173 citations · 1.1k across the 41 of their papers we have counts for
6 papers · 1 filter
Unconventional crystal structure of the high-pressure superconductor LaNiO
Pascal Puphal, Pascal Reiss, Niklas Enderlein +14
The discovery of high-temperature superconductivity in LaNiO at pressures above 14 GPa has spurred extensive research efforts. Yet, fundamental aspects of the supercond…
Planar parallel phonon Hall effect and local symmetry breaking
Quentin Barthélemy, Étienne Lefrançois, Lu Chen +5
Y-kapellasite [Y3Cu9(OH)19Cl8] is a frustrated antiferromagnetic insulator which remains paramagnetic down to a remarkably low Néel temperature of about 2 K. Having studied this ma…
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…