Probing high-energy electronic excitations using inelastic neutron scattering

Abstract

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.

5 pages, 3 figures

References in corpus (2)

• Non-resonant inelastic x-ray scattering involving excitonic excitations
• Theory of two magnon Raman scattering in antiferromagnetic iron pnictides

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