151 citations · 906 across the 22 of their papers we have counts for
6 papers · 1 filter
Plasmon dispersion in bilayer cuprate superconductors
M. Bejas, V. Zimmermann, D. Betto +11
The essential building blocks of cuprate superconductors are two-dimensional CuO sheets interspersed with charge reservoir layers. In bilayer cuprates, two closely spaced CuO$_…
Spin-orbit excitons in a correlated metal: Raman scattering study of Sr2RhO4
Lichen Wang, Huimei Liu, Valentin Zimmermann +6
Using Raman spectroscopy to study the correlated 4-electron metal SrRhO, we observe pronounced excitations at 220 meV and 240 meV with and $B_\mathrm{1g}…
Single crystal synthesis, structure, and magnetism of PbCu(PO)O
P. Puphal, M. Y. P. Akbar, M. Hepting +4
The recent claim of superconductivity above room temperature in PbCu(PO)O with 0.9 < < 1 (referred to as LK-99) has sparked considerable interest. To minim…
Evolution of plasmon excitations across the phase diagram of the cuprate superconductor LaSrCuO
M. Hepting, T. D. Boyko, V. Zimmermann +19
We use resonant inelastic x-ray scattering (RIXS) at the O - and Cu -edges to investigate the doping- and temperature dependence of low-energy plasmon excitations in La$_{2-x…
Phase formation in hole- and electron-doped rare-earth nickelate single crystals
P. Puphal, V. Sundaramurthy, V. Zimmermann +5
The recent discovery of superconductivity in hole-doped infinite-layer nickelates has triggered a great interest in the synthesis of novel nickelate phases, which have primarily be…
Topotactically induced oxygen vacancy order in nickelate single crystals
Yu-Mi Wu, Pascal Puphal, Hangoo Lee +6
The strong structure-property coupling in rare-earth nickelates has spurred the realization of new quantum phases in rapid succession. Recently, topotactic transformations have pro…