Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2011-06-23
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 3 figures
Scientific paper
High-energy, local multiplet excitations of the d-electrons are revealed in our inelastic neutron scattering measurements on the prototype magnetic insulator NiO. These become allowed by the presence of both non-zero crystal field and spin-orbit coupling. The observed excitations are consistent with optical, x-ray, and EELS measurements of d-d excitations. This experiment serves as a proof of principle that high-energy neutron spectroscopy is a reliable and useful technique for probing electronic excitations in systems with significant crystal field and spin-orbit interactions.
Devereaux Thomas P.
Kim Young-June
Perring T. G.
Sorini Adam P.
Stock Chris
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