455 citations · 3.5k across the 54 of their papers we have counts for
19 papers · 1 filter
Evolution of orbital excitations from insulating to superconducting MgTiO films
Qizhi Li, Abhishek Nag, Xiquan Zheng +6
Spinel oxides are well-known functional materials but rarely show superconductivity. Recently, emergent superconductivity was discovered in MgTiO, which is attributed to th…
Magnetic Excitations in Strained Infinite-layer Nickelate PrNiO2
Qiang Gao, Shiyu Fan, Qisi Wang +16
Strongly correlated materials often respond sensitively to the external perturbations. In the recently discovered superconducting infinite-layer nickelates, the superconducting tra…
Unusual Hole-doping-dependent Electronic Instability and Electron-Phonon Coupling in Infinite-layer Nickelates
Xuelei Sui, Jianfeng Wang, Xiang Ding +4
The interplay between superconductivity and charge density waves (CDWs) under hole doping in cuprates is one of the central phenomena in condensed matter physics. Recently, CDWs ar…
A Broken Translational Symmetry State in an Infinite-Layer Nickelate
Matteo Rossi, Motoki Osada, Jaewon Choi +17
A defining signature of strongly correlated electronic systems is the existence of competing phases with similar ground state energies, resulting in a rich phase diagram. While in…
Charge density waves in infinite-layer NdNiO nickelates
Charles C. Tam, Jaewon Choi, Xiang Ding +7
In materials science, much effort has been devoted to reproduce superconductivity in chemical compositions analogous to cuprate superconductors since their discovery over thirty ye…
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…
Magnetic excitations in infinite-layer nickelates
H. Lu, M. Rossi, A. Nag +14
The discovery of superconductivity in infinite-layer nickelates brings us tantalizingly close to a new material class that mirrors the cuprate superconductors. Here, we report on m…
Charge Transfer and excitations in AgF
Nimrod Bachar, Kacper Koteras, Jakub Gawraczynski +11
Charge transfer (CT) insulators are the parent phase of a large group of today's unconventional high-temperature superconductors. Here we study experimentally and theoretically the…
Charge Order Lock-in by Electron-Phonon Coupling in LaEuSrCuO
Qisi Wang, K. von Arx, M. Horio +11
We report an ultrahigh resolution resonant inelastic x-ray scattering (RIXS) study of the in-plane bond-stretching phonon mode in stripe-ordered cuprate LaEuSr$_{…
Paramagnons and high-temperature superconductivity in mercury-based cuprates
Lichen Wang, Guanhong He, Zichen Yang +8
We present a comparative study of magnetic excitations in the first two Ruddlesden-Popper members of the Hg-family of high-temperature superconducting cuprates, which are chemicall…
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…
Spectroscopic Evidence for Charge Order Melting via Quantum Fluctuations in a Cuprate
W. S. Lee, K. J. Zhou, M. Hepting +14
Copper-oxide high TC superconductors possess a number of exotic orders co-existing with or proximal to superconductivity, whose quantum fluctuations may account for the unusual beh…
High-Temperature Charge-Stripe Correlations in LaEuSrCuO
Qisi Wang, M. Horio, K. von Arx +24
We use resonant inelastic x-ray scattering to investigate charge-stripe correlations in LaEuSrCuO. By differentiating elastic from inelastic scatter…
Electronic structure of the parent compound of superconducting infinite-layer nickelates
M. Hepting, D. Li, C. J. Jia +22
The search for oxide materials with physical properties similar to the cuprate high Tc superconductors, but based on alternative transition metals such as nickel, has grown and evo…
Doping evolution of the charge excitations and electron correlations in electron-doped superconducting LaCeCuO
J. Q. Lin, Jie Yuan, Kui Jin +10
Electron correlations play a dominant role in the charge dynamics of the cuprates. We use resonant inelastic x-ray scattering (RIXS) to track the doping dependence of the collectiv…
Magnetic excitations and phonons simultaneously studied by resonant inelastic x-ray scattering in optimally doped BiPbSrLaCuO
Y. Y. Peng, M. Hashimoto, M. Moretti Sala +13
Magnetic excitations in the optimally doped high- superconductor BiPbSrLaCuO (OP-Bi2201, K) are inves…
Persistent high-energy spin excitations in iron pnictide superconductors
K. J. Zhou, Y. B. Huang, C. Monney +10
Motivated by the premise that superconductivity in iron-based superconductors is unconventional and mediated by spin fluctuations, an intense research effort has been focused on ch…
Intense paramagnon excitations in a large family of high-temperature superconductors
M. Le Tacon, G. Ghiringhelli, J. Chaloupka +17
In the search for the mechanism of high-temperature superconductivity, intense research has been focused on the evolution of the spin excitation spectrum upon doping from the antif…
Energy and symmetry of excitations in undoped layered cuprates measured by Cu resonant inelastic x-ray scattering
M. Moretti Sala, V. Bisogni, C. Aruta +17
We measured high resolution Cu edge resonant inelastic x-ray scattering (RIXS) of the undoped cuprates LaCuO, SrCuOCl, CaCuO and NdBaCuO.…