TY  - JOUR
AU  - Yang, Zichen
AU  - Wang, Lichen
AU  - Zhao, Dong
AU  - Luo, Mingdi
AU  - Laha, Sourav
AU  - Güth, Achim
AU  - Taniguchi, Takashi
AU  - Watanabe, Kenji
AU  - Lotsch, Bettina V.
AU  - Smet, Jurgen H.
AU  - Minola, Matteo
AU  - Gretarsson, Hlynur
AU  - Keimer, Bernhard
TI  - Resonant inelastic x-ray scattering from electronic excitations in α − RuCl<sub>3</sub> nanolayers
JO  - Physical review / B
VL  - 108
IS  - 4
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - PUBDB-2023-04838
SP  - L041406
PY  - 2023
AB  - 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.  
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001103167400003
DO  - DOI:10.1103/PhysRevB.108.L041406
UR  - https://bib-pubdb1.desy.de/record/588611
ER  -