Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Magnetic circular dichroism in the dd excitation in the van der Waals magnet CrI3 probed by resonant inelastic x-ray scattering

Ghosh, Anirudha LU ; Jönsson, H. Johan M. ; Mukkattukavil, Deepak John ; Kvashnin, Yaroslav ; Phuyal, Dibya ; Thunström, Patrik ; Agåker, Marcus LU ; Nicolaou, Alessandro ; Jonak, Martin and Klingeler, Rüdiger , et al. (2023) In Physical Review B 107(11).
Abstract

We report on a combined experimental and theoretical study on CrI3 single crystals by employing the polarization dependence of resonant inelastic x-ray scattering (RIXS). Our investigations reveal multiple Cr 3d orbital splitting (dd excitations) as well as magnetic dichroism (MD) in the RIXS spectra. The dd excitation energies are similar on the two sides of the ferromagnetic transition temperature, TC∼61 K, although MD in RIXS is predominant at 0.4 T magnetic field below TC. This demonstrates that the ferromagnetic superexchange interaction that is responsible for the interatomic exchange field is vanishingly small compared with the local exchange field that comes from exchange and correlation interaction among the interacting Cr 3d... (More)

We report on a combined experimental and theoretical study on CrI3 single crystals by employing the polarization dependence of resonant inelastic x-ray scattering (RIXS). Our investigations reveal multiple Cr 3d orbital splitting (dd excitations) as well as magnetic dichroism (MD) in the RIXS spectra. The dd excitation energies are similar on the two sides of the ferromagnetic transition temperature, TC∼61 K, although MD in RIXS is predominant at 0.4 T magnetic field below TC. This demonstrates that the ferromagnetic superexchange interaction that is responsible for the interatomic exchange field is vanishingly small compared with the local exchange field that comes from exchange and correlation interaction among the interacting Cr 3d orbitals. The recorded RIXS spectra reported here reveal clearly resolved Cr 3d intraorbital dd excitations that represent transitions between electronic levels that are heavily influenced by dynamic correlations and multiconfiguration effects. Our calculations taking into account the Cr 3d hybridization with the ligand valence states and the full multiplet structure due to intra-atomic and crystal field interactions in Oh and D3d symmetry clearly reproduced the dichroic trend in experimental RIXS spectra.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B
volume
107
issue
11
article number
115148
publisher
American Physical Society
external identifiers
  • scopus:85151298553
ISSN
2469-9950
DOI
10.1103/PhysRevB.107.115148
language
English
LU publication?
yes
id
0857f2d3-54eb-4aee-81dc-f33f3217e967
date added to LUP
2023-05-23 11:04:53
date last changed
2023-05-23 11:04:53
@article{0857f2d3-54eb-4aee-81dc-f33f3217e967,
  abstract     = {{<p>We report on a combined experimental and theoretical study on CrI3 single crystals by employing the polarization dependence of resonant inelastic x-ray scattering (RIXS). Our investigations reveal multiple Cr 3d orbital splitting (dd excitations) as well as magnetic dichroism (MD) in the RIXS spectra. The dd excitation energies are similar on the two sides of the ferromagnetic transition temperature, TC∼61 K, although MD in RIXS is predominant at 0.4 T magnetic field below TC. This demonstrates that the ferromagnetic superexchange interaction that is responsible for the interatomic exchange field is vanishingly small compared with the local exchange field that comes from exchange and correlation interaction among the interacting Cr 3d orbitals. The recorded RIXS spectra reported here reveal clearly resolved Cr 3d intraorbital dd excitations that represent transitions between electronic levels that are heavily influenced by dynamic correlations and multiconfiguration effects. Our calculations taking into account the Cr 3d hybridization with the ligand valence states and the full multiplet structure due to intra-atomic and crystal field interactions in Oh and D3d symmetry clearly reproduced the dichroic trend in experimental RIXS spectra.</p>}},
  author       = {{Ghosh, Anirudha and Jönsson, H. Johan M. and Mukkattukavil, Deepak John and Kvashnin, Yaroslav and Phuyal, Dibya and Thunström, Patrik and Agåker, Marcus and Nicolaou, Alessandro and Jonak, Martin and Klingeler, Rüdiger and Kamalakar, M. Venkata and Sarkar, Tapati and Vasiliev, Alexander N. and Butorin, Sergei M. and Eriksson, Olle and Abdel-Hafiez, Mahmoud}},
  issn         = {{2469-9950}},
  language     = {{eng}},
  number       = {{11}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B}},
  title        = {{Magnetic circular dichroism in the dd excitation in the van der Waals magnet CrI3 probed by resonant inelastic x-ray scattering}},
  url          = {{http://dx.doi.org/10.1103/PhysRevB.107.115148}},
  doi          = {{10.1103/PhysRevB.107.115148}},
  volume       = {{107}},
  year         = {{2023}},
}