455 citations · 3.5k across the 54 of their papers we have counts for
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Reply to "Comment on newly found Charge Density Waves in infinite layer Nickelates''
Charles C. Tam, Jaewon Choi, Xiang Ding +9
Charge density waves (CDW) have been reported in NdNiO and LaNiO thin films grown on SrTiO substrates using Ni- resonant x-ray scattering in Refs. [1-3]. In their…
Collective nature of orbital excitations in layered cuprates in the absence of apical oxygens
Leonardo Martinelli, Krzysztof Wohlfeld, Jonathan Pelliciari +19
We have investigated the 3d orbital excitations in CaCuO2 (CCO), Nd2CuO4 (NCO), and La2CuO4 (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as w…
Chiral phonons probed by X rays
Hiroki Ueda, Mirian García-Fernández, Stefano Agrestini +5
The concept of chirality is of great relevance in nature, from chiral molecules such as sugar to parity transformations in particle physics. In condensed matter physics, recent stu…
Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
Jaewon Choi, Jiemin Li, Abhishek Nag +12
The omnipresence of charge density waves (CDWs) across almost all cuprate families underpins a common organizing principle. However, a longstanding debate of whether its spatial sy…
Correlation driven near-flat band Stoner excitations in a Kagome magnet
Abhishek Nag, Yiran Peng, Jiemin Li +9
Among condensed matter systems, Mott insulators exhibit diverse properties that emerge from electronic correlations. In itinerant metals, correlations are usually weak, but can als…
Orbital selective coupling in CeRhB: co-existence of high Curie and high Kondo temperature
Andrea Amorese, Philipp Hansmann, Andrea Marino +12
We investigated the electronic structure of the enigmatic CeRhB using resonant inelastic scattering and x-ray absorption spectroscopy in combination with dens…
Gapped collective charge excitations and interlayer hopping in cuprate superconductors
M. Hepting, M. Bejas, A. Nag +17
We use resonant inelastic x-ray scattering (RIXS) to probe the propagation of plasmons in the electron-doped cuprate superconductor SrLaCuO (SLCO). We detect a…
Multiferroic-enabled magnetic exciton in 2D quantum entangled van der Waals antiferromagnet NiI2
Suhan Son, Youjin Lee, Jae Ha Kim +15
Matter-light interaction is at the center of diverse research fields from quantum optics to condensed matter physics, opening new fields like laser physics. A magnetic exciton is o…
Unraveling higher-order corrections in the spin dynamics of RIXS spectra
Umesh Kumar, Abhishek Nag, Jiemin Li +9
Resonant inelastic x-ray scattering (RIXS) is an evolving tool for investigating spin dynamics of strongly correlated materials, which complements inelastic neutron scattering. Bot…
Probing electron-phonon interactions away from the Fermi level with resonant inelastic x-ray scattering
C. D. Dashwood, A. Geondzhian, J. G. Vale +16
Interactions between electrons and lattice vibrations are responsible for a wide range of material properties and applications. Recently, there has been considerable interest in th…
Evolution of the electronic structure in TaNiSe across the structural transition revealed by resonant inelastic x-ray scattering
Haiyu Lu, Matteo Ross, 1Jung-ho Kim +11
We utilized high-energy-resolution resonant inelastic X-ray scattering (RIXS) at both the Ta and Ni -edges to map out element-specific particle-hole excitations in TaNiSe$…
Orbital and Spin Character of Doped Carriers in Infinite-Layer Nickelates
M. Rossi, H. Lu, A. Nag +13
The recent discovery of superconductivity in NdSrNiO has drawn significant attention in the field. A key open question regards the evolution of the electronic str…
Unraveling the orbital physics in a canonical orbital system KCuF
Jiemin Li, Lei Xu, Mirian Garcia-Fernandez +9
We explore the existence of the collective orbital excitations, orbitons, in the canonical orbital system KCuF. Using the Cu -edge resonant inelastic X-ray scattering we s…
Evolution of spin excitations from bulk to monolayer FeSe
J. Pelliciari, S. Karakuzu, Q. Song +17
The discovery of enhanced superconductivity (SC) in FeSe films grown on SrTiO3 (FeSe/STO) has revitalized the field of Fe-based superconductors. In the ultrathin limit, the superco…
Dynamical spin susceptibility in La2CuO4 studied by resonant inelastic x-ray scattering
H. C. Robarts, M. Garcia-Fernandez, J. Li +5
Resonant inelastic X-ray scattering (RIXS) is a powerful probe of elementary excitations in solids. It is now widely applied to study magnetic excitations. However, its complex cro…
Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering
Abhishek Nag, M. Zhu, Matias Bejas +11
High Tc superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or acoustic plasmons in thes…
Multi-orbital charge density wave excitations and concomitant phonon anomalies in BiSrLaCuO
Jiemin Li, Abhishek Nag, Jonathan Pelliciari +9
Charge density waves (CDWs) are ubiquitous in under-doped cuprate superconductors. As a modulation of the valence electron density, CDWs in hole-doped cuprates possess both Cu-3d a…
High-resolution resonant inelastic x-ray scattering study of the electron-phonon coupling in honeycomb -LiIrO
J. G. Vale, C. D. Dashwood, E. Paris +11
The excitations in honeycomb -LiIrO have been investigated with high-resolution resonant inelastic x-ray scattering (RIXS) at the O K edge. The low-energy response is do…
Direct observation of multi-spinon excitations outside of the two-spinon continuum in the antiferromagnetic spin chain cuprate Sr2CuO3
J. Schlappa, U. Kumar, K. J. Zhou +8
One-dimensional (1D) magnetic insulators have attracted significant interest as a platform for studying emergent phenomena such as quasiparticle fractionalization and quantum criti…
Orbital breathing effects in the computation of x-ray d-ion spectra in solids by ab initio wave-function-based methods
Nikolay A. Bogdanov, Valentina Bisogni, Roberto Kraus +8
In existing theoretical approaches to core-level excitations of transition-metal ions in solids relaxation and polarization effects due to the inner core hole are often ignored or…
Probing inter- and intrachain Zhang-Rice excitons in LiCuO and determining their binding energy
Claude Monney, Valentina Bisogni, Ke-Jin Zhou +8
Cuprate materials, like those hosting high temperature superconductivity, represent a famous class of materials where the correlations between the strongly entangled charges and sp…
Electron-lattice interactions strongly renormalize the charge transfer energy in the spin-chain cuprate LiCuO
Steve Johnston, Claude Monney, Valentina Bisogni +9
Strongly correlated insulators are broadly divided into two classes: Mott-Hubbard insulators, where the insulating gap is driven by the Coulomb repulsion on the transition-meta…
Charge-orbital-lattice coupling effects in the dd-excitation profile of one dimensional cuprates
J. J. Lee, B. Moritz, W. S. Lee +12
We identify dd-excitations in the quasi-one dimensional compound CaYCuO using resonant inelastic x-ray scattering. By tuning across the Cu L-edge, we observe…
Orbital control of effective dimensionality: from spin-orbital fractionalization to confinement in the anisotropic ladder system CaCu2O3
Valentina Bisogni, Krzysztof Wohlfeld, Satoshi Nishimoto +11
Fractionalization of an electronic quasiparticle into spin, charge and orbital parts is a fundamental and characteristic property of interacting electrons in one dimension. However…