The promise of resonant inelastic X-ray scattering for modern Kondo physics

Abstract

Developments in synchrotron accelerator and end station capabilities have brought new techniques to bear on complex matter. The recently-enabled technique of resonant inelastic X-ray scattering (RIXS) has emerged as a serious contender of inelastic neutron scattering as a probe of magnetic structure in correlated electronic materials, but can also reveal perspectives on electronic structural not attainable by optical conductivity or angle-resolved photoemission. Here we introduce the basics of this powerful technique and discuss the prospects to turn this probe onto the charge excitations in Kondo lattice systems.

Magnetic Contrast at Spin-Flip Excitations: An Advanced X-Ray Spectroscopy Tool to Study Magnetic-Ordering

“…The resonance provides chemical selectivity to a certain atom and enhances the inelastic scattering cross section, offering a unique way to probe charge, spin, and orbital degrees of freedom. 21,22 The highly excited atom contains a localized hole in the core that exists for a few picoseconds. This intermediate state can decay emitting photons from which the energies are measured to determine the energy deposited in the material and construct a RIXS spectrum.…”

“…Resonant inelastic X-ray scattering (RIXS) is a photon-in, photon-out technique where the incident energy is tuned such that it resonates with a specific element exciting an electron out of its core shells into an empty electronic state. The resonance provides chemical selectivity to a certain atom and enhances the inelastic scattering cross section, offering a unique way to probe charge, spin, and orbital degrees of freedom. , The highly excited atom contains a localized hole in the core that exists for a few picoseconds. This intermediate state can decay emitting photons from which the energies are measured to determine the energy deposited in the material and construct a RIXS spectrum.…”

Advances in Photoelectric Detection Units for Imaging Based on Perovskite Materials

“…[102] When X-ray passes through an object, because different physical materials have different absorption and transmission capabilities, according to the interaction between light and material, X-ray signals passing through the object can be detected to measure the internal information carried. [103] Due to these characteristics, X-ray is widely used in security check, military, scientific research, medicine and other fields. [104][105][106][107] Traditional X-ray detection materials are not sensitive enough for lowdose detection and the imaging quality is not high enough, which seriously limits the development of high-quality X-ray imaging.…”