Speaker
Ms
Lakshmi Das
(Lakshmi)
Description
Here, we have studied the magnetically ordered phase of Ca2RuO4 at T = 16 K, using O-K edge Resonant Inelastic X-ray Scattering technique. Four
excitations have been identifed- 2 low energy exci-
tations at 80 meV and 400 meV respectively and two high energy excitations at energies 1.3 eV and 2.2 eV . The low energy peaks are interpreted
to be arising from composite spin- orbital excitations
due to spin orbit coupling and the high energy ex-
citations arise from singlet-triplet
excitations at the Ruthenium site set by
Hund's coupling. With the light polarisation analysis of the x-ray
absorption and the RIXS spectra, we were able to
characterise the mott active Ruthenium orbitals in-
volved in the absorption processes.
Authors
Ms
Lakshmi Das
(Lakshmi)
Prof.
Johan Chang
Ms
Mario Cuoco
Dr
Masafumi Horio
Co-authors
Dr
Fiona Forte
Dr
V Granata
Dr
Oleh Ivashko
Dr
M Dantz
Dr
Daniel McNally
Mr
Yi Tseng
Mr
Frank Schindler
Dr
H Ronnow
Mr
W Wan
Dr
J. Pellicciari
Dr
Paul Olade-Velasco
Dr
N. Kikugawa
Dr
A. Vecchione
Dr
C.G Fatuzzo
Dr
T. Schmitt
Dr
N.B Christensen
Dr
R. Fittipaldi
Prof.
Titus Neupert
