60 citations · 152 across the 8 of their papers we have counts for
8 papers
Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO
S. Hayashida, V. Sundaramurthy, P. Puphal +10
Recent x-ray spectroscopic studies have revealed spin excitations and charge density waves in thin films of infinite-layer (IL) nickelates. However, clarifying whether the origin o…
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…
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…
Investigation of hydrogen incorporations in bulk infinite-layer nickelates
Pascal Puphal, Vladimir Pomjakushin, Roberto A. Ortiz +4
Infinite-layer (IL) nickelates are an emerging class of superconductors, where the Ni valence state in a square planar NiO coordination can only be reached via topotacti…
Magnetic correlations in infinite-layer nickelates: an experimental and theoretical multi-method study
R. A. Ortiz, P. Puphal, M. Klett +12
We report a comprehensive study of magnetic correlations in LaNiO, a parent compound of the recently discovered family of infinite-layer (IL) nickelate superconductors, using…
Formation of orbital molecules on a pyrochlore lattice induced by A-O bond covalency
A. Krajewska, A. Yaresko, J. Nuss +15
The pyrochlore ruthenate InRuO displays a subtle competition between spin-orbital entanglement and molecular orbital formation. At room temperature, a spin-orbit-entang…