activity
20202023
most citedStrong Superexchange in a Nickelate Revealed by Resonant Inelastic X-Ray Scattering

71 citations · 158 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2023★ 16 cited

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…

cond-mat.str-el2023★ 10 cited

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…

cond-mat.str-el2022★ 11 cited

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…

cond-mat.supr-con2021★ 16 cited

Doping-dependence of the electron-phonon coupling in two families of bilayer superconducting cuprates

Yingying Peng, Leonardo Martinelli, Qizhi Li +21

While electron-phonon coupling (EPC) is crucial for Cooper pairing in conventional superconductors, its role in high- superconducting cuprates is debated. Using resonant inela…

cond-mat.str-el2021★ 16 cited

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…

cond-mat.str-el2021★ 18 cited

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…

cond-mat.supr-con2020★ 71 cited

Strong Superexchange in a Nickelate Revealed by Resonant Inelastic X-Ray Scattering

J. Q. Lin, P. Villar Arribi, G. Fabbris +20

The discovery of superconductivity in a nickelate has inspired disparate theoretical perspectives regarding the essential physics of this class of materials. A key issue…