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Electronic excitations in J=0 Os halides studied by RIXS and optical spectroscopy
P. Warzanowski, M. Magnaterra, P. Stein +10
We demonstrate that the cubic antifluorite-type halides KOsCl, KOsBr, and RbOsBr are excellent realizations of non-magnetic J=0 compounds. The magnetic susc…
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…
RIXS observation of bond-directional nearest-neighbor excitations in the Kitaev material NaIrO
M. Magnaterra, K. Hopfer, Ch. J. Sahle +13
Spin-orbit coupling locks spin direction and spatial orientation and generates, in semi-classical magnets, a local spin easy-axis and associated ordering. Quantum spin-1/2's defy t…
RIXS interferometry and the role of disorder in the quantum magnet BaTiIrO
M. Magnaterra, M. Moretti Sala, G. Monaco +8
Motivated by several claims of spin-orbit driven spin-liquid physics in hexagonal BaTiIrO hosting Ir2O9 dimers, we report on resonant inelastic x-ray scattering…
Quasimolecular electronic structure of the spin-liquid candidate BaInIrO
A. Revelli, M. Moretti Sala, G. Monaco +16
The mixed-valent iridate Ba3InIr2O9 has been discussed as a promising candidate for quantum spin-liquid behavior. The compound exhibits Ir ions in face-sharing IrO6 octahe…
SrLiIrO: a potential quantum spin liquid candidate in the one dimensional iridate family
Abhisek Bandyopadhyay, A. Chakraborty, S. Bhowal +8
Spin-orbit coupling (SOC) offers a large variety of novel and extraordinary magnetic and electronic properties in otherwise `ordinary pool' of heavy ion oxides. Here we present a d…