4
J. Porras, J. Bertinshaw, H. Liu +15
Spin-orbit entangled magnetic dipoles, often referred to as pseudospins, provide a new avenue to explore novel magnetism inconceivable in the weak spin-orbit coupling limit, but th…
Probing electronic excitations in iridates with resonant inelastic x-ray scattering and emission spectroscopy techniques
Young-June Kim, J. P. Clancy, H. Gretarsson +6
We report a comprehensive resonant inelastic x-ray scattering (RIXS) study of various iridate materials focusing on core-level excitations and transitions between crystal-field spl…
Spin-orbit coupled systems in the "atomic" limit: rhenates, osmates, iridates
Arun Paramekanti, David J. Singh, Bo Yuan +4
Motivated by RIXS experiments on a wide range of complex heavy oxides, including rhenates, osmates, and iridates, we discuss the theory of RIXS for site-localized orbital…
Pressure-driven collapse of the relativistic electronic ground state in a honeycomb iridate
J. P. Clancy, H. Gretarsson, J. A. Sears +16
The electronic ground state in many iridate materials is described by a complex wave-function in which spin and orbital angular momenta are entangled due to relativistic spin-orbit…
Evolution of Magnetic Excitations Across the Metal-Insulator Transition in a Pyrochlore Iridate EuIrO
Sae Hwan Chun, Bo Yuan, Diego Casa +6
We report Resonant Inelastic X-ray Scattering (RIXS) study of the magnetic excitation spectrum in a highly insulating EuIrO single crystal that exhibits a metal-i…
Direct experimental observation of the molecular Jeff=3/2 ground state in the lacunar spinel GaTa4Se8
Min Yong Jeong, Seo Hyoung Chang, Beom Hyun Kim +9
Strong spin-orbit coupling lifts the degeneracy of t2g orbitals in 5d transition-metal systems, leaving a Kramers doublet and quartet with effective angular momentum of Jeff = 1/2…
Magnetism in artificial Ruddlesden-Popper iridates leveraged by structural distortions
D. Meyers, Yue Cao, G. Fabbris +18
We report on the tuning of magnetic interactions in superlattices composed of single and bilayer SrIrO inter-spaced with SrTiO. Magnetic scattering shows predominately -…
Determination of Hund's coupling in 5d Oxides using Resonant Inelastic X-ray Scattering
Bo Yuan, J. P. Clancy, A. M. Cook +10
We report resonant inelastic X-ray scattering (RIXS) measurements on ordered double perovskite samples containing Re and Ir with and electronic configur…
Giant Spin Gap and Magnon Localization in the Disordered Heisenberg Antiferromagnet Sr2Ir1-xRuxO4
Yue Cao, Xuerong Liu, Wenhu Xu +15
We study the evolution of magnetic excitations in the disordered two-dimensional antiferromagnet Sr2Ir1-xRuxO4. A gigantic magnetic gap greater than 40 meV opens at x = 0.27 and in…
Pressure-Induced Confined Metal from the Mott Insulator Sr3Ir2O7
Yang Ding, Liuxiang Yang, Cheng-Chien Chen +12
The spin-orbit Mott insulator Sr3Ir2O7 provides a fascinating playground to explore insulator-metal transition driven by intertwined charge, spin, and lattice degrees of freedom. H…
Ultrafast energy and momentum resolved dynamics of magnetic correlations in photo-doped Mott insulator SrIrO
M. P. M. Dean, Yue Cao, X. Liu +32
Measuring how the magnetic correlations throughout the Brillouin zone evolve in a Mott insulator as charges are introduced dramatically improved our understanding of the pseudogap,…
X-ray scattering study of pyrochlore iridates: crystal structure, electronic and magnetic excitations
J. P. Clancy, H. Gretarsson, E. K. H. Lee +12
We have investigated the structural, electronic, and magnetic properties of the pyrochlore iridates Eu2Ir2O7 and Pr2Ir2O7 using a combination of resonant elastic x-ray scattering,…
Emergent excitation at the magnetic metal-insulator transition in the pyrochlore osmate Cd2Os2O7
S. Calder, J. G. Vale, N. A. Bogdanov +13
The rich physics manifested by 5d oxides falls outside the Mott-Hubbard paradigm used to successfully explain the electronic and magnetic properties of 3d oxides. Much consideratio…