Resonant X-ray Scattering Experiments on the Ordering of Electronic Degrees of Freedom

Abstract

Resonant X-ray scattering (RXS) has been developed as a powerful technique for observing orderings of electronic degrees of freedom: charge, spin, orbital, and multipoles. After a brief introduction of the RXS technique, we review some RXS experiments on the orderings in d and f electron systems with a strong correlation between electrons. The basic concept of RXS and the recent developments of the technique are described in this review paper. We also present future prospects of the studies using RXS for users.

Melting of chiral order in terbium manganate (TbMnO3) observed with resonant x-ray Bragg diffraction

“…A40 89], and Templeton and Templeton report the first relevant data, e.g., tetragonal K 2 PtCl 4 (P4/mmm-type) and sodium bromate (P2 1 3-type) [24]. Reviews of many applications of resonant x-ray Bragg diffraction, and advances in formulations, include [18,19,20].…”

Quantitative determination of bond order and lattice distortions in nickel oxide heterostructures by resonant x-ray scattering

“…In the past two decades resonant x-ray scattering (RXS) has seen increasing use as a probe of charge, spin, and orbital ordering in 3d transition metal oxides. [15][16][17][18] At the transition metal L edge, where a 2p core electron is excited into the 3d orbitals, one can study the states directly at the Fermi level. However, photons at this resonance have energies of a few hundred eV, which correspond to wavelengths too long to probe electronic order in many lattice structures.…”

Reprint of: Combining theory and experiment for X-ray absorption spectroscopy and resonant X-ray scattering characterization of polymers

“…Once again, this can be achieved by combining XPCS with spec- troscopy. However, most of the resonance-enhanced XPCS research up this point has been done using soft X-rays on solid inorganic materials (Fig 8) [137][138][139][140][141]136]. However, despite the thorough background shown in the previous sections, resonance-enhanced XPCS still has not seen use in polymers.…”