%0 Journal Article
%A Yang, Zichen
%A Wang, Lichen
%A Zhao, Dong
%A Luo, Mingdi
%A Laha, Sourav
%A Güth, Achim
%A Taniguchi, Takashi
%A Watanabe, Kenji
%A Lotsch, Bettina V.
%A Smet, Jurgen H.
%A Minola, Matteo
%A Gretarsson, Hlynur
%A Keimer, Bernhard
%T Resonant inelastic x-ray scattering from electronic excitations in α − RuCl<sub>3</sub> nanolayers
%J Physical review / B
%V 108
%N 4
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M PUBDB-2023-04838
%P L041406
%D 2023
%X We present Ru L<sub>3</sub>-edge resonant inelastic x-ray scattering (RIXS) measurements of spin-orbit and d−d excitations in exfoliated nanolayers of the Kitaev spin-liquid candidate RuCl<sub>3</sub>. Whereas the spin-orbit excitations are independent of thickness, we observe a pronounced redshift and broadening of the d−d excitations in layers with thicknesses below ∼7 nm. Aided by model calculations, we attribute these effects to distortions of the RuCl<sub>6</sub> octahedra near the surface. Our study paves the way towards RIXS investigations of electronic excitations in various other two-dimensional materials and heterostructures.  
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001103167400003
%R 10.1103/PhysRevB.108.L041406
%U https://bib-pubdb1.desy.de/record/588611