M. Magnaterra

activity

20222026

most citedQuasimolecular electronic structure of the spin-liquid candidate Ba

_{3}

InIr

_{2}

_{9}

14 citations · 71 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.str-el2026

Between Mott and cluster Mott: spin-orbit entangled dimer singlets in Ba $_{3}$ CeRu $_{2}$ O $_{9}$

L. Pätzold, A. Sandberg, H. Schilling +8

The hexagonal 4d ruthenates Ba3MRu2O9 host structural dimers and exhibit a delicate balance of competing interactions. Hund's coupling, trigonal crystal-field splitting, and hoppin…

cond-mat.str-el2024★ 2 cited

Quasimolecular electronic structure of the trimer iridate Ba $_{4}$ NbIr $_{3}$ O $_{12}$

M. Magnaterra, A. Sandberg, H. Schilling +17

The insulating mixed-valent Ir $^{+ 3.66}$ compound Ba $_{4}$ NbIr $_{3}$ O $_{12}$ hosts two holes per Ir $_{3}$ O $_{12}$ trimer unit. We address the electronic structure via resonant inelastic…

cond-mat.str-el2024★ 6 cited

Spin-orbital-lattice entanglement in the ideal j=1/2 compound K $_{2}$ IrCl $_{6}$

P. Warzanowski, M. Magnaterra, Ch. J. Sahle +9

Mott insulators with spin-orbit entangled j=1/2 moments host intriguing magnetic properties. The j=1/2 wave function requires cubic symmetry, while a noncubic crystal field mixes j…

cond-mat.str-el2023★ 7 cited

Spin-orbit coupling in a half-filled $t_{2 g}$ shell: the case of $5 d^{3}$ K $_{2}$ ReCl $_{6}$

P. Warzanowski, M. Magnaterra, G. Schlicht +9

The half-filled $t_{2 g}$ shell of the $t_{2 g}^{3}$ configuration usually, in LS coupling, hosts a S = 3/2 ground state with quenched orbital moment. This state is not Jahn-Teller act…

cond-mat.str-el2023★ 13 cited

Quasimolecular $J_{tet}$ =3/2 moments in the cluster Mott insulator GaTa $_{4}$ Se $_{8}$

M. Magnaterra, J. Attig, L. Peterlini +8

Quasimolecular orbitals in cluster Mott insulators provide a route to tailor exchange interactions, which may yield novel quantum phases of matter. We demonstrate the cluster Mott…

cond-mat.str-el2023★ 9 cited

Electronic excitations in $5 d^{4}$ J=0 Os $^{4 +}$ halides studied by RIXS and optical spectroscopy

P. Warzanowski, M. Magnaterra, P. Stein +10

We demonstrate that the cubic antifluorite-type halides K $_{2}$ OsCl $_{6}$ , K $_{2}$ OsBr $_{6}$ , and Rb $_{2}$ OsBr $_{6}$ are excellent realizations of non-magnetic J=0 compounds. The magnetic susc…

cond-mat.str-el2023★ 2 cited

RIXS observation of bond-directional nearest-neighbor excitations in the Kitaev material Na $_{2}$ IrO $_{3}$

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…

cond-mat.str-el2022★ 11 cited

RIXS interferometry and the role of disorder in the quantum magnet Ba $_{3}$ Ti $_{3 - x}$ Ir $_{x}$ O $_{9}$

M. Magnaterra, M. Moretti Sala, G. Monaco +8

Motivated by several claims of spin-orbit driven spin-liquid physics in hexagonal Ba $_{3}$ Ti $_{3 - x}$ Ir $_{x}$ O $_{9}$ hosting Ir2O9 dimers, we report on resonant inelastic x-ray scattering…

cond-mat.str-el2022★ 14 cited

Quasimolecular electronic structure of the spin-liquid candidate Ba $_{3}$ InIr $_{2}$ O $_{9}$

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 $^{4.5 +}$ ions in face-sharing IrO6 octahe…

cond-mat.str-el2022★ 7 cited

Spin-orbit coupling and crystal-field splitting in Ti-doped Ca2RuO4 studied by ellipsometry

I. Vergara, M. Magnaterra, J. Attig +5

In Ca2RuO4, the competition of spin-orbit coupling $ζ$ and tetragonal crystal field splitting $Δ_{C F}$ has been discussed controversially for many years. The orbital occupation dep…

Between Mott and cluster Mott: spin-orbit entangled dimer singlets in Ba3​CeRu2​O9​

Quasimolecular electronic structure of the trimer iridate Ba4​NbIr3​O12​

Spin-orbital-lattice entanglement in the ideal j=1/2 compound K2​IrCl6​

Spin-orbit coupling in a half-filled t2g​ shell: the case of 5d3 K2​ReCl6​

Quasimolecular Jtet​=3/2 moments in the cluster Mott insulator GaTa4​Se8​

Electronic excitations in 5d4 J=0 Os4+ halides studied by RIXS and optical spectroscopy

RIXS observation of bond-directional nearest-neighbor excitations in the Kitaev material Na2​IrO3​

RIXS interferometry and the role of disorder in the quantum magnet Ba3​Ti3−x​Irx​O9​

Quasimolecular electronic structure of the spin-liquid candidate Ba3​InIr2​O9​