activity
20202026
most citedMobile orbitons in CaCuO: crucial role of the Hund's exchange

16 citations · 26 across the 6 of their papers we have counts for

collaborators

7 papers

cond-mat.other2026

Resonantly Enhanced Multiphonon Scattering and Local Orbital-Phonon Coupling in Bulk and Thin Flakes of 2D Single Crystals of Antiferromagnetic (NixFe1-x)2P2S6

Nasaru Khan, Miłosz Rybak, Yuliia Shemerliuk +5

Orbital degrees of freedom play a pivotal role in shaping the physical properties of two-dimensional (2D) van der Waals magnetic systems, strongly influencing electron-phonon coupl…

cond-mat.str-el2026

Microscopic Emergence of Ancilla Lattice Physics in the Emery Model

Mikołaj Walicki, Johannes Knolle, Krzysztof Wohlfeld

We derive a controlled low-energy effective theory for the three-band Emery model on the Lieb lattice near (n=2) filling. Starting from the positive charge-transfer regime, a seque…

cond-mat.str-el2026

Evidence for Many-Body States in NiPS Revealed by Angle-Resolved Photoelectron Spectroscopy

Miłosz Rybak, Benjamin Pestka, Biplab Bhattacharyya +11

We present -ARPES spectra of the Mott-insulating van der Waals antiferromagnet NiPS. Signatures of strong correlations -- such as the onset of atomic or atomic-ligand multip…

cond-mat.str-el2025★ 1 cited

Probing the band structure of the strongly correlated antiferromagnet NiPS3 across its phase transition

Benjamin Pestka, Biplab Bhattacharyya, Milosz Rybak +19

NiPS3 is an exfoliable van-der-Waals intralayer antiferromagnet with zigzag-type spin arrangement. It is distinct from other TMPS3 (TM: transition metal) materials by optical excit…

cond-mat.str-el2025

Neodymium ions as charge reservoir in NdNiO: from lack of long range order to electron-doping-induced antiferromagnetism

Adam Kłosiński, Roman Drachynskyi, Krzysztof Wohlfeld +1

We study magnetism in the electron-doped infinite-layer nickelate NdNiO. We perform an unrestricted Hartree-Fock calculation for a tight-binding model which contains both nicke…

cond-mat.str-el2024★ 9 cited

Exploring d-Wave Magnetism in Cuprates from Oxygen Moments

Ying Li, Valentin Leeb, Krzysztof Wohlfeld +2

The antiferromagnetic parent phase of high-T cuprates has been established as a Néel state of copper moments, but early work pointed out the important role of ligand oxygen orb…

cond-mat.str-el2020★ 16 cited

Mobile orbitons in CaCuO: crucial role of the Hund's exchange

Roberto Fumagalli, Jonas Heverhagen, Davide Betto +9

We investigate the Cu edge resonant inelastic x-ray scattering (RIXS) spectra of a quasi-1D antiferromagnet CaCuO. In addition to the magnetic excitations, which are…