Unraveling orbital ordering in La0.5Sr1.5MnO4.
Orbital ordering (OO) in the layered perovskite La0.5Sr1.5MnO4 has been investigated using the enhanced sensitivity of soft x-ray resonant diffraction at the Mn L edges. The energy dependence of an OO diffraction peak over the L(2,3) edges is compared to ligand-field calculations allowing a distinction between the influences of Jahn-Teller distortions and spin correlations. The energy dependence of the diffraction peak at the Mn L1 edge is remarkably different from that observed at the Mn K edge.
Diamond Light Source, Chilton, Didcot OX11 0QX, United Kingdom. dhesi@diamond.ac.uk
S S
SS
Dhesi
A
A
Mirone
C
C
De Nadaï
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P
Ohresser
P
P
Bencok
N B
NB
Brookes
P
P
Reutler
A
A
Revcolevschi
A
A
Tagliaferri
O
O
Toulemonde
G
G
van der Laan